如何从RadTreeList UpdateCommand中找到DataKeyValue？

发布于 2024-11-08 02:21:59 字数 920 浏览 1 评论 0原文

当我进行更新时，我到底如何找到 DataKey？我已经尝试了一切...

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 中找到 ParentDataKeyValue 。

原文

How on earth do I find the DataKey when I'm doing an update? I've tried everything...

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

Also would like to know how to find the ParentDataKeyValue from an InsertCommand and the UpdateCommand as well.

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蓝礼 2024-11-15 02:21:59

要获取 DataKeyValue 和 ParentDataKeyValue，请将最后两行更改为以下内容：

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 的文档，如果您使用 InPlace 编辑模式，您应该将 TreeListEditableItem 转换为TreeListDataItem;如果您使用 EditForms，则应将 TreeListEditableItem 转换为 TreeListEditFormItem。

为了让 GetDataKeyValue 和 GetParentDataKeyValue 返回您想要的值，您必须在定义 RadTreeList 时在各自的 DataKeyNames 和 ParentDataKeyNames 值中设置它们：

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

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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