在更新面板的存在下,下载选项无法正常工作 - 需要正确的解决方案 [英] Download option is not working in the presence of Update panel - need proper solution
问题描述
我有一个用于下载文件的链接按钮,该文件放在 Telerik RadGrid
中。在同一页面我有另一个网格和更新面板。在初始时间一切正常,我能够下载文件。但当我执行除此页面下载以外的任何其他操作时,下载选项无法正常工作。
经过一些研究后,我已应用以下代码,但它不会给预期结果:
Dim lnk As LinkButton = Nothing
lnk = DirectCast (e。 Item.FindControl( lnkdwnload),LinkButton)
如果 lnk IsNot 没什么 那么
ScriptManager.GetCurrent( Me )。RegisterPostBackControl(lnk)
End 如果
如果我运行相同而没有更新面板那么一切工作太棒了这实际上是什么问题?为什么它不起作用?
你好,
下面的代码对我有用。
试试在aspx页面中使用下面的代码,
< asp:linkbutton runat =serverid =lnkDownloadcommandname =DELETEondatabinding =lnkDownload_DataBindingxmlns:asp =#unknown>< / asp:linkbutton>
并在aspx中使用以下代码.vb
受保护的 Sub lnkDownload_DataBinding(sender As Object ,e 作为 EventArgs)
Dim lnkDownload As LinkButton = DirectCast (sender,LinkButton)
ToolkitScriptManager1.RegisterPostBackControl(lnkDownload)
结束 子跨度>
I have a Link button for download a file, which is placed inside a Telerik RadGrid
. in the same page i have another one grid and update pannel. for the initial time everything works fine and am able to download the file. but when i perform any other operation other than download in this page then download option is not working.
After some research i had applied the following code, but it wont give the expected result:
Dim lnk As LinkButton = Nothing
lnk = DirectCast(e.Item.FindControl("lnkdwnload"), LinkButton)
If lnk IsNot Nothing Then
ScriptManager.GetCurrent(Me).RegisterPostBackControl(lnk)
End If
If i run the same without update panel then everything works great. what is actually the problem here? why it is not working?
Hello,
Below code is work for me.
Try to use below code in aspx page,
<asp:linkbutton runat="server" id="lnkDownload" commandname="DELETE" ondatabinding="lnkDownload_DataBinding" xmlns:asp="#unknown"></asp:linkbutton>
and use below code in aspx.vb
Protected Sub lnkDownload_DataBinding(sender As Object, e As EventArgs) Dim lnkDownload As LinkButton = DirectCast(sender, LinkButton) ToolkitScriptManager1.RegisterPostBackControl(lnkDownload) End Sub
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