كيفية العثور على DatakeyValue من updereist updatecommand؟

Question

كيف يمكنني العثور على Datakey عند إجراء تحديث؟لقد جربت كل شيء ... giveacodicetagpre.

ترغب أيضا في معرفة كيفية العثور على ParentDatakeyValue من InsertCommand و UpdateCommand أيضا.

Answer 1

To get the DataKeyValue and the ParentDataKeyValue, change your last two lines to the following:

Dim editedItem As TreeListEditFormItem = CType(e.Item, TreeListEditFormItem)
Dim dataKeyValue As String = _
    editedItem.ParentItem.GetDataKeyValue("EmployeeID").ToString()
Dim parentDataKeyValue As String = _
    editedItem.ParentItem.GetParentDataKeyValue("ReportsTo").ToString()

Per Telerik's documentation, if you are using InPlace edit mode you should cast the TreeListEditableItem to a TreeListDataItem; if you are using EditForms you should cast the TreeListEditableItem to a TreeListEditFormItem.

In order for GetDataKeyValue and GetParentDataKeyValue to return the values you want, you must set them in the respective DataKeyNames and ParentDataKeyNames values when defining a RadTreeList:

<telerik:RadTreeList ID="EmployeeTreeList" runat="server" 
    DataKeyNames="EmployeeID" 
    ParentDataKeyNames="ReportsTo">
    <Columns>
        <%-- Add column definitions here --%>
    </Columns>
</telerik:RadTreeList>