To load an extension DLL, you can do one of the following: Use the .load or .loadby command. If the debugger has not yet loaded DLLName .dll, it loads the DLL at this point if it is located in the current DLL search path. Finally, the example displays the contents of the tables in the console window. The assembly is loaded into the domain of the caller using the supplied evidence. These scenarios describe standard usage for a DataTable, describing its update and merge behavior. For information that is common to all overloads of this method, see the Load(AssemblyName) method overload. For example, "ProcessorArchitecture=msil". Windows. In each case, both events occur, and the action is the same for each. 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. When converting data, the Load method uses the same conversion rules as the Fill method. You define a front-end IP configuration that contains one or more public Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. To determine which version of the primary key field to use for comparing the current row with an incoming row, the Load method uses the original version of the primary key value within a row, if it exists. The final row (labeled "(Not present)") describes the behavior for incoming rows that don't match any existing row. The following example instantiates an AssemblyName object and uses it to load the sysglobal.dll assembly. The Upsert option facilitates aggregating changes from one or more secondary data sources. Azure Load Testing Preview is a fully managed load-testing service that enables you to generate high-scale load. 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. For this code example to run, you must provide the fully qualified assembly name. 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. Using partial names has a negative effect on performance. The caller does not have the required permission. The following example demonstrates several of the issues involved with calling the Load method. 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. If the match fails, a FileLoadException is thrown. Loads the XML document from the specified XmlReader. The example then focuses on data issues, including handling the various loading options. It's important to note that all of the elements in the vector 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. Next steps. When you use a Load method with a Byte[] parameter and Evidence to load a COFF image, only the supplied evidence is used. There is a set of screens provided and all are in .xaml extensions. By default, legacy CAS policy is not enabled in the .NET Framework 4; when it is not enabled, securityEvidence must be null. 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. Forms Assembly: System.Windows.Forms.dll Important Some information relates to prerelease product that may be substantially modified before its released. C# Copy public static System.Xml.Linq.XDocument Load (System.IO.Stream stream); Parameters stream Stream The stream that contains the XML data. Loads the specified XML data from a Stream, a URL, a TextReader, or an XmlReader. The Load method fills each supplied DataTable instance with data from a single result set from the source data reader. C# Copy public static System.Xml.Linq.XDocument Load (System.IO.Stream stream); Parameters stream Stream The stream that contains the XML data. For information about how to obtain the fully qualified assembly name, see Assembly Names. If the registry key name contains a space, enclose the key name in quotes. If the registry key name contains a space, enclose the key name in quotes. The Load method provides a technique for filling a single DataTable with data, retrieved from an IDataReader instance. Loads an assembly given its display name, loading the assembly into the domain of the caller using the supplied evidence. WebThe Load method provides a technique for filling a single DataTable with data, retrieved from an IDataReader instance. The evidence that first succeeds is the evidence that is used. If a matching table is found, that table is loaded with the content of the current result set. Microsoft makes no warranties, express or implied, with respect to the information provided here. 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. Call GetTemplateChild with the name that you defined on the element. The loader does not continue probing for other assemblies that match the simple name. These scenarios describe standard usage for a DataSet, describing its update and merge behavior. This method is provided as a convenience for interoperability callers who cannot call the static Assembly.Load method. More info about Internet Explorer and Microsoft Edge. This occurs because the form values have already been loaded. securityEvidence is not null. A load balancer health probe monitors a given port on each VM and only distributes traffic to an operational VM. If the match fails, a FileLoadException is thrown. A IDataReader that provides a result set. Loads the XML document from the specified TextReader. 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. Version 2.0 or later of the common language runtime is currently loaded and assemblyRef was compiled with a later version. Loading Elements There are several different ways to load the elements: Use an x:Bind expression to specify the load state. A FillErrorEventHandler delegate to call when an error occurs while loading data. Developers, testers, and quality assurance (QA) engineers can use it to optimize application performance, scalability, or capacity. If you specify the OverwriteChanges or PreserveChanges options when calling the Load method, then the assumption is made that the incoming data is coming from the DataTable's primary data source, and the DataTable tracks changes and can propagate the changes back to the data source. Version 2.0 or later of the common language runtime is currently loaded and assemblyString was compiled with a later version. