Developers, testers, and quality assurance (QA) engineers can use it to optimize application performance, scalability, or capacity. Developers, testers, and quality assurance (QA) engineers can use it to optimize application performance, scalability, or capacity. Once the data has been loaded, the example displays the contents of all its tables in the Console window. The Load method fills each supplied DataTable instance with data from a single result set from the source data reader. See AssemblyName.ProcessorArchitecture. Finally, the example displays the contents of the tables in the console window. assemblyRef specifies a remote assembly, but the ability to execute code in remote assemblies is disabled. The DataSet isn't responsible for tracking changes in order to allow synchronization with the secondary data source. The TextReader used to feed the XML data into the document. Load balancing aims to optimize resource use, maximize throughput, minimize response time, and avoid overloading any single resource. You can use this event to perform tasks such as allocating resources used by the form. FileLoadException is thrown if assemblyRef specifies the full assembly name, and the first assembly that matches the simple name has a different version, culture, or public key token. See http://go.microsoft.com/fwlink/?LinkId=155570 for more information. The schema operations take place for all imported result sets, even those containing no data. This version of the Load method attempts to preserve the current values in each row, leaving the original value intact. The read only constraint on a DataColumn is applicable only for changes that occur in memory. The evidence that first succeeds is the evidence that is used. Parameters Object Reflecting on C++ executable files might throw a BadImageFormatException. Call FindName with the name that you defined on the element. Loads the XML document from the specified XmlReader. Version 2.0 or later of the common language runtime is currently loaded and assemblyString was compiled with a later version. ; Multiple columns at a time in the form of a vector like HistoricalPrices in the HousingData class. WebThis occurs because the form values have already been loaded. Fills a DataSet with values from a data source using the supplied IDataReader. If the match fails, a FileLoadException is thrown. The PreserveWhitespace property determines whether or not insignificant white space, that is white space in element content, is preserved. If the file is not found, the CodeBase property is used to search for the assembly. When you use a Load method overload with a Byte[] parameter to load a common object file format (COFF) image, evidence is inherited from the calling assembly. Load (DirectX HLSL Texture Object) Article 04/28/2022 2 minutes to read 6 contributors Feedback In this article Parameters Return Value Minimum Shader Model Example Related topics Reads texel data without any filtering or sampling. The expression should return true to load and false to unload the element. Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Later the user intends to propagate changes back to the primary data source. The following table displays behavior for the Load method when called with each of the LoadOption values, and also shows how the values interact with the row state for the row being loaded. Loading Elements There are several different ways to load the elements: Use an x:Bind expression to specify the load state. Key scenarios that you can accomplish using Azure Standard In each case, both events occur, and the action is the same for each. typeX denotes that there are four possible types: int, int2, int3 or int4. Set the property to false to indicate that you wish to halt processing. Load balancer supports both inbound and outbound scenarios. Use the Show method to make the object visible. typeX denotes that there are four possible types: int, int2, int3 or int4. If the reader is in the initial state (ReadState =ReadState.Initial), Load consumes the entire contents of the reader and builds the DOM from what it finds. There are several scenarios where you may want to load entities from the database into the context without immediately doing anything with those entities. A load balancer health probe monitors a given port on each VM and only distributes traffic to an operational VM. Using this delegate mechanism, rather than a simpler try/catch block, allows you to determine the error, handle the situation, and continue processing if you like. This method should be used only to load an assembly into the current application domain. Loading Elements There are several different ways to load the elements: Use an x:Bind expression to specify the load state. Exceptions XmlException There is a load or parse error in the XML. Load balancing aims to optimize resource use, maximize throughput, minimize response time, and avoid overloading any single resource. Loads an assembly with the specified name. Instead, the common language runtime tries to load the assembly into the calling application domain. The following example creates a new DataSet, adds two DataTable instances to the DataSet, and then fills the DataSet using the Load method, retrieving data from a DataTableReader that contains two result sets. typeX denotes that there are four possible types: int, int2, int3 or int4. In this case, a FileNotFoundException is raised. Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Loads an assembly given its display name, loading the assembly into the domain of the caller using the supplied evidence. