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Dynamically Change Grid Column Header Text

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Grid

This is a migrated thread and some comments may be shown as answers.

7 Answers, 1 is accepted

Accepted

answered on 31 Jan 2010, 10:57 PM

Does this work for you?

    
                /// <summary> 
        
                /// Item databound for the radgrid, set the header text here based on the selected value of the combo 
        
                /// </summary> 
        
                protected void grid_ItemDataBound(object sender, GridItemEventArgs e) { 
        
                    if (e.Item is GridHeaderItem) { 
        
                        GridHeaderItem item = e.Item as GridHeaderItem; 
        
                        item["CustomerID"].Text = combo.SelectedValue; 
        
                    } 
        
                } 
        
                /// <summary> 
        
                /// Rebind the grid when the combo changes 
        
                /// </summary> 
        
                /// <param name="o"></param> 
        
                /// <param name="e"></param> 
        
                protected void combo_SelectedIndexChanged(object o, RadComboBoxSelectedIndexChangedEventArgs e) { 
        
                    grid.Rebind(); 
        
                }

    
            <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %> 
        
            <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
        
            <html xmlns="http://www.w3.org/1999/xhtml"> 
        
            <head runat="server"> 
        
                <title></title> 
        
            </head> 
        
            <body> 
        
                <form id="form1" runat="server"> 
        
                <div> 
        
                    <telerik:RadScriptManager ID="scriptMan" runat="server" /> 
        
                    <telerik:RadComboBox ID="combo" runat="server" Width="350px"  
        
                        AutoPostBack="True" DataSourceID="CustomerDS" DataTextField="CompanyName"  
        
                        DataValueField="CustomerID"  
        
                        onselectedindexchanged="combo_SelectedIndexChanged"> 
        
                    </telerik:RadComboBox> 
        
                    <br /><br /><br /><br /><br /> 
        
                    <telerik:RadGrid ID="grid" runat="server" DataSourceID="CustomerDS" GridLines="None" 
        
                        OnItemDataBound="grid_ItemDataBound"> 
        
                        <MasterTableView AutoGenerateColumns="False" DataKeyNames="CustomerID" DataSourceID="CustomerDS"> 
        
                            <RowIndicatorColumn> 
        
                                <HeaderStyle Width="20px"></HeaderStyle> 
        
                            </RowIndicatorColumn> 
        
                            <ExpandCollapseColumn> 
        
                                <HeaderStyle Width="20px"></HeaderStyle> 
        
                            </ExpandCollapseColumn> 
        
                            <Columns> 
        
                                <telerik:GridBoundColumn DataField="CustomerID" DefaultInsertValue="" HeaderText="CustomerID" 
        
                                    ReadOnly="True" SortExpression="CustomerID" UniqueName="CustomerID"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="CompanyName" DefaultInsertValue="" HeaderText="CompanyName" 
        
                                    SortExpression="CompanyName" UniqueName="CompanyName"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="ContactName" DefaultInsertValue="" HeaderText="ContactName" 
        
                                    SortExpression="ContactName" UniqueName="ContactName"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="ContactTitle" DefaultInsertValue="" HeaderText="ContactTitle" 
        
                                    SortExpression="ContactTitle" UniqueName="ContactTitle"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Address" DefaultInsertValue="" HeaderText="Address" 
        
                                    SortExpression="Address" UniqueName="Address"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="City" DefaultInsertValue="" HeaderText="City" 
        
                                    SortExpression="City" UniqueName="City"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Region" DefaultInsertValue="" HeaderText="Region" 
        
                                    SortExpression="Region" UniqueName="Region"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="PostalCode" DefaultInsertValue="" HeaderText="PostalCode" 
        
                                    SortExpression="PostalCode" UniqueName="PostalCode"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Country" DefaultInsertValue="" HeaderText="Country" 
        
                                    SortExpression="Country" UniqueName="Country"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Phone" DefaultInsertValue="" HeaderText="Phone" 
        
                                    SortExpression="Phone" UniqueName="Phone"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridBoundColumn DataField="Fax" DefaultInsertValue="" HeaderText="Fax" SortExpression="Fax" 
        
                                    UniqueName="Fax"> 
        
                                </telerik:GridBoundColumn> 
        
                                <telerik:GridCheckBoxColumn DataField="Bool" DataType="System.Boolean" DefaultInsertValue="" 
        
                                    HeaderText="Bool" SortExpression="Bool" UniqueName="Bool"> 
        
                                </telerik:GridCheckBoxColumn> 
        
                            </Columns> 
        
                        </MasterTableView> 
        
                    </telerik:RadGrid> 
        
                    <asp:SqlDataSource ID="CustomerDS" runat="server" ConnectionString="<%$ ConnectionStrings:NorthwindOAConnectionString %>" 
        
                        SelectCommand="SELECT * FROM [Customers]" /> 
        
                </div> 
        
                </form> 
        
            </body> 
        
            </html>

answered on 30 May 2015, 10:39 AM

I have the same issue.

If I change the header text on columns for the radgrid on a postback... eg selecting a drop down list (with autopostback=true), the columns header text does not change until I do an additional postback... so the columns header text is always one step behind.

If I rebind the grid after I have changed the header text, the correct header text is displayed, but I am unable to rebind as users could have entered data into the grid already.

I have tried this on page_load and radgrid_PreRender, where I would expect this to work, but the correct header text is not showing... It seems the header text is simply put into viewstate for next time... very puzzling!

Can anyone help please?

answered on 03 Jun 2015, 01:56 PM

Hi Craig,

In order to achieve this requirement, you will need to change the text of the header cell directly. In order to do that, you can make avail of the GetItems() method:
http://www.telerik.com/help/aspnet-ajax/grid-using-getitems-getcolumn-methods.html

In your case it will be something similar to this:

protected void RadGrid1_PreRender(object sender, EventArgs e)

{

GridHeaderItem headerItem = RadGrid1.MasterTableView.GetItems(GridItemType.Header)[0] as GridHeaderItem;

headerItem["ShipName"].Text = "Success";

}

Hope this helps. Please give it a try and let me know if it works for you.

Regards,
Eyup
Telerik

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answered on 21 Apr 2017, 11:59 AM

Hello Charles,

You can achieve this requirement using either of these approaches:

1.

protected void RadGrid1_DataBinding(object sender, EventArgs e)

{

RadGrid1.MasterTableView.GetColumn("ShipName").HeaderText = "Success";

}

protected void RadGrid1_PreRender(object sender, EventArgs e)

{

TableCell cell = RadGrid1.MasterTableView.GetHeaderCellByColumnUniqueName("ShipName");

(cell.Controls[0] as LinkButton).Text = "Success";

}

I hope this will prove helpful.

Regards,
Eyup
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Dynamically Change Grid Column Header Text

7 Answers, 1 is accepted