如何从Radfreelist Updatecommand找到DatakeyValue?
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14-11-2019 - |
题
在我做更新时,我如何找到比喻?我已经尝试过一切...
Private Sub rtlAccounts_UpdateCommand(ByVal sender As Object, ByVal e As Telerik.Web.UI.TreeListCommandEventArgs) Handles rtlAccounts.UpdateCommand
Dim txtAccountDescription As RadTextBox = TryCast(e.Item.FindControl("txtAccountDescription"), RadTextBox)
Dim txtAdminName As RadTextBox = TryCast(e.Item.FindControl("txtAdminName"), RadTextBox)
Dim txtAdminEmail As RadTextBox = TryCast(e.Item.FindControl("txtAdminEmail"), RadTextBox)
Dim rcbStatus As RadComboBox = TryCast(e.Item.FindControl("rcbStatus"), RadComboBox)
Dim rntDocRetention As RadNumericTextBox = TryCast(e.Item.FindControl("rntDocRetention"), RadNumericTextBox)
Dim item As TreeListEditableItem = TryCast(e.Item, TreeListEditableItem)
Dim MyDataKeyID As String = 'Now what???
End Sub
.
还想知道如何从InsertCommand和UpdateCommand找到ParentDatakyValue。
解决方案
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>
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