<telerik:RadGrid ID="RadGridOrderLines" SkinId="MyRadGrid"
runat="server">
<MasterTableView Width="100%">
<Columns>
<telerik:GridTemplateColumn HeaderText="Comment" ItemStyle-HorizontalAlign="Left">
<HeaderTemplate>
Comment
</HeaderTemplate>
<ItemTemplate>
<asp:Label runat="server" id="lblComment2"></asp:Label>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox runat="server" id="tbComment2" Text='' TextMode="MultiLine" Rows="4" Columns="20"></asp:TextBox>
</EditItemTemplate>
</telerik:GridTemplateColumn>
</Columns>
</MasterTableView>
</telerik:RadGrid>
I use a skin named MyRadGrid which contains a several columns (TechnicalReference,...) :
<
telerik:RadGrid SkinID="MyRadGrid" runat="server"
Skin="Default"
AlternatingItemStyle-BackColor="#EAF3F7"
EnableEmbeddedSkins="false"
datakeynames="OrderLineId" Width="98%"
AutoGenerateColumns="false">
<MasterTableView Width="100%">
<Columns>
<telerik:GridTemplateColumn HeaderText="Reference" ItemStyle-HorizontalAlign="Left">
<HeaderTemplate>
TechnicalReference
</HeaderTemplate>
<ItemTemplate>
<asp:HiddenField runat="server" id="hidOrderLineId" Value=''></asp:HiddenField>
<asp:Label runat="server" id="lblReference" Text=''></asp:Label>
</ItemTemplate>
</telerik:GridTemplateColumn>
....
My problem is that when I display the page, I see the columns Comment and TechnicalReference. I don't understand why I don't see only the column of the Skin (TechnicalReference). When, I test with the GridView control of Asp.net, it displays only the columns of the skin (TechnicalReference). Why is it different ?
I use the RadGrid control into all my pages, and I really need that it have the same behaviour of the GridView.
Do you have an idea to resolve my problem easily ?
Thank you in advance,
Suzi.
6 Answers, 1 is accepted
The observed behavior in RadGrid is expected and the reason is that the RadGrid control has a different sctructure from the GridView. However, there is a workaround - you can check whether there are columns added from an ASP.NET theme, and if yes, make the other columns invisible:
ASPX
| <%@ Page Language="C#" Theme="theme182794" %> |
| <%@ Import Namespace="System.Data" %> |
| <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> |
| <!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"> |
| <meta http-equiv="content-type" content="text/html; charset=utf-8" /> |
| <title>RadControls for ASP.NET AJAX</title> |
| </head> |
| <body> |
| <form id="form1" runat="server"> |
| <asp:ScriptManager ID="ScriptManager1" runat="server" /> |
| <telerik:RadGrid |
| ID="RadGrid1" |
| runat="server" |
| AllowSorting="true" |
| AutoGenerateColumns="false" |
| OnNeedDataSource="RadGrid_NeedDataSource"> |
| <MasterTableView> |
| <Columns> |
| <telerik:GridBoundColumn DataField="Column1" HeaderText="Column 1 ASPX" /> |
| <telerik:GridBoundColumn DataField="Column2" HeaderText="Column 2 ASPX" /> |
| </Columns> |
| </MasterTableView> |
| </telerik:RadGrid> |
| <asp:GridView |
| ID="GridView1" |
| runat="server" |
| AutoGenerateColumns="false"> |
| <Columns> |
| <asp:BoundField DataField="Column1" HeaderText="Column 1 ASPX" /> |
| <asp:BoundField DataField="Column2" HeaderText="Column 2 ASPX" /> |
| </Columns> |
| </asp:GridView> |
| </form> |
| </body> |
| </html> |
C#
| protected int ThemeColumns; |
| protected override void OnPreInit(EventArgs e) |
| { |
| base.OnPreInit(e); |
| ThemeColumns = RadGrid1.Columns.Count; |
| } |
| protected override void OnInit(EventArgs e) |
| { |
| base.OnInit(e); |
| if (ThemeColumns > 0) |
| { |
| for (int j = 0; j < RadGrid1.Columns.Count - ThemeColumns; j++) |
| { |
| RadGrid1.Columns[j].Visible = false; |
| } |
| } |
| } |
