To display the grid column editors in auto-generated form when switching grid item in edit mode (see the screenshot below), you simply need to change the MasterTableView EditMode property to EditForms.
| ASPX/ASCX |
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<rad:RadGrid id="RadGrid1" runat="server">
<MasterTableView AutoGenerateColumns="True" EditMode="EditForms" />
</rad:RadGrid> |
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Since version 4.0.3 Telerik RadGrid exposes MaxLength property for GridBoundColumn. Setting this property to integer value will limit the number of symbols which can be entered in the default textbox editor (when item is switched in edit mode). |
Relations between the edited item and the item in regular mode
When
EditForms editing is applied, the grid row is of type
GridDataItem in regular mode and
GridEditableItem in edit regime. Hence you can cast the item in the
ItemCreated event (for example) to those types according to its current mode:
| C# |
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private void RadGrid1_ItemCreated(object sender, Telerik.WebControls.GridItemEventArgs e)
{
if(e.Item is GridDataItem)
{
//the item is in regular mode
GridDataItem dataItem = e.Item as GridDataItem;
//do something here
}
else if (e.Item is GridEditableItem && e.Item.IsInEditMode)
{
//the item is in edit mode
GridEditableItem editedItem = e.Item as GridEditableItem;
//do something here
} |
}
| VB.NET |
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Private Sub RadGrid1_ItemCreated(ByVal sender As Object, ByVal e As Telerik.WebControls.GridItemEventArgs) Handles RadGrid1.ItemCreated
If (TypeOf e.Item is GridDataItem) Then
Dim dataItem As GridDataItem = CType(e.Item,GridDataItem)
ElseIf (TypeOf e.Item is GridEditableItem AndAlso e.Item.IsInEditMode) Then
Dim editedItem As GridEditableItem = CType(e.Item, GridEditableItem)
End If
End Sub |
Additionally, when the item is edited you can cast it to GridEditFormItem (class which extends the GridEditableItem class) in order to refer to the controls in it (through the EditFormCell property of the GridEditFormItem) or to the parent data item object (through the ParentItem property). This, however, can be done inside UpdateCommand/InsertCommand/ItemCommand handler (if needed):
| C# |
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if(e.Item is GridDataItem)
{
//find the edit form item
GridEditFormItem formItem = (e.Item as GridDataItem).EditFormItem as GridEditFormItem;
//get the cell which wraps the controls inside the edit form
TableCell cell = formItem.EditFormCell as TableCell;
}
if (e.Item is GridEditableItem)
{
//cast the item to GridEditFormItem
GridEditFormItem formItem = e.Item as GridEditFormItem;
//reference its parent data item
GridDataItem dataItem = formItem.ParentItem as GridDataItem;
} |
| VB.NET |
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If (TypeOf e.Item is GridDataItem) Then
Dim formItem As GridEditFormItem = CType(CType(e.Item,GridDataItem).EditFormItem,GridEditFormItem)
Dim cell As TableCell = CType(formItem.EditFormCell,TableCell)
End If
If (TypeOf e.Item is GridEditableItem) Then
Dim formItem As GridEditFormItem = CType(e.Item,GridEditFormItem)
Dim dataItem As GridDataItem = CType(formItem.ParentItem,GridDataItem)
End If |
Further information about how to reference controls inside grid rows/edit form you can find in this topic.
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The EditItems collection contains InPlace edit mode items. When you switch the edit type to EditForms, the EditItems collection holds the currently edited items but not their EditFormItems (which in this case hold the new values). If you would like your application to support both edit regimes when traversing the EditItems collection, you have to make the following modification inside the loop: |
| C# |
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foreach (GridDataItem item in RadGrid1.EditItems)
{
GridEditableItem itemToEdit =
(item.OwnerTableView.EditMode == GridEditMode.InPlace)?
(GridEditableItem)item : (GridEditableItem)item.EditFormItem;
//perform further operations
} |
| VB.NET |
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Dim item As GridDataItem
For Each item In RadGrid1.EditItems
Dim itemToEdit As GridEditableItem = (IIf item.OwnerTableView.EditMode = GridEditMode.InPlace Then CType(item, GridEditableItem) Else CType(item.EditFormItem, GridEditableItem))
Next item |