Pass values from gridview linkbutton to controls inside popup extender

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Hi
I have a linkbutton that is suppose to passes a value to a textbox,the textbox and the linkbutton are both inside a gridview . When i click the linkbutton a popup extender is executed with my textbox. Now i tried to find the textbox but stil its empty.

How can i do this?

Below is my gridview

XML

<asp:GridView  ID="grdAvailableStaff"  runat="server"  CellPadding="4"  EnableViewState="true"
               AllowPaging="True"
                PageSize="5"
               Width="423px" onrowdatabound="grdAvailableStaff_RowCreated"
               ForeColor="#333333" GridLines="None" Height="16px" DataKeyNames="FullName"

               ShowHeaderWhenEmpty="True"
                onpageindexchanging="grdAvailableStuff_PageIndexChanging"
                EmptyDataText="No Appointment Slots Created" >

               <AlternatingRowStyle BackColor="White" />

               <Columns >

              <asp:TemplateField HeaderText="Create Appointment">

            <ItemTemplate>
                <asp:LinkButton ID="createAppointment" runat="server"  OnClick="createAppointment_Click" PostBackUrl='<%# "frmFindAppointment.aspx?Fullname=" + HttpUtility.UrlEncode(Eval("Fullname").ToString())+"&RecordNumber="+ HttpUtility.UrlEncode(Eval("RecordNumber").ToString())+"&Date="+  HttpUtility.UrlEncode(Eval("Date").ToString())+"&SlotID="+ HttpUtility.UrlEncode(Eval("SlotID").ToString())+"&Timeslot="+ HttpUtility.UrlEncode(Eval("Timeslot").ToString())  %>' Text="Create Appointment" />
            <ajaxToolkit:ModalPopupExtender  BackgroundCssClass="modalBackground" ID="ModalPopupExtender1" runat="server" TargetControlID="createAppointment" PopupControlID="PNL" OkControlID="ButtonOk"  />

     <asp:Panel ID="PNL" runat="server" style="display:none; width:900px; background-color:White; border-width:2px; border-color:Black; border-style:solid; padding:20px;">
<asp:TextBox ID="txtViewPatientEmail" runat="server" 
                    ForeColor="Black" CssClass="textbox" ReadOnly="True"></asp:TextBox>
</asp:Panel>
            
            </ItemTemplate> 
        </asp:TemplateField>
                  
               </Columns>

          </ContentTemplate>
           </asp:UpdatePanel>

Below is how I reciev the passed values from my linkbutton

C#

if (Request.QueryString["FullName"] != null && !string.IsNullOrEmpty(Request.QueryString["FullName"].ToString())
              || (Request.QueryString["Slots"] != null && !string.IsNullOrEmpty(Request.QueryString["Slots"].ToString()) || (Request.QueryString["SlotsID"] != null && !string.IsNullOrEmpty(Request.QueryString["SlotsID"].ToString()))))
            {
                string SlotId = Convert.ToString((Request.QueryString["SlotsID"]));
                Session["SlotID"] = SlotId;

                string fullName = Convert.ToString((Request.QueryString["FullName"]));
                Session["FullName"] = fullName;

            }

Below is the event to populate the textbox in my popup

C#

foreach (GridViewRow row in grdAvailableStaff.Rows)
            {

                //Am looking for the control name "txtViewPatientEmail"
                string txtViewStaffName = ((System.Web.UI.WebControls.TextBox)row.FindControl("txtViewPatientEmail")).Text;
                txtViewStaffName = Session["FullName"].ToString();
}

Am expecting every time i click a link, a popup will appear with a value inside...

Posted 16-Aug-11 21:41pm

Anele Ngqandu

Updated 16-Aug-11 22:30pm

v2

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Herman<T>.Instance 17-Aug-11 4:19am

first: show your code. That helps us understand what you do

1 solution

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Herman<T>.Instance · Answer 1 · 2011-08-16T22:24:00

in the onclick event of your button:

Button btn = (Button)sender;
GridViewRow row = (GridViewRow)btn.NamingContainer;

By using this code you have the gridview row in which the button was clicked.

Then:

TextBox myTextBox = (TextBox)row.FindControl("nameOfYourTextBoxHere");
if (myTextBox != null) // control is found)
     myTextBox.Text = "any text you wnat to place in the textbox";