See http://go.microsoft.com/fwlink/?LinkID=155570 for more information. With Azure Load Balancer, you can scale your applications and create highly available services. This applies to the .NET Framework version 1.1 Service Pack 1 (SP1) and subsequent releases. Given these two hypothetical data sources, a user is likely to require one of the following behaviors: Initialize DataSet from a primary data source. The LoadOption parameter is used for determining the specific version of the row that is to be used for primary key comparison. 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). WebThe Load method provides a technique for filling a single DataTable with data, retrieved from an IDataReader instance. The assembly is loaded into the application domain of the caller. The DataSet isn't responsible for tracking changes in order to allow synchronization with the secondary data source. WebLoad-balancing options. The object that describes the assembly to be loaded. WebThis occurs because the form values have already been loaded. The expression should return true to load and false to unload the element. 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. The first is taken from a Windows Forms data binding application where Load is used to In this scenario, the user wants to merge changes from one or more secondary data sources, and propagate those changes back to the primary data source. 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. A FillErrorEventHandler delegate to call when an error occurs while loading data. These values may be equivalent, or may be different if the data in the row has been changed since filling the DataTable. Parameters Object 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. This method provides the same functionality, but allows you to load multiple result sets from an IDataReader into multiple tables within a DataSet. Later the user intends to propagate changes back to the primary data source. An assembly or module was loaded twice with two different evidences. Preserve changes and re-synchronize from the primary data source. The Load extension method works just like ToList except that it avoids the creation of the list altogether. Load balancing aims to optimize resource use, maximize throughput, minimize response time, and avoid overloading any single resource. [in] An optional offset applied to the texture coordinates before sampling. An I/O error occurred while opening the file. The example then calls the Load method, displaying the data both before and after the load operation. Azure Load Testing Preview is a fully managed load-testing service that enables you to generate high-scale load. When legacy CAS policy is not enabled, securityEvidence should be null. Firstly, I want to load a Main Screen file from 'C:\MainScreen.xaml'. 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. See http://go.microsoft.com/fwlink/?LinkID=155570 for more information. The errorHandler parameter is a FillErrorEventHandler delegate that refers to a procedure that is called when an error occurs while loading data. 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. Version 2.0 or later of the common language runtime is currently loaded and assemblyRef was compiled with a later version. A DataTable synchronizes or updates with a single primary data source. The final row (labeled "(Not present)") describes the behavior for incoming rows that don't match any existing row. A load balancer health probe monitors a given port on each VM and only distributes traffic to an operational VM. Windows. In this scenario, the user wants to initialize an empty DataTable with values from the primary data source. 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. Version 2.0 or later of the common language runtime is currently loaded and assemblyString was compiled with a later version. Remarks typeX denotes that there are four possible types: int, int2, int3 or int4. The raw bytes representing the symbols for the Assembly are also loaded. Loads the XML document from the specified stream. 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. Pieces of evidence supplied as an argument to the Load method supersede pieces of evidence supplied by the loader. This applies to the .NET Framework version 1.1 Service Pack 1 (SP1) and subsequent releases. The URL can be either a local file or an HTTP URL (a Web address). After this file is loaded successfully, I consider to use inside to load another screen from 'C:\SubScreens\Screen1.xaml'. C# public virtual void Load (string filename); Parameters filename String URL for the file containing the XML document to load. If you need to use a XmlDocument object to work with XML, you can use the XmlTextReader object to create one. 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 ). typeX denotes that there are four possible types: int, int2, int3 or int4. 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. Returns XDocument An XDocument object that reads the data that is contained in the stream. Using partial names has a negative effect on performance. The URL can be either a local file or an HTTP URL (a Web address). WebTo load the correct assembly, it's recommended to call the Load method by passing the long form of the assembly name. If the registry key name contains a space, enclose the key name in quotes. When you use a Load method with a Byte[] parameter and Evidence to load a COFF image, only the supplied evidence is used. 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. SampleIndex must always be specified first with multi-sample textures. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. WebLoad (Stream) Creates a new XDocument instance by using the specified stream. For information about how to obtain the fully qualified assembly name, see Assembly Names. This partial code example is from the Paint.fx file in the AdvancedParticles Sample. More info about Internet Explorer and Microsoft Edge, Load(Byte[], Byte[], SecurityContextSource), http://go.microsoft.com/fwlink/?LinkID=155570. These scenarios describe standard usage for a DataTable, describing its update and merge behavior. Execute an extension by issuing the full !DLLName.ExtensionCommand syntax. 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. 