| protected void RadGrid_NeedDataSource(object sender, GridNeedDataSourceEventArgs e) |
| { |
| (sender as RadGrid).DataSource = GetDataSource(); |
| } |
| protected void Page_Load(object sender, EventArgs e) |
| { |
| if (!IsPostBack) |
| { |
| GridView1.DataSource = GetDataSource(); |
| GridView1.DataBind(); |
| } |
| } |
| protected DataTable GetDataSource() |
| { |
| DataTable dt = new DataTable(); |
| DataRow dr; |
| int colsNum = 4; |
| int rowsNum = 10; |
| string colName = "Column"; |
| for (int j = 1; j <= colsNum; j++) |
| { |
| dt.Columns.Add(String.Format("{0}{1}", colName, j)); |
| } |
| for (int i = 1; i <= rowsNum; i++) |
| { |
| dr = dt.NewRow(); |
| for (int k = 1; k <= colsNum; k++) |
| { |
| dr[String.Format("{0}{1}", colName, k)] = String.Format("{0}{1} Row{2}", colName, k, i); |
| } |
| dt.Rows.Add(dr); |
| } |
| return dt; |
| } |
SKIN
| <%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %> |
| <telerik:RadGrid runat="server"> |
| <MasterTableView> |
| <Columns> |
| <telerik:GridBoundColumn DataField="Column3" HeaderText="Column 3 Theme" /> |
| <telerik:GridBoundColumn DataField="Column4" HeaderText="Column 4 Theme" /> |
| </Columns> |
| </MasterTableView> |
| </telerik:RadGrid> |
| <asp:GridView runat="server"> |
| <Columns> |
| <asp:BoundField DataField="Column3" HeaderText="Column 3 Theme" /> |
| <asp:BoundField DataField="Column4" HeaderText="Column 4 Theme" /> |
| </Columns> |
| </asp:GridView> |
Sincerely yours,
Dimo
the Telerik team
Check out Telerik Trainer, the state of the art learning tool for Telerik products.
Rank 1
Rank 1
protected override void OnPreInit(EventArgs e)
{
base.OnPreInit(e);
if(RadGrid!=null)
ThemeColumns = RadGrid.Columns.Count;
}
Do you have an idea ? Is it working for you ?
Thank you in advance,
Yes, the solution works on my side as expected.
Try using an ID for RadGrid, which is different from the control's name:
ThemeColumns = RadGrid1.Columns.Count;
Of course, in order to be available in PreInit, the RadGrid control must be added declaratively on the page.
Greetings,
Dimo
the Telerik team
Check out Telerik Trainer, the state of the art learning tool for Telerik products.
Rank 1
I found an other solution which work into my project. I use the property VirtualItemCount :
<
telerik:RadGrid SkinID="MailDivGrid" runat="server"
datakeynames="OrderLineId" Width="98%"
AutoGenerateColumns="false">
<mastertableview VirtualItemCount="1">
<rowindicatorcolumn>
<HeaderStyle Width="20px" />
</rowindicatorcolumn>
<expandcollapsecolumn>
<HeaderStyle Width="20px" />
</expandcollapsecolumn>
<Columns>
<telerik:GridTemplateColumn HeaderText="MailDivCode" ItemStyle-HorizontalAlign="Left">
<ItemTemplate>
<asp:Label runat="server" id="lblCode" Text='<%# Bind("Code") %>'></asp:Label>
</ItemTemplate>
</telerik:GridTemplateColumn>
</Columns>
</mastertableview>
</
telerik:RadGrid>
protected override void OnInit(EventArgs e)
{
base.OnInit(e);
int themeColumns = 0;
themeColumns = RadGridMailDivs.MasterTableView.VirtualItemCount;
if (themeColumns > 0)
{
for (int j = 0; j < RadGridMailDivs.Columns.Count - themeColumns; j++) {
RadGridMailDivs.Columns[j].Visible =
false;
}
}
}
The property VirtualItemCount can be use for that ?
I am afraid that the VirtualItemCount property is not related to the number of columns in the ASP.NET theme. You cannot use that.
Please review carefully my example once again and try to find out what should be changed in your implementation.
If you need further advice, please open a new support ticket and send us a simple runnable project, so that we can see what's happening.
All the best,
Dimo
the Telerik team
Check out Telerik Trainer, the state of the art learning tool for Telerik products.