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. The assembly is loaded into the application domain of the caller. Let me explain it again. The URL can be either a local file or an HTTP URL (a Web address). Here are two examples of using Load. The rules for assembly and security evidence merging are as follows: When you use a Load method with no Evidence parameter, the assembly is loaded with the evidence that the loader supplies. The techniques shown in this topic apply equally to models created with Code First and the EF Designer. The assembly is loaded into the application domain of the caller. For other examples that might be available, see the individual overload topics. When you use a Load method with an Evidence parameter, pieces of evidence are merged. The Upsert option facilitates aggregating changes from one or more secondary data sources. An array of type byte that is a COFF-based image containing an emitted assembly. The CodeBase property does not supply any elements of the assembly identity (such as name or version), so loading does not occur according to load-by-identity rules, as you would expect from the Load method. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. filename specified a file that is read-only. The LoadOption parameter is used for determining the specific version of the row that is to be used for primary key comparison. You define a front-end IP configuration that contains one or more public An Azure load balancer is a Layer-4 (TCP, UDP) load balancer that provides high availability by distributing incoming traffic among healthy VMs. These scenarios describe standard usage for a DataTable, describing its update and merge behavior. These scenarios describe standard usage for a DataTable, describing its update and merge behavior. After this file is loaded successfully, I consider to use inside to load another screen from 'C:\SubScreens\Screen1.xaml'. WebLoad-balancing options. The loadOption parameter allows you to specify how you want the imported data to interact with existing data, and can be any of the values from the LoadOption enumeration. More info about Internet Explorer and Microsoft Edge, Load(IDataReader, LoadOption, DataTable[]), Load(IDataReader, LoadOption, FillErrorEventHandler, DataTable[]). Developers, testers, and quality assurance (QA) engineers can use it to optimize application performance, scalability, or capacity. The FillErrorEventArgs parameter passed to the procedure provides properties that allow you to retrieve information about the error that occurred, the current row of data, and the DataTable being filled. Microsoft makes no warranties, express or implied, with respect to the information provided here. The following example illustrates the use of a long name to load the System.dll assembly for the .NET Framework 4: Note: In .NET for Windows Store apps or the Portable Class Library, catch the base class exception, IOException, instead. Load columns as: Individual columns like Size and CurrentPrices in the HousingData class. An array of type byte containing the raw bytes representing the symbols for the assembly. Please use an overload of Load which does not take an Evidence parameter. See the documentation for the Load method for more information on using this parameter. Fills a DataSet with values from a data source using the supplied IDataReader, using an array of strings to supply the names for the tables within the DataSet. WebThis occurs because the form values have already been loaded. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. Incremental data feed from secondary data sources. If the current node and its siblings look like the following: Load succeeds, but you have an incomplete DOM tree because there is no root level element. Loads an Assembly given its display name. Load balancer provides low latency and high throughput, and scales up to millions of flows for all TCP and UDP applications. The return values for the reg load operation are: To load the file named TempHive.hiv to the key HKLM\TempHive, type: More info about Internet Explorer and Microsoft Edge, Specifies the full path of the subkey to be loaded. First, the example focuses on schema issues, including inferring a schema from the loaded IDataReader, and then handling incompatible schemas, and schemas with missing or additional columns. This file must be created in advance by using the The expression should return true to load and false to unload the element. The default namespace associated with DataSet, if any, is associated with each newly created DataTable. This method provides the same functionality, but allows you to load multiple result sets from an IDataReader into multiple tables within a DataSet. The following example loads an assembly given its fully qualified name, and lists all the types contained in the specified assembly. Parameters Object Execute an extension by issuing the full !DLLName.ExtensionCommand syntax. In the following example, UserForm2 is loaded during UserForm1's Initialize event. It corresponds to the assembly's FullName property. If both the AssemblyName.Name property and the AssemblyName.CodeBase property are set, the first attempt to load the assembly uses the display name (including version, culture, and so on, as returned by the Assembly.FullName property). -or-. Specifies the name and path of the file to be loaded. The following table describes the three load options provided by the LoadOption enumeration. A value from the LoadOption enumeration that indicates how rows already in the DataTable instances within the DataSet will be combined with incoming rows that share the same primary key. The file specified in filename was not found. It's important to note that all of the elements in the vector A load balancer health probe monitors a given port on each VM and only distributes traffic to an operational VM. If no matching table is found, a table is created using the name supplied in the array of table names, and the new table's schema is inferred from the result set. See the documentation for the DataTableLoad method for more information on using this parameter. If the DataSet already contains rows, the incoming data from the data source is merged with the existing rows. The Load method's overwrites the read-only column values, if