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. This method automatically detects the string format of the input XML (for example, UTF-8, ANSI, and so on). The assembly is loaded into the domain of the caller using the supplied evidence. Exceptions XmlException There is a load or parse error in the XML. These issues, and more, are controlled by the loadOption parameter. 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. Here are two examples of using Load. The loader does not continue probing for other assemblies that match the simple name. The read only constraint on a DataColumn is applicable only for changes that occur in memory. The output is displayed in the console window. Here are two examples of using Load. Microsoft makes no warranties, express or implied, with respect to the information provided here. A texture-object type (except TextureCube or TextureCubeArray). This file must be created in advance by using the Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support. If the file is not found, CodeBase is used to search for the assembly. 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. The following example demonstrates several of the issues involved with calling the Load method. A DataSet synchronizes or updates with a single primary data source. Fills a DataSet with values from a data source using the supplied IDataReader, using an array of DataTable instances to supply the schema and namespace information. The name resolution scheme for this method is the same as that followed by the Fill method of the DbDataAdapter class. Let me explain it again. 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. WebLoad-balancing options. An array of DataTable instances, from which the Load(IDataReader, LoadOption, FillErrorEventHandler, DataTable[]) method retrieves name and namespace information. For example, "ProcessorArchitecture=msil". Loading Elements There are several different ways to load the elements: Use an x:Bind expression to specify the load state. Loads the XML document from the specified TextReader. The following example instantiates an AssemblyName object and uses it to load the sysglobal.dll assembly. 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. If you want validation to occur, you can create a validating XmlReader instance by using the XmlReaderSettings class and the Create method. An array of strings, from which the Load method retrieves table name information. If a remote computer is specified, valid root keys are: HKLM and HKU. Specifies the name and path of the file to be loaded. Execute an extension by issuing the full !DLLName.ExtensionCommand syntax. Developers, testers, and quality assurance (QA) engineers can use it to optimize application performance, scalability, or capacity. To enable execution of code loaded from remote locations, you can use the configuration element. 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. WebLoad-balancing options. Remarks When an object is loaded, it is placed in memory, but isn't visible. In this method call, the specified LoadOption parameter influences the processing of the incoming data. To enable execution of code loaded from remote locations, you can use the configuration element. ; Multiple columns at a time in the form of a vector like HistoricalPrices in the HousingData class. See the documentation for the DataTableLoad method for more information on using this parameter. Next steps. In addition, a DataSet can accept incremental data from one or more secondary data sources. Use the Show method to make the object visible. Microsoft makes no warranties, express or implied, with respect to the information provided here. In the .NET Framework version 2.0, processor architecture is added to assembly identity, and can be specified as part of assembly name strings. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. Instead, the common language runtime tries to load the assembly into the calling application domain. Fills a DataTable with values from a data source using the supplied IDataReader. WebLoad (Stream) Creates a new XDocument instance by using the specified stream. WebLoad (String) Loads the XML document from the specified URL. If the DataTable already contains rows, the incoming data from the data source is merged with the existing rows according to the value of the loadOption parameter. The loader does not continue probing for other assemblies that match the simple name. To preserve the .reloc address for your C++ executable file, specify /fixed:no when you are linking. 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.) The errorHandler parameter is a FillErrorEventHandler delegate that refers to a procedure that is called when an error occurs while loading data. Updates the current and original versions of the row with the value of the incoming row. 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 Microsoft makes no warranties, express or implied, with respect to the information provided here. 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. This method is obsolete and will be removed in a future release of the .NET Framework. The evidence that first succeeds is the evidence that is used. The action may be applied to either the current or original version of each row, or both, depending on the current row state. Valid root keys for the local computer are: HKLM, HKCU, HKCR, HKU, and HKCC. Otherwise, the Load method uses the current version of the primary key field. WebLoad Event Reference Feedback Definition Namespace: System. 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. 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. The default namespace associated with DataSet, if any, is associated with each newly created DataTable. Load columns as: Individual columns like Size and CurrentPrices in the HousingData class. WebThis occurs because the form values have already been loaded. 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. To load an extension DLL, you can do one of the following: Use the .load or .loadby command. The first is taken from a Windows Forms data binding application where Load is used to 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 following table describes the three load options provided by the LoadOption enumeration. 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.
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