TD visible issue

Question

I have browsed the different cases already answered about the topic but did not find the one answering my question:

<asp:ListView ID="lstView_phoneUsersExtensionsFound" runat="server" OnItemDataBound="lstView_phoneUsersExtensionsFound_ItemDataBound">
  <LayoutTemplate>
    <table id="tbl1" runat="server" class="bordered">
      <tr id="tr1" runat="server">
        <th id="th1" runat="server" visible='<%# selectOptionVisible %>' >Select</th>
        <th id="th1" runat="server">UserID</th>
        <th id="th2" runat="server">Firstname</th>
        <th id="th3" runat="server">Lastname</th>
      </tr>
        <tr id="ItemPlaceholder" runat="server">  
      </tr>            
    </table>
  </LayoutTemplate>
  <ItemTemplate>
    <tr>
       <td runat="server" visible='<%# selectOptionVisible %>' >
         <input type="radio" name="rdbutton_userSelection" value='<%# Eval("uuid") %>' />
         <asp:HiddenField runat="server" ID="hdfield_userID" Value='<%# Eval("uuid")%>' />
       </td>
       <td><asp:HyperLink ID="HyperLink1" runat="server" NavigateUrl='<%# String.Format("~/Users/DisplayUserDetails.aspx?selectedCCMUserID={0}&uuid={1}",Eval("userID"),Eval("uuid"))%>'><%# Eval("userID")%></asp:HyperLink></td>
       <td><%# Eval("firstname")%></td>
       <td><%# Eval("lastname")%></td>
     </tr>
   </ItemTemplate>
 <EmptyDataTemplate></EmptyDataTemplate></asp:ListView>

The repeater layouttemplate header does not take into account the visible value but the different items work well and hide the cell when needed. I would like to keep using an aspx function and not go through javascript or CSS if possible. Any idea?

Answer 1

Well the below code does the trick but I am sure there should be a better way.

  protected void lstView_phoneUsersExtensionsFound_ItemDataBound(object sender, ListViewItemEventArgs e)
{
    HtmlTableCell th_selectColumn = (HtmlTableCell)lstView_phoneUsersExtensionsFound.FindControl("th1");
    th_selectColumn.Visible = selectOptionVisible;

}

Answer 2

Try this...

<th id="th1" runat="server" visible='<%# Eval("selectOptionVisible") %>'>

The problem was in visible='<%# selectOptionVisible %>'

Instead I changed it to visible='<%# Eval("selectOptionVisible") %>'

Make sure that your data source contains a column as selectOptionVisible

Note

To hide the column header i.e <th>,

1. Load the "selectOptionVisible to a variable in the code behind while page loading.

2. Instead of '<%# Eval("selectOptionVisible") %>'

   now you can use '<%# selectOptionVisibleVariable %>'.

3. Set value for selectOptionVisibleVariable before loading data to ListView.