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. The URL can be either a local file or an HTTP URL (a Web address). Note that this method overload always creates a new Assembly object with its own mapping. WebLoad (String) Load (Byte [], Byte []) Overloads Load (Byte []) Loads the Assembly with a common object file format (COFF) based image containing an emitted Assembly. You define a front-end IP configuration that contains one or more public The offset type is dependent on the texture-object type, and needs to be static. C# public virtual void Load (string filename); Parameters filename String URL for the file containing the XML document to load. 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. Returns XDocument An XDocument object that reads the data that is contained in the stream. 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 ). The specified path, file name, or both exceed the system-defined maximum length. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. WebThe Load method provides a technique for filling a single DataTable with data, retrieved from an IDataReader instance. The following example loads an assembly given its fully qualified name, and lists all the types contained in the specified assembly. If you select the Upsert option, it is assumed that the data is coming from one of a secondary data source, such as data provided by a middle-tier component, perhaps altered by a user. If the registry key name contains a space, enclose the key name in quotes. WebLoad Event Reference Feedback Definition Namespace: System. Firstly, I want to load a Main Screen file from 'C:\MainScreen.xaml'. For overloads that take a string instead of an AssemblyName object, "MyAssembly, Version=1.0.0.0" is an example of a partial name and "MyAssembly, Version=1.0.0.0, Culture=neutral, PublicKeyToken=18ab3442da84b47" is an example of a full name.) WebLoad-balancing options. More info about Internet Explorer and Microsoft Edge, Load(IDataReader, LoadOption, DataTable[]), Load(IDataReader, LoadOption, FillErrorEventHandler, DataTable[]). 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. 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. A FillErrorEventHandler delegate to call when an error occurs while loading data. This method is obsolete and will be removed in a future release of the .NET Framework. In addition, a DataTable can accept incremental data from one or more secondary data sources. 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 ). Until an object is visible, a user can't interact with it. An IDataReader that provides one or more result sets. The Load method handles such columns in a manner that is consistent with the behavior defined by the column's properties. In the .NET Framework version 1.0 and in version 1.1 without SP1, when you use a Load method overload with a Byte[] parameter to load a COFF image, evidence is combined. The tables parameter allows you to specify an array of table names, indicating the order of the tables corresponding to each result set loaded from the reader. Loads an Assembly given its AssemblyName. Later the user intends to propagate changes back to the primary data source. If you set a custom template in a control during the Page_Load event, the text values of child controls in the custom template will be lost. Not supported for other textures. WebTo load the correct assembly, it's recommended to call the Load method by passing the long form of the assembly name. An Azure load balancer is a Layer-4 (TCP, UDP) load balancer that provides high availability by distributing incoming traffic among healthy VMs. It's important to note that all of the elements in the vector The DataSet isn't responsible for tracking changes in order to allow synchronization with the secondary data source. Exceptions XmlException There is a load or parse error in the XML. The XmlReader used to feed the XML data into the document. The URL can be either a local file or an HTTP URL (a Web address). WebLoad (String) Loads the XML document from the specified URL. Given these two hypothetical data sources, a user is likely to require one of the following behaviors: Initialize DataSet from a primary data source. Remarks This operation is not supported on the current platform. This file is in format. There is a set of screens provided and all are in .xaml extensions. The specified path is invalid (for example, it is on an unmapped drive). Returns Instead, the common language runtime tries to load the assembly into the calling application domain. -or-. After each result set, the Load method moves on to the next result set within the reader, until there are no more result sets. These values may be equivalent, or may be different if the data in the row has been changed since filling the DataTable. 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. 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. This method provides the same functionality, but allows you to load multiple result sets from an IDataReader into multiple tables within a DataSet. The URL can be either a local file or an HTTP URL (a Web address). You can use this event to perform tasks such as allocating resources used by the form. In each case, the description indicates the behavior when the primary key of a row in the incoming data matches the primary key of an existing row. Load columns as: Individual columns like Size and CurrentPrices in the HousingData class. When legacy CAS policy is not enabled, securityEvidence should be null. 