asp.net c# button click refreshing whole page

I placed my repeater inside an update panel like this. Not sure why it refreshes the whole page when i click on these 2 buttons. Not sure why it does not work for these 2 buttons, it works for other buttons though, could it be because i added a new textbox on click of edit and the whole page refresh? As for the delete button, could it be because it couldn't find the position since its deleted? How do I solve this? Please help.

Home.aspx

    <asp:ScriptManager runat="server" />              <asp:UpdatePanel runat="server" UpdateMode="Conditional">                  <ContentTemplate>                     <asp:Repeater runat="server" ID="reptater">                          <ItemTemplate>                             <div>                                <asp:LinkButton ID="editThreadBtn" CssClass="editThreadBtn" class="btn btn-default btn-sm" runat="server" OnClick="editThreadBtn_Click" Font-Size="Medium"><i class="glyphicon glyphicon-edit"></i></asp:LinkButton>                                <asp:LinkButton ID="deleteThreadBtn" CssClass="deleteThreadBtn" class="btn btn-default btn-sm" runat="server" OnClick="deleteThreadBtn_Click" Font-Size="Medium"><i class="glyphicon glyphicon-trash"></i></asp:LinkButton>                            </div>                              <%-- show this textbox & button only if user click on edit thread --%>                            <asp:Panel ID="editTread_pnl" class="input-group" runat="server" Visible="false">                                <textarea id="editThreadTA" class="form-control" runat="server" style="font-size: 14px;"><%#Eval("Thread_Description") %></textarea>                                                  &nbsp;&nbsp;                                <asp:Button ID="updateThreadBtn" runat="server" class="btn-info" Text="Update" OnClick="updateThreadBtn_Click" />                           </asp:Panel>                         </ItemTemplate>                      </asp:Repeater>                </ContentTemplate>            </asp:UpdatePanel>                      

Home.aspx.cs

protected void editThreadBtn_Click(object sender, EventArgs e)      {          LinkButton editThreadBtn_ = (sender as LinkButton);            // get repeater item reference          RepeaterItem item22 = editThreadBtn_.NamingContainer as RepeaterItem;            // get the repeater item index          int index = item22.ItemIndex;            // find the threadID label control          Label threadID_lbl = (Label)item22.FindControl("threadID_get");          int threadID_val = Convert.ToInt32(threadID_lbl.Text);            foreach (RepeaterItem i in reptater.Items)          {              Label Thread_IDs = (Label)i.FindControl("threadID_get");              int threadID_vals = Convert.ToInt32(Thread_IDs.Text);                if (threadID_val == threadID_vals)              {                  Panel thread_editPanel = (Panel)i.FindControl("editTread_pnl");                  thread_editPanel.Visible = true;              }              else              {                  Panel thread_editPanel = (Panel)i.FindControl("editTread_pnl");                  thread_editPanel.Visible = false;              }          }        }      protected void deleteThreadBtn_Click(object sender, EventArgs e)      {          LinkButton deleteThread_btn = (sender as LinkButton);            // get repeater item reference          RepeaterItem item25 = deleteThread_btn.NamingContainer as RepeaterItem;            // get the repeater item index          int index = item25.ItemIndex;            // find the threadID label control          Label threadID_lbl = (Label)item25.FindControl("threadID_get");          int threadID_val = Convert.ToInt32(threadID_lbl.Text);            SqlConnection con5 = new SqlConnection(constr);          con5.Open();            SqlCommand cmd5 = new SqlCommand("UPDATE Thread SET Delete_Status = 'Yes' where ThreadID = '" + threadID_val + "'", con5);          cmd5.ExecuteNonQuery();            con5.Close();            //Response.Redirect(Request.Url.AbsoluteUri);          showWholeRepeater();      }                       

https://stackoverflow.com/questions/65756562/asp-net-c-sharp-button-click-refreshing-whole-page January 17, 2021 at 09:49AM