渲染usercontrol后，用户控件的gridview内的链接按钮未触发 [英] link button inside gridview of user control is not firing after rendering usercontrol

问题描述

我在用户控件的gridview中有一个链接按钮，当我在我的aspx页面上呈现该用户控件时，链接按钮没有触发，它隐藏了我的usercontrol并重定向到我的aspx页面



用户控制（.ascx）

I have a link button inside gridview of user control when i render that user control on my aspx page that link button is not firing and its hide my usercontrol and redirect to my aspx page

User Control(.ascx)

<asp:Panel ID="pnlRecommend" runat="server" ScrollBars="Auto" style="width:440px;height:200px; overflow-x: hidden">

<asp:GridView ID="gridCommunicaiton" runat="server" AutoGenerateColumns="false" GridLines="None" EnableViewState="false"

        AlternatingRowStyle-CssClass="odd" RowStyle-CssClass="even" Width="440px" Style="color: Black">
        <HeaderStyle CssClass="gridHeader" HorizontalAlign="Left" />
        <Columns>
            <asp:TemplateField HeaderText="Date" HeaderStyle-HorizontalAlign="Center" ItemStyle-HorizontalAlign="Left">
                <ItemTemplate>
                    <asp:Label ID="lblDate" runat="server" Text='<%# Eval("EXFB_DATE") %>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateField HeaderText="Comments" HeaderStyle-HorizontalAlign="Left" ItemStyle-HorizontalAlign="Left">
                <ItemTemplate>
                    <asp:Label ID="lblComments" runat="server" Text='<%# Eval("EXFB_COMMENT") %>'></asp:Label>
                    <asp:LinkButton ID="ReadMoreLinkButton" runat="server" Text="More" CommandArgument='<%#Eval("EXFB_EXMN_ID")%>'

                       CommandName="EditRow" > </asp:LinkButton>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
    </asp:GridView>


                     </asp:Panel>

用户控制（.ascx.vb）

受保护的子Page_Load（ByVal sender As Object，ByVal e As System.EventArgs）处理Me.Load

BindData（）

每行在gridCommunicaiton.Rows中

Dim ReadMoreLinkBut​​ton As LinkBut​​ton = CType（row.FindControl（ReadMoreLinkBut​​ton），LinkBut​​ton）

AddHandler ReadMoreLinkBut​​ton.Click，AddressOf ReadMoreLinkBut​​ton_Click

Next

End Sub



Public Sub BindData（）

LoadgridCommunicaiton（）

结束子



P rivate Sub LoadgridCommunicaiton（）

Dim dtList As DataTable = clsCommon.ListRecommendation（clsAuth.GetEXTMID）

如果dtList.Rows.Count> 0然后

gridCommunicaiton.DataSource = dtList

gridCommunicaiton.DataBind（）

gridCommunicaiton.Visible = True

divNorecords .Visible = False

否则

divNorecords.Visible = True

gridCommunicaiton.Visible = False

结束如果< br $>


结束子



#RegionButton_Click

受保护的Sub ReadMoreLinkBut​​ton_Click（ ByVal sender As Object，ByVal e As CommandEventArgs）



Dim strExfbID As String

strExfbID = e.CommandArgument.ToString

Dim ExfbID As String = clswpDashBoard.GetEXMNID（strExfbID）

hdnVal.Value = ExfbID

Dim nvc As New NameValueCollection

nvc。添加（intExfbId，hdnVal.Value）

nvc.Add（isRedirect，True）

clsCommon.RedirectTo页面（wfEXMN.aspx，nvc）

结束次级

#End Region

结束班级



.aspx Page



< webmethod（）> _

公共共享功能结果（controlName As String）As String

返回结果（controlName）

结束功能





公共共享功能结果（controlName As String）字符串

尝试

Dim page As New Page （）

Dim userControl As UserControl = DirectCast（page.LoadControl（controlName），UserControl）

userControl.EnableViewState = False

Dim form As新的HtmlForm（）

form.Controls.Add（userControl）

page.Controls.Add（表格）



Dim textWriter As New StringWriter（）

HttpContext.Current.Server.Execute（page，textWriter，False）

返回textWriter.ToString（）

Catch ex As Exception

返回ex.ToString（）

结束尝试

结束函数

User Control(.ascx.vb)
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
BindData()
For Each row In gridCommunicaiton.Rows
Dim ReadMoreLinkButton As LinkButton = CType(row.FindControl("ReadMoreLinkButton"), LinkButton)
AddHandler ReadMoreLinkButton.Click, AddressOf ReadMoreLinkButton_Click
Next
End Sub

Public Sub BindData()
LoadgridCommunicaiton()
End Sub

Private Sub LoadgridCommunicaiton()
Dim dtList As DataTable = clsCommon.ListRecommendation(clsAuth.GetEXTMID)
If dtList.Rows.Count > 0 Then
gridCommunicaiton.DataSource = dtList
gridCommunicaiton.DataBind()
gridCommunicaiton.Visible = True
divNorecords.Visible = False
Else
divNorecords.Visible = True
gridCommunicaiton.Visible = False
End If

End Sub

#Region "Button_Click"
Protected Sub ReadMoreLinkButton_Click(ByVal sender As Object, ByVal e As CommandEventArgs)

Dim strExfbID As String
strExfbID = e.CommandArgument.ToString
Dim ExfbID As String = clswpDashBoard.GetEXMNID(strExfbID)
hdnVal.Value = ExfbID
Dim nvc As New NameValueCollection
nvc.Add("intExfbId", hdnVal.Value)
nvc.Add("isRedirect", True)
clsCommon.RedirectToPage("wfEXMN.aspx", nvc)
End Sub
#End Region
End Class

.aspx Page

<webmethod()> _
Public Shared Function Result(controlName As String) As String
Return Results(controlName)
End Function


Public Shared Function Results(controlName As String) As String
Try
Dim page As New Page()
Dim userControl As UserControl = DirectCast(page.LoadControl(controlName), UserControl)
userControl.EnableViewState = False
Dim form As New HtmlForm()
form.Controls.Add(userControl)
page.Controls.Add(form)

Dim textWriter As New StringWriter()
HttpContext.Current.Server.Execute(page, textWriter, False)
Return textWriter.ToString()
Catch ex As Exception
Return ex.ToString()
End Try
End Function

推荐答案

尝试在网格的RowCommand事件中捕获事件。

Try capturing the event within the grid's RowCommand event.

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