needed. Azure Load Testing Preview is a fully managed load-testing service that enables you to generate high-scale load. The following example adds a table to a DataSet, and then attempts to use the Load method to load data from a DataTableReader that contains an incompatible schema. Fills a DataTable with values from a data source using the supplied IDataReader. The assembly is loaded into the application domain of the caller. There is a set of screens provided and all are in .xaml extensions. Occurs when the server control is loaded into the Page object. Loads an Assembly into this application domain. In terms of event operations, the RowChanging event occurs before each row is changed, and the RowChanged event occurs after each row has been changed. An assembly or module was loaded twice with two different evidences. Beginning with the .NET Framework 4, the trust level of an assembly that is loaded by using this method is the same as the trust level of the application domain. (A partial name omits one or more of culture, version, or public key token. A DataTable synchronizes or updates with a single primary data source. With Azure Load Balancer, you can scale your applications and create highly available services. A value from the LoadOption enumeration that indicates how rows already in the DataTable are combined with incoming rows that share the same primary key. The name resolution scheme for this method is the same as that followed by the Fill method of the DbDataAdapter class. Loads an Assembly given its AssemblyName. Windows. The DataTable tracks changes, allowing synchronization with the primary data source. The following example demonstrates how to use the SetDesktopLocation, Load, Activated, and Activate members. If the registry key name contains a space, enclose the key name in quotes. In this The tables parameter allows you to specify an array of DataTable instances, indicating the order of the tables corresponding to each result set loaded from the reader. Please use an overload of Load which does not take an Evidence parameter. Load balancing aims to optimize resource use, maximize throughput, minimize response time, and avoid overloading any single resource. C# public virtual void Load (string filename); Parameters filename String URL for the file containing the XML document to load. Firstly, I want to load a Main Screen file from 'C:\MainScreen.xaml'. More info about Internet Explorer and Microsoft Edge, Load(IDataReader, LoadOption, FillErrorEventHandler). More info about Internet Explorer and Microsoft Edge, Introduction to the ASP.NET Page Life Cycle. This method automatically detects the string format of the input XML (for example, UTF-8, ANSI, and so on). This file must be created in advance by using the Zone, Url and Site are inherited from the calling assembly, and Hash and StrongName are taken from the COFF assembly. C# public System.Reflection.Assembly Load (byte[] rawAssembly); Parameters rawAssembly Byte [] An array of type byte that is a COFF-based image containing an emitted assembly. The schemas are compatible, but the loaded result set schema contains columns that do not exist in the, The schemas are compatible, but the loaded result set schema contains fewer columns than does the, If a missing column has a default value defined or the column's data type is nullable, the, The schemas are compatible, but the loaded result set schema contains columns that don't exist in the, Original version, if it exists, otherwise Current version, Current version, if it exists, otherwise Original version. WebLoad (Stream) Creates a new XDocument instance by using the specified stream. Applies to See also Introduction to the ASP.NET Page Life Cycle Recommended content UpdatePanel (System.Web.UI) LinkButton (System.Web.UI.WebControls) Web In addition, a DataTable can accept incremental data from one or more secondary data sources. When converting data, the Load method uses the same conversion rules as the Fill method. Some information relates to prerelease product that may be substantially modified before its released. Loads the XML document from the specified URL. If a remote computer is specified, valid root keys are: HKLM and HKU. The specified path, file name, or both exceed the system-defined maximum length. Given these two hypothetical data sources, a user is likely to require one of the following behaviors: Initialize DataTable from a primary data source. You define a front-end IP configuration that contains one or more public These scenarios describe standard usage for a DataTable, describing its update and merge behavior. An IDataReader that provides one or more result sets. C# Copy public static System.Xml.Linq.XDocument Load (System.IO.Stream stream); Parameters stream Stream The stream that contains the XML data. Subsequent clicking on UserForm2 reveals UserForm1. Microsoft makes no warranties, express or implied, with respect to the information provided here. Next steps. The FillErrorEventArgs parameter passed to the procedure provides properties that allow you to retrieve information about the error that occurred, the current row of data, and the DataTable being filled. Execute an extension by issuing the full !DLLName.ExtensionCommand syntax. If you call this method more than once on the same assembly but with a different evidence specified, the common language runtime does not throw a FileLoadException because the equality and integrity of the different evidence specifications cannot be determined. WebThe Load method provides a technique for filling a single DataTable with data, retrieved from an IDataReader instance. Specifies the name and path of the file to be loaded. WebLoad (String) Load (Byte [], Byte []) Overloads Load (Byte []) Loads the Assembly with a common object file format (COFF) based image containing an emitted Assembly. Evidence of the calling assembly and evidence of the COFF image is ignored. The long form of an