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 final row (labeled "(Not present)") describes the behavior for incoming rows that don't match any existing row. Direct3D guarantees to return zero for any resource that is accessed out of bounds. The Load method consumes the first result set from the loaded IDataReader, and after successful completion, sets the reader's position to the next result set, if any. Exceptions XmlException There is a load or parse error in the XML. An Azure load balancer is a Layer-4 (TCP, UDP) load balancer that provides high availability by distributing incoming traffic among healthy VMs. Otherwise, the Load method uses the current version of the primary key field. The first is taken from a Windows Forms data binding application where Load is used to Reflecting on C++ executable files might throw a BadImageFormatException. The example then calls the Load method, displaying the data both before and after the load operation. 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. ; If you have a vector property, apply the VectorType attribute to the property in your data model. 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. To enable execution of code loaded from remote locations, you can use the configuration element. For information about how to obtain the fully qualified assembly name, see Assembly Names. (A partial name omits one or more of culture, version, or public key token. (The overload that doesn't allow you to specify the behavior uses the default load option.) WebLoad (Stream) Creates a new XDocument instance by using the specified stream. 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, Introduction to the ASP.NET Page Life Cycle. 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. Some information relates to prerelease product that may be substantially modified before its released. If a remote computer is specified, valid root keys are: HKLM and HKU. 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. 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. Here are two examples of using Load. This file must be created in advance by using the These issues, and more, are controlled by the loadOption parameter. Preserve changes and re-synchronize from the primary data source. It's important to note that all of the elements in the vector When an object is loaded, it is placed in memory, but isn't visible. The following table displays behavior for the Load method. A DataTable synchronizes or updates with a single primary data source. An IDataReader that provides one or more result sets. The example then adds tables to a DataSet and attempts to fill the tables with data from a DataTableReader. The Load method makes all these scenarios possible. The DataTable tracks changes, allowing synchronization with the primary data source. 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. Applies to See also Introduction to the ASP.NET Page Life Cycle Recommended content UpdatePanel (System.Web.UI) LinkButton (System.Web.UI.WebControls) Web Each cell in this table describes the current and original value for a field within a row, along with the DataRowState for the value after the Load method has completed. Loads an assembly given its AssemblyName. 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. The assembly is loaded into the application domain of the caller. Use the Show method to make the object visible. Here are two examples of using Load. ; Multiple columns at a time in the form of a vector like HistoricalPrices in the HousingData class. This method automatically detects the string format of the input XML (for example, UTF-8, ANSI, and so on). Load balancer supports both inbound and outbound scenarios. If the existing row and the incoming row contain corresponding primary key values, the row is processed using its current row state value, otherwise it's treated as a new row. An array of DataTable instances, from which the Load(IDataReader, LoadOption, FillErrorEventHandler, DataTable[]) method retrieves name and namespace information. The service simulates traffic for your applications, regardless of where they're hosted. Here are two examples of using Load. Microsoft makes no warranties, express or implied, with respect to the information provided here. To load the correct assembly, it's recommended to call the Load method by passing the long form of the assembly name. Please use an overload of Load which does not take an Evidence parameter. Some information relates to prerelease product that may be substantially modified before its released. If the DataSet already contains rows, the incoming data from the data source is merged with the existing rows. This is most likely caused by the C++ compiler stripping the relocation addresses or the .reloc section from your executable file. This method provides the same functionality, but allows you to load multiple result sets from an IDataReader into multiple tables within a DataSet. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. Load balancing aims to optimize resource use, maximize throughput, minimize response time, and avoid overloading any single resource. 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. With Azure Load Balancer, you can scale your applications and create highly available services. Microsoft makes no warranties, express or implied, with respect to the information provided here. This file must be created in advance by using the 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. Load object The object placeholder represents an object expression that evaluates to an object in the Applies To list. If you want validation to occur, you can create a validating XmlReader instance by using the XmlReaderSettings class and the Create method. Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback. If the debugger has not yet loaded DLLName .dll, it loads the DLL at this point if it is located in the current DLL search path. ; If you have a vector property, apply the VectorType attribute to the property in your data model. A byte array that is a COFF-based image containing an emitted assembly. This method should be used only to load an assembly into the current application domain. Updates the current and original versions of the row with the value of the incoming row. This applies to the .NET Framework version 1.1 Service Pack 1 (SP1) and subsequent releases. Parameters Object To load an extension DLL, you can do one of the following: Use the .load or .loadby command. Microsoft makes no warranties, express or implied, with respect to the information provided here. The operation is attempted on an unloaded application domain. The TextReader used to feed the XML data into the document. Occurs when the server control is loaded into the Page object. Returns XDocument An XDocument object that reads the data that is contained in the stream. The object that describes the assembly to be loaded. In this scenario, the user wants to initialize an empty DataSet with values from the primary data source. See . Set the property to false to indicate that you wish to halt processing. [in] A sampling index. The FillErrorEventArgs parameter supplies a Continue property: set this property to true to indicate that you have handled the error and wish to continue processing. Fills a DataSet with values from a data source using the supplied IDataReader. Be aware that setting the property to false causes the code that triggered the problem to throw an exception. Methods which use evidence to sandbox are obsolete and will be removed in a future release of the .NET Framework. Specifies the name and path of the file to be loaded. In the following example, UserForm2 is loaded during UserForm1's Initialize event. These scenarios describe standard usage for a DataTable, describing its update and merge behavior. See the documentation for the Load method for more information on using this parameter. The Load extension method works just like ToList except that it avoids the creation of the list altogether. With Azure Load Balancer, you can scale your applications and create highly available services. 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. Loads the assembly with a common object file format (COFF)-based image containing an emitted assembly, optionally including symbols for the assembly. Have questions or feedback about Office VBA or this documentation? The action may be applied to either the current or original version of each row, or both, depending on the current row state. The Load method makes all these scenarios possible. The errorHandler parameter is a FillErrorEventHandler delegate that refers to a procedure that is called when an error occurs while loading data. Incremental data feed from secondary data sources. ; Multiple columns at a time in the form of a vector like HistoricalPrices in the HousingData class. Do not use an AssemblyName with only the CodeBase property set. The techniques shown in this topic apply equally to models created with Code First and the EF Designer. Please use an overload of Load which does not take an Evidence parameter. For information about the disadvantages of using the load-from context, see the Assembly.LoadFrom method overload or Best Practices for Assembly Loading. 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. 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. The term load balancing refers to the distribution of workloads across multiple computing resources. Windows. The table below provides the details. The assemblies that are loaded into the two application domains might be different if the path settings for the two application domains are different. An array of strings, from which the Load method retrieves table name information. To load assemblies into other application domains, use a method such as CreateInstanceAndUnwrap. One or more DataTable's contents are modified. Loads an Assembly into this application domain. The display name of the assembly. An Azure load balancer is a Layer-4 (TCP, UDP) load balancer that provides high availability by distributing incoming traffic among healthy VMs. The raw bytes representing the symbols for the Assembly are also loaded. The following sample demonstrates the use of loading a raw assembly. Values in a DataColumn can be constrained through use of properties such as ReadOnly and AutoIncrement. A file that was found could not be loaded. If you call the Load 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. For more information, see the Remarks section of the XmlReader reference page. Call FindName with the name that you defined on the element. The Upsert option facilitates aggregating changes from one or more secondary data sources. It corresponds to the assembly's FullName property. Loads the Assembly with a common object file format (COFF) based image containing an emitted Assembly. Instead, the assembly is loaded using load-from rules. 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. Before you save the document, you must add a root level element, otherwise Save will throw an exception. Forms Assembly: System.Windows.Forms.dll Important Some information relates to prerelease product that may be substantially modified before its released. There are several scenarios where you may want to load entities from the database into the context without immediately doing anything with those entities.