Enabling a behavior at runtime is simple; you only need to call the generic CreateBehavior method. This method requires a specific behavior type. It creates the behavior and adds it to the Behaviors collection. Every behavior has a class that represents the type of behavior (e.g., Selection ).
The following table lists the behaviors and their corresponding classes.
WebDataGrid™ provides read-only properties of the same name as the classes previously listed so that you can conveniently access a behavior once you have added it to the behaviors collection.
The following code shows how to add the selection behavior to WebDataGrid using the CreateBehavior method. It also shows the equivalent code if you decide to create a behavior and add it manually.
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Note
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Note:
As with adding controls dynamically, if you create a behavior manually, make sure you add the behavior to the Behaviors collection before setting its properties in order to keep those settings in ViewState.
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Dim gridSelection As Selection = Me.WebDataGrid1.Behaviors.CreateBehavior(Of Selection)()
gridSelection.CellClickAction = CellClickAction.Row
gridSelection.RowSelectType = SelectType.Multiple
' THE EQUIVALENT CODE IS SHOWN BELOW
' To get reference to a behavior, use its property of the same name
Dim selectionBehavior As Selection = Me.WebDataGrid1.Behaviors.Selection
' Check if behavior does not exist
If selectionBehavior Is Nothing Then
' Create the behavior
Dim selection As New Selection()
' Add to behaviors collection first before setting its properties
Me.WebDataGrid1.Behaviors.Add(selection)
' Set its options
selection.CellClickAction = CellClickAction.Row
selection.RowSelectType = SelectType.Multiple
End If
Selection gridSelection = this.WebDataGrid1.Behaviors.CreateBehavior<Selection>();
gridSelection.CellClickAction = CellClickAction.Row;
gridSelection.RowSelectType = SelectType.Multiple;
// THE EQUIVALENT CODE IS SHOWN BELOW
// To get reference to a behavior, use its property of the same name
Selection selectionBehavior = this.WebDataGrid1.Behaviors.Selection;
// Check if behavior does not exist
if (selectionBehavior == null)
{
// Create the behavior
Selection selection = new Selection();
// Add to behaviors collection
this.WebDataGrid1.Behaviors.Add(selection);
// Set its options
selection.CellClickAction = CellClickAction.Row;
selection.RowSelectType = SelectType.Multiple;
}
