RadGrid GridHyperlinkColumn NavigateUrl Assignment At Runtime

[Mahesh Babu]

Hi,

I have a radGrid to which I add GridHyperlinkColumn at runtime. I need to pass Navigation urls to these which depends on the values of the other cells.

GridHyperLinkColumn column = (GridHyperLinkColumn)gridBoundColumns[j];
column.DataTextField = gridField.DataField;
column.HeaderText = gridField.HeaderText;
column.NavigateUrl = "accountview.aspx?id=<%# Eval(\"AccountID\") %>";

If I pass the NavigateUrl value as above it is taking as a string but not replacing Eval("AccountID") to the value in that cell.
How to achieve this functionality like this???

Thanks,
Mahesh

[Vlad]

Hi Mahesh,

Expressions are allowed only in Controls - grid columns are abstract objects (IStateManager). You can use ItemDataBound or ItemCreated to find the Hyperlink control and assign desired property value directly. Other possible solution will be to use template column where you can use binding expression without problems.

Regards,
Vlad
the Telerik team

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[Guramar Sekhon]

   <Columns>

     <telerik:GridEditCommandColumn  HeaderText="Edit" UniqueName="EditCommandColumn" ButtonType="imagebutton"  />

        <telerik:GridBoundColumn DataField="continent_name" HeaderText="Name Of Continent" 

            SortExpression="continent_name" UniqueName="continent_name">

        </telerik:GridBoundColumn>

        <telerik:GridBoundColumn DataField="dt_created" DataType="System.DateTime" ReadOnly="true"

            HeaderText="Date Of Creation" SortExpression="dt_created" UniqueName="dt_created" DataFormatString="{0:d}">

        </telerik:GridBoundColumn>

        <telerik:GridBoundColumn DataField="dt_modified" DataType="System.DateTime" ReadOnly="true"

            HeaderText="Modified Date" SortExpression="dt_modified" UniqueName="dt_modified" DataFormatString="{0:d}">

        </telerik:GridBoundColumn>

        <telerik:GridCheckBoxColumn DataField="status" DataType="System.Boolean" 

            HeaderText="Status" SortExpression="status" UniqueName="status">

        </telerik:GridCheckBoxColumn>

        <telerik:GridCheckBoxColumn DataField="deleted" DataType="System.Boolean" 

            HeaderText="Deleted" SortExpression="deleted" UniqueName="deleted">

        </telerik:GridCheckBoxColumn>

           

        <telerik:GridTemplateColumn UniqueName="TemplateColumn" 

            HeaderText="View of Countries"  DataField="cont_id" 

            DataType="System.Int32" HeaderTooltip="View associated Countries">

            <ItemTemplate>

     <asp:HyperLink runat="server" Text="View" NavigateUrl="~/Embraled/Lcountry.aspx?cont_id=<%#Eval('cont_id')%>"></asp:HyperLink>

            </ItemTemplate>

        </telerik:GridTemplateColumn>

           

    </Columns>

***************************************************************************************************************************

In the above code snippet , i am getting the error....

I do have same issue and i did as per suggestion like passing in template but althought i m getting the same string it is not being replaxed by required "cont_id".

Please suggest me how can i acheive the required target....

[Yavor]

Hi Guramar,

Attached to this message, is a small application, which handles a similar task.
Take a look at the code, and let me know how it goes.

Best wishes,
Yavor
the Telerik team

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[william]

Hi,

it didn't work for me. the application throws the following exception:
"Databinding expressions are only supported on objects that have a DataBinding event. Telerik.Web.UI.GridHyperLinkColumn does not have a DataBinding event."

Here is the code behind:

<telerik:RadGrid ID="grvStatusInvoice" runat="server" AllowPaging="True"
        AllowSorting="True" GridLines="None"
        onneeddatasource="grvStatusInvoice_NeedDataSource"
        AutoGenerateEditColumn="True" DataSourceID="ldsStatusInvoice"
        AllowAutomaticDeletes="True" AllowAutomaticInserts="True"
        AllowAutomaticUpdates="True" AutoGenerateDeleteColumn="True"
        Skin="WebBlue" >
    <ClientSettings>
        <Selecting AllowRowSelect="True" />
    </ClientSettings>
<MasterTableView DataSourceID="ldsStatusInvoice" AutoGenerateColumns="False"
        DataKeyNames="SAPCompanyId,StatusCode1" CommandItemDisplay="Top" >
<CommandItemSettings ExportToPdfText="Export to Pdf"></CommandItemSettings>

<RowIndicatorColumn>
<HeaderStyle Width="20px"></HeaderStyle>
</RowIndicatorColumn>

<ExpandCollapseColumn>
<HeaderStyle Width="20px"></HeaderStyle>
</ExpandCollapseColumn>
    <Columns>
        <telerik:GridBoundColumn DataField="SAPCompanyId" HeaderText="Sociedad"
            ReadOnly="True" SortExpression="SAPCompanyId" UniqueName="SAPCompanyId">
        </telerik:GridBoundColumn>
        <telerik:GridBoundColumn DataField="StatusCode" HeaderText="Estado"
            ReadOnly="True" SortExpression="StatusCode" UniqueName="StatusCode">
        </telerik:GridBoundColumn>
        <telerik:GridBoundColumn DataField="StatusName" HeaderText="Descripción"
            SortExpression="StatusName" UniqueName="StatusName">
        </telerik:GridBoundColumn>
        <telerik:GridCheckBoxColumn DataField="ApprovalRequired"
            DataType="System.Boolean" HeaderText="Requiere Aprobación"
            SortExpression="ApprovalRequired" UniqueName="ApprovalRequired" ItemStyle-HorizontalAlign="Center" >
<ItemStyle HorizontalAlign="Center"></ItemStyle>
        </telerik:GridCheckBoxColumn>
        <telerik:GridCheckBoxColumn DataField="SapTransmission"
            DataType="System.Boolean" HeaderText="Transmisión a SAP"
            SortExpression="SapTransmission" UniqueName="SapTransmission" ItemStyle-HorizontalAlign="Center">
<ItemStyle HorizontalAlign="Center"></ItemStyle>
        </telerik:GridCheckBoxColumn>
        <telerik:GridBoundColumn DataField="SapResponseCode" ItemStyle-HorizontalAlign="Center"
            HeaderText="Equivalencia SAP" SortExpression="SapResponseCode"
            UniqueName="SapResponseCode">
<ItemStyle HorizontalAlign="Center"></ItemStyle>
        </telerik:GridBoundColumn>
        <telerik:GridCheckBoxColumn DataField="ContabRequired" ItemStyle-HorizontalAlign="Center"
            DataType="System.Boolean" HeaderText="Requiere Contabilización"
            SortExpression="ContabRequired" UniqueName="ContabRequired">
<ItemStyle HorizontalAlign="Center"></ItemStyle>
        </telerik:GridCheckBoxColumn>

           <telerik:GridHyperLinkColumn NavigateUrl='<%#String.Format("~/Administration/FrmSupportedStatusCodes.aspx?cont_id={0}", Eval("SAPCompanyId").ToString()) %>' UniqueName="column" HeaderText="Button Column"
                    Text="link button"></telerik:GridHyperLinkColumn>

    </Columns>
</MasterTableView>
</telerik:RadGrid>

And what about if I would have more than only one parameter? how does it work?, There is another issue, if I try to do it by means of an Itemdatabound method I'm getting the following error: HTTP Error 404 - Not Found. 
Thanks in advance
William

[Iana Tsolova]

Hello william,

Have you tried the alternative solution provided in the sample attached by my colleague Yavor?

Kind regards,
Iana
the Telerik team