[Solved] Obtain GroupHeader Value

[Gino Suarez]

Hi Telerik experts,

Can you say me how to get the value of a groupheader, actually i can get the text based on your sample, also i can get the groupindex, but i can't get the value set into  FieldName="SubDiarioID"

protected void tk_Grid_PreRender(object sender, EventArgs e)
    {
        foreach (GridGroupHeaderItem groupHeader in tk_Grid.MasterTableView.GetItems(GridItemType.GroupHeader))
        {
            string strtxt = groupHeader.DataCell.Text; // accessing the groupheader text
            string strGroupIndex = groupHeader.GroupIndex;
            LinkButton hyperlnk = new LinkButton(); // creting new link
            hyperlnk.Text = strtxt.Substring(8,strtxt.Length-8);
            hyperlnk.CssClass = "gridtextbold";
            hyperlnk.Attributes.Add("OnClick", "return AbreVentana('ConsolidadoDiarioAuxiliar.aspx','Consolidado');");
            groupHeader.DataCell.Controls.Clear();
            groupHeader.DataCell.Controls.Add(hyperlnk); // adding link to the groupheader
        }
    }

<GroupByExpressions >
                                                <telerik:GridGroupByExpression >
                                                    <GroupByFields >
                                                        <telerik:GridGroupByField   FieldName="SubDiarioID"  FormatString="{0:g}" />
                                                    </GroupByFields>
                                                    <SelectFields>
                                                        <telerik:GridGroupByField FieldName="BESubDiarios.NombreSubDiario" HeaderText="Cuenta" />
                                                    </SelectFields>

                                                </telerik:GridGroupByExpression>
                                            </GroupByExpressions>
                                           <GroupHeaderItemStyle HorizontalAlign="Left" CssClass="gridtext"  />

[Gino Suarez]

i find and answer in the forum, thanks at all

protected void tk_Grid_ItemDataBound(object sender, GridItemEventArgs e)
    {

        if (e.Item is GridGroupHeaderItem)
        {
            GridGroupHeaderItem item = (GridGroupHeaderItem)e.Item;
            System.Data.DataRowView groupDataRow = (System.Data.DataRowView)e.Item.DataItem;
            item.DataCell.Text = groupDataRow["SubDiarioID"].ToString();


        }

    }

Best Regards
Gino

[Princy]

Hello Gino,

When you set the groupheader text in the ItemDataBound event of the grid, the text value does not persist on postbacks or grid rebinding. So a better option would be to set the text in the PreRender event of the grid as shown below:
c#:

 protected void RadGrid1_PreRender(object sender, EventArgs e)
    {
        foreach (GridGroupHeaderItem headerItem in RadGrid1.MasterTableView.GetItems(GridItemType.GroupHeader))
        {
            DataRowView dataRow = (DataRowView)headerItem.DataItem;
            headerItem.DataCell.Text = dataRow["SubDiarioID"].ToString();
        }
    }

Thanks
Princy.