LinqDataSourceInsertEventArgs Class
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LinqDataSourceInsertEventArgs Class


Provides data for the Inserting event.

Namespace:   System.Web.UI.WebControls
Assembly:  System.Web.Extensions (in System.Web.Extensions.dll)


public class LinqDataSourceInsertEventArgs : CancelEventArgs


Initializes a new instance of the LinqDataSourceInsertEventArgs class and specifies the provided exception.


Initializes a new instance of the LinqDataSourceInsertEventArgs class.


Gets or sets a value indicating whether the event should be canceled.(Inherited from CancelEventArgs.)


Gets the exception that was thrown while the data was being validated before the insert operation.


Gets or sets a value that indicates whether the exception was handled and that it should not be thrown again.


Gets the object that contains the data to insert.


Determines whether the specified object is equal to the current object.(Inherited from Object.)


Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)


Serves as the default hash function. (Inherited from Object.)


Gets the Type of the current instance.(Inherited from Object.)


Creates a shallow copy of the current Object.(Inherited from Object.)


Returns a string that represents the current object.(Inherited from Object.)

The LinqDataSourceInsertEventArgs object is passed to any event handler for the Inserting event. The NewObject property contains the data that will be inserted.

You can use the LinqDataSourceInsertEventArgs object to examine the data before the insert operation is executed in the data source. You can then validate the data, examine validation errors from the data class, or change a value before the update. You can also cancel the insert operation.

If the object that represents the data source throws a validation exception before it inserts the data, the Exception property contains an instance of the LinqDataSourceValidationException class. You can retrieve all the validation exceptions through the InnerExceptions property. If no validation exception is thrown, the Exception property contains null. If you handle the validation exceptions and do not want the exception to be re-thrown, set the ExceptionHandled property to true.

The following example shows a handler for the Inserting event. The object from the NewObject property is cast to a type named Product. The DateModified property of the Product object is set to the current date and time.

protected void LinqDataSource_Inserting(object sender, LinqDataSourceInsertEventArgs e)
    Product product = (Product)e.NewObject;
    product.DateModified = DateTime.Now;

The following example shows an event handler for the Inserting event. It displays any validation exception messages by using a Label control.

Protected Sub LinqDataSource_Inserting(ByVal sender As Object, _
        ByVal e As LinqDataSourceInsertEventArgs)
    If (e.Exception IsNot Nothing) Then
        For Each innerException As KeyValuePair(Of String, Exception) _
               In e.Exception.InnerExceptions
            Label1.Text &= innerException.Key & ": " & _
                innerException.Value.Message + "<br />"
        e.ExceptionHandled = True
    End If
End Sub


protected void LinqDataSource_Inserting(object sender, 
        LinqDataSourceInsertEventArgs e)
    if (e.Exception != null)
        foreach (KeyValuePair<string, Exception> innerException in 
        Label1.Text += innerException.Key + ": " + 
            innerException.Value.Message + "<br />";
        e.ExceptionHandled = true;

.NET Framework
Available since 3.5

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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