title: Adding GridTemplateColumn breaks the RadGrid
body: <p>Looks like this before GridTemplateColumn:</p>
  
  <p><img src="https://i.stack.imgur.com/aLGbY.png" alt="enter image description here"></p>
  
  <p>And after adding GridTemplateColumn</p>
  
  <pre><code>&lt;telerik:GridTemplateColumn HeaderText="Name" HeaderStyle-Width="250" FilterControlWidth="250"&gt;                          
      &lt;ItemTemplate&gt;                                          
          &lt;asp:HyperLink ID="targetControl" runat="server" NavigateUrl="#" Text='&lt;%# Eval("Name") %&gt;'&gt;&lt;/asp:HyperLink&gt;
      &lt;/ItemTemplate&gt;
  &lt;/telerik:GridTemplateColumn&gt;
  </code></pre>
  
  <p><img src="https://i.stack.imgur.com/xv6Fd.png" alt="enter image description here"></p>
  
  <p>Trying to implement <a href="http://demos.telerik.com/aspnet-ajax/tooltip/examples/targetcontrolsandajax/defaultcs.aspx?product=tooltip" rel="nofollow noreferrer">http://demos.telerik.com/aspnet-ajax/tooltip/examples/targetcontrolsandajax/defaultcs.aspx?product=tooltip</a></p>
  
  <p>My RadGrid:</p>
  
  <pre><code>&lt;telerik:RadGrid HorizontalAlign="Center" PageSize="50" ID="RadGrid1" runat="server" AllowPaging="True" AllowSorting="True" CellSpacing="0" AllowFilteringByColumn="false" Skin="Forest" DataSourceID="SqlDataSourceUyeAday" Height="400px" Width="100%" AutoGenerateColumns="False"&gt;
      &lt;ClientSettings&gt;
          &lt;Scrolling AllowScroll="True" UseStaticHeaders="True"&gt;&lt;/Scrolling&gt;
      &lt;/ClientSettings&gt;
      &lt;MasterTableView AutoGenerateColumns="False" DataSourceID="SqlDataSourceUyeAday"&gt;
          &lt;Columns&gt;
              &lt;telerik:GridBoundColumn ItemStyle-CssClass="iceri" DataField="Id" ItemStyle-Width="50" HeaderStyle-Width="50" FilterControlWidth="50" FilterControlAltText="Filter Id column" HeaderText="Id" SortExpression="Id" UniqueName="AdayId"&gt;
                  &lt;ColumnValidationSettings&gt;
  
                  &lt;/ColumnValidationSettings&gt;
              &lt;/telerik:GridBoundColumn&gt;
  
              &lt;telerik:GridTemplateColumn HeaderText="FirstName" SortExpression="FirstName" DataField="FirstName" UniqueName="FirstName" FilterControlAltText="Filter FirstName column" HeaderStyle-Width="250" FilterControlWidth="250"&gt;
  
                  &lt;ItemTemplate&gt;
  
                      &lt;asp:HyperLink ID="targetControl" runat="server" NavigateUrl="#" Text='&lt;%# Eval("FirstName") %&gt;'&gt;&lt;/asp:HyperLink&gt;
                  &lt;/ItemTemplate&gt;
              &lt;/telerik:GridTemplateColumn&gt;
  
              &lt;telerik:GridDateTimeColumn DataField="Date" HeaderStyle-CssClass="iceriTarih" ItemStyle-CssClass="iceriTarih" FilterControlAltText="Filter Datecolumn" PickerType="DatePicker" DataFormatString="{0:dd/MM/yyyy}" HeaderText="Date" SortExpression="Date" UniqueName="Date" DataType="System.DateTime" ItemStyle-Width="150" HeaderStyle-Width="150" FilterControlWidth="100"&gt;
                  &lt;ColumnValidationSettings&gt;
  
                  &lt;/ColumnValidationSettings&gt;
              &lt;/telerik:GridDateTimeColumn&gt;
          &lt;/Columns&gt;
          &lt;EditFormSettings&gt;
              &lt;EditColumn CurrentFilterFunction="NoFilter" FilterListOptions="VaryByDataType"&gt;
              &lt;/EditColumn&gt;
          &lt;/EditFormSettings&gt;
      &lt;/MasterTableView&gt;
  &lt;/telerik:RadGrid&gt;
  </code></pre>
  
  <p>What could be the reason?</p>