Telerik文本选择

Question

我有一个telerik雷达栅格，如下面所示

| Username | Password   |
-------------------------
| A_user   | *****      |
| A_user2  | *****      |
| A_user3  | *****      |

当我点击其中一行时，它会显示点击行的密码，如下所示：

| Username | Password   |
-------------------------
| A_user   | *****      |
| A_user2  | A password |
| A_user3  | *****      |

这很好。我这样做是因为密码的解密是一个相当复杂和漫长的过程，所以一次解密一个密码不那么耗时，尤其是当用户不需要所有密码时。

当我显示密码时，我希望能够在网格中选择密码来复制它。不幸的是，radgrid将再次触发"RowClick"项命令，并且该行将被取消选择。因此，我无法复制密码。

我的问题是：在某些情况下，有没有办法取消radgrid的itemcommand我希望能够在密码已经解密时禁用itemcommand事件。

提前感谢！

编辑：我想我还应该提到的是，当网格加载时，我使用radajaxloadingpanel在网格上显示动画。即使itemcommand方法什么都不做，也会显示ajaxloadingpanel，并且我试图高亮显示的文本会被取消选择。

更多编辑：

这是我的雷达网格代码

<telerik:RadGrid id="radGridAccounts" runat="server" Width="99%" PageSize="20" AllowPaging="true" AllowSorting="true" 
                        AllowFilteringByColumn="True" ShowStatusBar="true" EnableLinqExpressions="False" GridLines="None"
                        AllowMultiRowSelection="false">
                        <ClientSettings EnableRowHoverStyle="true" EnablePostBackOnRowClick="true" AllowKeyboardNavigation="false">
                            <Selecting AllowRowSelect="True" />
                            <KeyboardNavigationSettings EnableKeyboardShortcuts="false" />
                        </ClientSettings>
        <PagerStyle Mode="NextPrevAndNumeric" PagerTextFormat=""/>
        <MasterTableView AutoGenerateColumns="False" EditMode="InPlace" CommandItemDisplay="Top"
                            InsertItemDisplay="Top" AllowFilteringByColumn="True" NoMasterRecordsText="Aucun compte"
                            InsertItemPageIndexAction="ShowItemOnCurrentPage" DataKeyNames="USERN" >

        <Columns>
        <%--Username--%>
        <telerik:GridBoundColumn UniqueName="USERN" DataField="USERN" HeaderText="Username" 
                                    AllowFiltering="true" ColumnEditorID="radUsernameEditor"/>
        <%--Password--%>
        <telerik:GridBoundColumn UniqueName="PASWR" DataField="PASWR" HeaderText="Password"
                                    AllowFiltering="false" ColumnEditorID="radPasswordEditor" />
        <%--Edit--%>
        <telerik:GridEditCommandColumn ButtonType="ImageButton"
                                    InsertImageUrl=".Imagesok.gif" UpdateImageUrl=".Imagesok.gif" CancelImageUrl=".Imagescancel.gif" />
        <%--Delete--%>
        <telerik:GridButtonColumn ButtonType="ImageButton" CommandName="Delete" Text="Delete" 
                                ImageUrl=".Imagesdelete.gif" />
        </Columns>
    <CommandItemSettings AddNewRecordText="" RefreshText="" />
    </MasterTableView>
</telerik:RadGrid>

我的ItemCommand代码：

Protected Sub radGridAccounts_ItemCommand(ByVal sender As Object, ByVal e As Telerik.Web.UI.GridCommandEventArgs) Handles radGridAccounts.ItemCommand
Try
    If (e.CommandName = "RowClick" AndAlso TypeOf e.Item Is GridDataItem) Then
        e.Item.Selected = True
        For Each item As GridDataItem In radGridAccounts.Items
            If Not item.IsInEditMode Then
                If item.Selected Then
                    'Decrypt the password method
                Else 
                    item.Cells(4).Text = "*****"
                End If
            End If
        Next
    End If
Catch ex As Exception
    DisplayMessage("Error : " & ex.Message, MessageType.Err)
End Try
End Sub

Answer 1

切换到radGrid上的OnSelectedIndexChanged函数，将当前选定的行存储在客户端变量中，并处理rowSelected客户端事件，取消或允许回发，还添加要使用的ClientDataKeyName。

<telerik:RadGrid id="radGridAccounts" runat="server" Width="99%" PageSize="20" AllowPaging="true" AllowSorting="true"  OnSelectedIndexChanged="RadGridAccounts_SelectedIndexChanged"
                        AllowFilteringByColumn="True" ShowStatusBar="true" EnableLinqExpressions="False" GridLines="None"
                        AllowMultiRowSelection="false">
                        <ClientSettings EnableRowHoverStyle="true" EnablePostBackOnRowClick="true" EnableAllowKeyboardNavigation="false">
                            <Selecting AllowRowSelect="True" />
                            <KeyboardNavigationSettings EnableKeyboardShortcuts="false" />
     <ClientEvents OnRowSelected="rowSelected" />
    </ClientSettings>
        <PagerStyle Mode="NextPrevAndNumeric" PagerTextFormat=""/>
        <MasterTableView AutoGenerateColumns="False" EditMode="InPlace" CommandItemDisplay="Top"
                            InsertItemDisplay="Top" AllowFilteringByColumn="True" NoMasterRecordsText="Aucun compte"
                            InsertItemPageIndexAction="ShowItemOnCurrentPage" DataKeyNames="USERN" ClientDataKeyNames="USERN" >

        <Columns>
         ...
        </Columns>
    <CommandItemSettings AddNewRecordText="" RefreshText="" />
    </MasterTableView>
</telerik:RadGrid>

 <script type="text/javascript">
 var selectedUserName;//global js var 
  function rowSelected(senders, args) 
  {
        //get the ClientDataKeyName
        var rowUserName= args.getDataKeyValue("USERN");
        if(selectedUserName == rowUserName){
              args.set_cancel(true);//cancel the postback
        }   
  }
 </script>

然后在服务器端：

  protected void RadGridAccounts_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (RadGridAccounts.SelectedItems == null || RadGridAccounts.SelectedItems.Count == 0)
            return;
        var dataItem = RadGridAccounts.SelectedItems[0] as GridDataItem;
        if (dataItem != null)
        {
           //do the password look up 
        }
    }