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)

Inheritance Hierarchy



public class DataRepeaterItemValueEventArgs : EventArgs
public ref class DataRepeaterItemValueEventArgs : EventArgs
type DataRepeaterItemValueEventArgs = 
        inherit EventArgs
Public Class DataRepeaterItemValueEventArgs
    Inherits EventArgs


Name Description
System_CAPS_pubmethod DataRepeaterItemValueEventArgs(Int32, Control, String, Object)

Initializes a new instance of the DataRepeaterItemValueEventArgs class.


Name Description
System_CAPS_pubproperty Control

Gets the child control of a DataRepeaterItem that is raising the ItemValueNeeded or ItemValuePushed event.

System_CAPS_pubproperty ItemIndex

Gets the index of the DataRepeaterItem that contains the control that is raising the ItemValueNeeded or ItemValuePushed event.

System_CAPS_pubproperty PropertyName

Gets the name of the data-bound property of the control that is raising a ItemValueNeeded or ItemValuePushed event.

System_CAPS_pubproperty Value

Gets the property value that has changed to raise a ItemValueNeeded or ItemValuePushed event.


Name Description
System_CAPS_pubmethod Equals(Object)

(Inherited from Object.)

System_CAPS_protmethod Finalize()

(Inherited from Object.)

System_CAPS_pubmethod GetHashCode()

(Inherited from Object.)

System_CAPS_pubmethod GetType()

(Inherited from Object.)

System_CAPS_protmethod MemberwiseClone()

(Inherited from Object.)

System_CAPS_pubmethod ToString()

(Inherited from Object.)


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.


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 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;
            case "txtLastName":
                e.Value = Employees[e.ItemIndex + 1].lastName;
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

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

Microsoft.VisualBasic.PowerPacks Namespace
Introduction to the DataRepeater Control (Visual Studio)
Virtual Mode in the DataRepeater Control (Visual Studio)

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