assembly name consists of its simple name (such as "System" for the System.dll assembly) along with its version, culture, public key token, and optionally its processor architecture. Applies to See also Introduction to the ASP.NET Page Life Cycle Recommended content UpdatePanel (System.Web.UI) LinkButton (System.Web.UI.WebControls) Web The assembly is loaded into the domain of the caller using the supplied evidence. Until an object is visible, a user can't interact with it. The Load method always preserves significant white space. Windows. The following sample demonstrates the use of loading a raw assembly. For more information, see the Remarks section of the XmlReader reference page. Specifies the name and path of the file to be loaded. The URL can be either a local file or an HTTP URL (a Web address). Loads the Assembly with a common object file format (COFF) based image containing an emitted Assembly. The load operation will fail with an InvalidOperationException if any of the source data columns in the incoming reader are computed columns. The term load balancing refers to the distribution of workloads across multiple computing resources. Load object The object placeholder represents an object expression that evaluates to an object in the Applies To list. In general, the PreserveChanges and OverwriteChanges options are intended for scenarios in which the user needs to synchronize the DataSet and its changes with the primary data source. The example uses the file, books.xml, as input. FileLoadException is thrown if assemblyString specifies the full assembly name, and the first assembly that matches the simple name has a different version, culture, or public key token. The example then focuses on data issues, including handling the various loading options. Returns XDocument An XDocument object that reads the data that is contained in the stream. One common way to do this is to write a LINQ query and then call ToList on it, only to immediately discard the created list. Key scenarios that you can accomplish using Azure Standard To load the correct assembly, it's recommended to call the Load method by passing the long form of the assembly name. WebLoad (String) Load (Byte [], Byte []) Overloads Load (Byte []) Loads the Assembly with a common object file format (COFF) based image containing an emitted Assembly. See FullName. An assembly or module was loaded twice with two different evidences. For information that is common to all overloads of this method, see the Load(AssemblyName) method overload. Forms Assembly: System.Windows.Forms.dll Important Some information relates to prerelease product that may be substantially modified before its released. Azure Load Testing Preview is a fully managed load-testing service that enables you to generate high-scale load. Use the Show method to make the object visible. The return type matches the type in the Object declaration. The Load method handles such columns in a manner that is consistent with the behavior defined by the column's properties. The XmlReader used to feed the XML data into the document. The service simulates traffic for your applications, regardless of where they're hosted. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. This method provides the same functionality, but allows you to load multiple result sets from an IDataReader into multiple tables within a DataSet. To load an extension DLL, you can do one of the following: Use the .load or .loadby command. The evidence that first succeeds is the evidence that is used. Reads texel data without any filtering or sampling. In this scenario, the user wants to initialize an empty DataSet with values from the primary data source. If the reader is positioned on a leaf node that is invalid for the root level of a document, for example a white space or attribute node, the reader continues to read until it is positioned on a node that can be used for the root. These values may be equivalent, or may be different if the data in the row has been changed since filling the DataTable. WebLoad (Stream) Creates a new XDocument instance by using the specified stream. If a version of the requested assembly is already loaded, this method returns the loaded assembly, even if a different version is requested. Pieces of evidence supplied as an argument to the Load method supersede pieces of evidence supplied by the loader. The following example uses the StringReader class to load a string of XML data into the XmlDocument object. Some information relates to prerelease product that may be substantially modified before its released. WebThe Load method provides a technique for filling a single DataTable with data, retrieved from an IDataReader instance. Microsoft makes no warranties, express or implied, with respect to the information provided here. Remarks The following table displays behavior for the Load method. Writes saved subkeys and entries into a different subkey in the registry. ; If you have a vector property, apply the VectorType attribute to the property in your data model. Here are two examples of using Load. C# Copy public static System.Xml.Linq.XDocument Load (System.IO.Stream stream); Parameters stream Stream The stream that contains the XML data. If both the AssemblyName.Name property and the AssemblyName.CodeBase property are set, the first attempt to load the assembly uses the display name (including version, culture, and so on, as returned by the Assembly.FullName property). The Load method attempts to find a table within the DataSet matching the name found in the array of table names, in order. Before considering the behavior of the Load method in terms of data operations, consider that each row within a DataTable maintains both the current value and the original value for each column. More info about Internet Explorer and Microsoft Edge, http://go.microsoft.com/fwlink/?LinkID=155570, http://go.microsoft.com/fwlink/?LinkId=155570. Execute an extension by issuing the full !DLLName.ExtensionCommand syntax. Use the Show method to make the object visible. The first is taken from a Windows Forms data binding application where Load is used to query for entities before binding to the local collection, as described in Local Data: The second example shows using Load to load a filtered collection of related entities, as described in Loading Related Entities: More info about Internet Explorer and Microsoft Edge. