DataRepeaterItemValueEventArgs Class
Provides data for the ItemValueNeeded and ItemValuePushed events.
Namespace: Microsoft.VisualBasic.PowerPacks
Assembly: Microsoft.VisualBasic.PowerPacks.Vs (in Microsoft.VisualBasic.PowerPacks.Vs.dll)
Syntax
'Declaration
Public Class DataRepeaterItemValueEventArgs _
Inherits EventArgs
'Usage
Dim instance As DataRepeaterItemValueEventArgs
public class DataRepeaterItemValueEventArgs : EventArgs
public ref class DataRepeaterItemValueEventArgs : public EventArgs
public class DataRepeaterItemValueEventArgs extends EventArgs
Remarks
In virtual mode, use the ItemValueNeeded event to populate the child controls of the ItemTemplate with values from your data store when a DataRepeaterItem is displayed or when a new item is added.
Use the ItemValuePushed event to save changes to the child control values to your data store.
When the VirtualMode property is set to False, these events are not raised.
Examples
The following example demonstrates how to handle the ItemValueNeeded event. It assumes that you have a DataRepeater control named DataRepeater1 that has its VirtualMode property set to True. The code will resemble the following example, which is for a data source named Employees.
Private Sub DataRepeater1_ItemValueNeeded(ByVal sender As Object, _
ByVal e As _
Microsoft.VisualBasic.PowerPacks.DataRepeaterItemValueEventArgs) _
Handles DataRepeater1.ItemValueNeeded
If e.ItemIndex < Employees.Count Then
Select Case e.Control.Name
Case "txtFirstName"
e.Value = Employees.Item(e.ItemIndex + 1).firstName
Case "txtLastName"
e.Value = Employees.Item(e.ItemIndex + 1).lastName
End Select
End If
End Sub
private void dataRepeater1_ItemValueNeeded(object sender, Microsoft.VisualBasic.PowerPacks.DataRepeaterItemValueEventArgs e)
{
if (e.ItemIndex < Employees.Count)
{
switch (e.Control.Name)
{
case "txtFirstName":
e.Value = Employees[e.ItemIndex + 1].firstName;
break;
case "txtLastName":
e.Value = Employees[e.ItemIndex + 1].lastName;
break;
}
}
}
Inheritance Hierarchy
System.Object
System.EventArgs
Microsoft.VisualBasic.PowerPacks.DataRepeaterItemValueEventArgs
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
See Also
Reference
DataRepeaterItemValueEventArgs Members
Microsoft.VisualBasic.PowerPacks Namespace