DataViewExtensionBase.BindToEF(String, String, EventHandler<LinqServerModeDataSourceSelectEventArgs>, EventHandler<ServerModeExceptionThrownEventArgs>) Method

Binds the DataView to a data source via the Entity Framework.

Namespace: DevExpress.Web.Mvc

Assembly: DevExpress.Web.Mvc5.v18.2.dll

Declaration

C#

public DataViewExtensionBase BindToEF(
    string contextTypeName,
    string tableName,
    EventHandler<LinqServerModeDataSourceSelectEventArgs> selectingMethod,
    EventHandler<ServerModeExceptionThrownEventArgs> exceptionThrownMethod
)

VB.NET

Public Function BindToEF(
    contextTypeName As String,
    tableName As String,
    selectingMethod As EventHandler(Of LinqServerModeDataSourceSelectEventArgs),
    exceptionThrownMethod As EventHandler(Of ServerModeExceptionThrownEventArgs)
) As DataViewExtensionBase

Parameters

Name	Type	Description
contextTypeName	String	A String object representing the DataContext type name.
tableName	String	A String object specifying the table name.
selectingMethod	EventHandler<LinqServerModeDataSourceSelectEventArgs>	A method to which selection logic is delegated.
exceptionThrownMethod	EventHandler<ServerModeExceptionThrownEventArgs>	A delegate method that allows catching unhandled/CLR exceptions that appear.

Returns

Type	Description
DataViewExtensionBase	A DataViewExtensionBase object representing the DataView extension.

Remarks

Example

The code sample below demonstrates how to catch the internal exception thrown when binding the DataView to an EF data provider.

View code (Razor):

C#

@Html.DevExpress().DataView(settings => {
    // DataView settings
}).BindToEF(string.Empty, string.Empty, (s, e) => {
    // Specify queryable source
    var dataContext = new MyProject.Models.MyDatabaseDataContext();
    e.QueryableSource = dataContext.Customers;
    e.KeyExpression = "Id";
}, (s, e) => {
    // Handle internal exception
    ViewContext.Writer.Write(e.Exception.Message + Environment.NewLine + e.Exception.StackTrace);
}).GetHtml()