HeaderTooltip with no Sorting

[Albert Shenker]

It appears the HeaderTooltip property doesn't work when a column isn't sortable (ie has no sortExpression). In my testing this is the case for TemplateColumns, though it may be true of other column types as well. Is Telerik palnning on changing this? Is there a workaround?

[Antonio Stoilkov]

Hi Albert,

I tried to replicate the issue which you described, but to no avail. Attached to this message, you will find the project which I used for testing.

Please, take a look at it and let me know if there are any differences at your end, which I may be leaving out.

Greetings,
Antonio Stoilkov
the Telerik team

[Albert Shenker]

Here is my markup. In this case, when you hover over the first column there is no tooltip (no_tooltip.jpg). When you hover over the second, there is (tooltip_visible.jpg). The only difference is the sortexpression. If I give the first column a SortExpression, the tooltip appears (tooltip_sort.jpg).

<telerik:RadGrid id="rgTDC"
                runat="server"
                AutoGenerateColumns="False"
                Skin="Windows7"
                Height="100%"
                Width="100%"
                BorderStyle="None"
                AllowPaging="True"
                AllowSorting="True"
                AllowCustomSorting="True"
                AllowMultiRowSelection="True"
                ShowStatusBar="True"
                ShowGroupPanel="False"
                PageSize="20"

    >
    <MasterTableView
                DataKeyNames="Id"
                ClientDataKeyNames="Id"
                Width="100%"
                TableLayout="Fixed"
                GroupLoadMode="Client"
                ShowGroupFooter="False"
                HeaderStyle-Height="30px"
                PagerStyle-VerticalAlign="Top"
                CommandItemDisplay="Top"
                EditMode="InPlace"
               >

        <Columns>
            <telerik:GridTemplateColumn HeaderText="Well Material" UniqueName="ThermowellConfiguration.ThermowellMaterial.Name" HeaderToolTip="Thermowell Material" SortExpression="">
                <ItemStyle HorizontalAlign="Left" VerticalAlign="Middle"></ItemStyle>
                <HeaderStyle width="140px" HorizontalAlign="Left" VerticalAlign="Bottom" ForeColor="Blue"></HeaderStyle>
                <ItemTemplate>
                    <%#DataBinder.Eval(Container.DataItem, "ThermowellConfiguration.ThermowellMaterial.Name")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <telerik:RadComboBox id="rcThermowellMaterial" runat="server" Width="130px" Skin="Windows7"></telerik:RadComboBox>
                </EditItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridTemplateColumn HeaderText="Conn. Size.<br/>in." UniqueName="ThermowellConfiguration.ProcessConnection.Size" SortExpression="ThermowellConfiguration.ProcessConnection.Size" HeaderToolTip="Process Connection Size">
                <ItemStyle HorizontalAlign="Left" VerticalAlign="Middle"></ItemStyle>
                <HeaderStyle width="90px" HorizontalAlign="Left" VerticalAlign="Bottom" ForeColor="Blue"></HeaderStyle>
                <ItemTemplate>
                    <%#DataBinder.Eval(Container.DataItem, "ThermowellConfiguration.ProcessConnection.Size")%>
                </ItemTemplate>
                <EditItemTemplate>
                    <telerik:RadComboBox id="rcProcessConnectionSize" runat="server" Width="80px" Skin="Windows7"></telerik:RadComboBox>
                </EditItemTemplate>
            </telerik:GridTemplateColumn>



        </Columns>
        <CommandItemTemplate>

        </CommandItemTemplate>
        <NoRecordsTemplate></NoRecordsTemplate>
        <PagerStyle Mode="NextPrevAndNumeric" AlwaysVisible="True" />
    </MasterTableView>
    <ClientSettings  AllowExpandCollapse="True" AllowKeyboardNavigation="true">
        <Selecting AllowRowSelect="True" EnableDragToSelectRows="False"  />
        <Scrolling AllowScroll="True" UseStaticHeaders="True" FrozenColumnsCount="5" />
        <Resizing AllowColumnResize="true" EnableRealTimeResize="True" ResizeGridOnColumnResize="True"/>
        <ClientEvents  />
        <KeyboardNavigationSettings AllowSubmitOnEnter="true" />
    </ClientSettings>
</telerik:RadGrid>

[Antonio Stoilkov]

Hello,

Thank you for reporting the issue. Your Telerik points have been updated for your bug report.

The issue is already fixed and will be part of the upcoming Beta release, which is expected by the end of the week.

Additionally, you could resolve the problem by enabling sorting and then looping through all the columns you don not need sorting and removing the href attribute of the html <a> tag.

Greetings,
Antonio Stoilkov
the Telerik team