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. WebLoad (String) Load (Byte [], Byte []) Overloads Load (Byte []) Loads the Assembly with a common object file format (COFF) based image containing an emitted Assembly. Be aware that setting the property to false causes the code that triggered the problem to throw an exception. All but one of the overloads for this method allows you to specify a load option parameter, indicating how rows already in a DataTable combine with rows being loaded. This method is provided as a convenience for interoperability callers who cannot call the static Assembly.Load method. WebTo load the correct assembly, it's recommended to call the Load method by passing the long form of the assembly name. Microsoft makes no warranties, express or implied, with respect to the information provided here. The following example instantiates an AssemblyName object and uses it to load the sysglobal.dll assembly. Load columns as: Individual columns like Size and CurrentPrices in the HousingData class. A FillErrorEventHandler delegate to call when an error occurs while loading data. If the reader is already positioned on some node at depth "n", this method loads that node and all subsequent siblings up to the end tag that closes depth "n". After each result set, the Load method moves on to the next result set within the reader, until there are no more result sets. . With Azure Load Balancer, you can scale your applications and create highly available services. To specify a remote computer, include the computer name (in the format, Specifies the name and path of the file to be loaded. When one or more of the coordinates in Location exceed the u, v, or w mipmap level dimensions of the texture, Load returns zero in all components. The techniques shown in this topic apply equally to models created with Code First and the EF Designer. Be aware that setting the property to false causes the code that triggered the problem to throw an exception. [in] The texture coordinates; the last component specifies the mipmap level. This applies to the .NET Framework version 1.1 Service Pack 1 (SP1) and subsequent releases. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. WebThe Load method can be used in several common scenarios, all centered around getting data from a specified data source and adding it to the current data container (in this case, a DataTable ). WebThis occurs because the form values have already been loaded. This is most likely caused by the C++ compiler stripping the relocation addresses or the .reloc section from your executable file. The object that describes the assembly to be loaded. If you need to use a XmlDocument object to work with XML, you can use the XmlTextReader object to create one. Returns This partial code example is from the Paint.fx file in the AdvancedParticles Sample. You can also access other server controls within the page's control hierarchy. Starting with .NET Framework 4, because execution of code in remote assemblies is disabled by default, a FileLoadException is also thrown if assemblyRef specifies a remote assembly. In this case, the assumption is that the intent is to aggregate data from one or more data sources in the DataTable, and then perhaps propagate the data back to the primary data source. WebLoad-balancing options. In each case, the Action property of the DataRowChangeEventArgs instance passed to the event handler contains information about the particular action associated with the event. For information about the disadvantages of using the load-from context, see the Assembly.LoadFrom method overload or Best Practices for Assembly Loading. More info about Internet Explorer and Microsoft Edge. ; If you have a vector property, apply the VectorType attribute to the property in your data model. The assembly is loaded into the application domain of the caller using the specified source for the security context. typeX denotes that there are four possible types: int, int2, int3 or int4. The name resolution scheme for this method is the same as that followed by the Fill method of the DbDataAdapter class. There is a set of screens provided and all are in .xaml extensions. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. It's important to note that all of the elements in the vector Have questions or feedback about Office VBA or this documentation? Loading Elements There are several different ways to load the elements: Use an x:Bind expression to specify the load state. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information. This method allows you to specify a load option parameter, indicating how rows already in a DataTable combine with rows being loaded. Remarks The long form of an assembly name consists of its simple name (such as "System" for the System.dll assembly) along with its version, culture, public key token, and optionally its processor architecture. . The specified path is invalid (for example, it is on an unmapped drive). Loads an assembly given its AssemblyName. SampleIndex must always be specified first with multi-sample textures. Returns XDocument An XDocument object that reads the data that is contained in the stream. More info about Internet Explorer and Microsoft Edge. If you want validation to occur, you can create a validating XmlReader instance by using the XmlReaderSettings class and the Create method. Updates the original version of the row with the value of the incoming row.

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