Change text of custom linkbutton in CommandItemTemplate

[Chris LaFrancis]

I have the following in the CommandItemTemplate tag:

 

<

 

CommandItemTemplate>

 

 

    <table width="100%">

 

 

        <tr>

 

 

            <td align="left">Third Party Mismatches</td>

 

 

            <td align="right">

 

 

                <asp:LinkButton ID="showFilter" runat="server" CommandName="DisplayFilter"

 

 

                    Text="Filter">

 

 

                </asp:LinkButton>

 

 

            </td>

 

 

        </tr>

 

 

    </table>

 

</

 

CommandItemTemplate>

 

 

 

 

 

 

 

 

 

What i want to do is when the user clicks on the showFilter link it will display or hide the folter depending on if it is shown already or not. I have that part working. What I can't get is to change the text to "Show Filter" if the filter is hidden and "Hide Filter" if it is shown.
I have the followinfg code but it isn't working.

Protected Sub GrdThirdParty_ItemCommand(ByVal source As Object, _
                         ByVal e As GridCommandEventArgs) _
                         Handles GrdThirdParty.ItemCommand

        If e.CommandName = "DisplayFilter" Then
            Dim lnkButton As LinkButton = CType(e.Item.FindControl("showFilter"), LinkButton)
            If GrdThirdParty.AllowFilteringByColumn = False Then
                GrdThirdParty.AllowFilteringByColumn = True
                lnkButton.Text = "Hide Filter"
            Else
                GrdThirdParty.AllowFilteringByColumn = False
                lnkButton.Text = "Show Filter"
            End If
            GrdThirdParty.MasterTableView.Rebind()
        End If

    End Sub

Any ideas?
Thanks for the help.

[Shinu]

Hello Chris,

You can set the Text proeprty of the LinkButton directly from aspx page, instead of setting from code behind.

ASPX:

<CommandItemTemplate>
    <table width="100%">
        <tr>
            <td align="left">
                Third Party Mismatches
            </td>
            <td align="right">
                <asp:LinkButton ID="showFilter" runat="server" CommandName="DisplayFilter" Text='<%# (RadGrid1.AllowFilteringByColumn) ? "Hide Filter" : "Show Filter"%>'>
                </asp:LinkButton>
            </td>
        </tr>
    </table>
</CommandItemTemplate>

-Shinu.

[Chris LaFrancis]

Thanks for the reply but when I add the code I get an error that says the '?' character cannot be used here.

[Dimo]

Hi Chris,

The following syntax is C#

(condition) ? if true : if false

You need to use the VB syntax, which is

Iif(condition, if true, if false)

http://www.google.com/search?q=vb+iif

Regards,
Dimo
the Telerik team

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[Matt DiPietro]

Is there any way to access that control from the client side?  I'm doing the exact same thing the OP is doing, except I'm showing/hiding the filter row using javascript and the grid.get_masterTableView().showFilterItem()/hideFilterItem() functions.  I'd like to be able to change the text of the link as well if possible.

[Matt DiPietro]

Nevermind.  I figured out a way to do this by passing the control id to the javascript function.