AllowGroup for C1CommandField in GridView 2025v2 399

AllowGroup for C1CommandField in GridView 2025v2 399

Posted by: enrique.pv-ext on 8 January 2026, 4:54 am EST

• 

  enrique.pv-ext

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  Posted 8 January 2026, 4:54 am EST

  Hi,

  Migrate from 2010v1 to 2025v2 399 in ASP.NET WebForms NET Framework 4.8.1.

  Using C1GridView from C1.Web.Wijmo.Controls.48.dll

  Now, this not compiles:

  col.AllowGroup = false; // NOT COMPILES

  Which is the alternative now, for GridView 2025v2 399

  I use :

  col.GroupInfo.GroupSingleRow = false;

  Full code:

  // NEW
  			//var colCommand = new C1CommandField();
  			var colCommand = new C1.Web.Wijmo.Controls.C1GridView.C1CommandField();
  			colCommand.ItemStyle.Width = 40;
          colCommand.ShowEditButton = true;
          colCommand.ButtonType = ButtonType.Image;
          colCommand.EditImageUrl = "~/App_Themes/Content/Imagenes/editing.gif";
          colCommand.CancelImageUrl = "~/App_Themes/Content/Imagenes/cancel.gif";
          colCommand.UpdateImageUrl = "~/App_Themes/Content/Imagenes/accept.gif";
  
          colCommand.ItemStyle.HorizontalAlign = HorizontalAlign.Center;
          this.C1GridView1.Columns.Add(colCommand);
  
  			// NEW
  			//var col = ((C1BoundField)this.C1GridView1.Columns[0]);
  			var col = ((C1.Web.Wijmo.Controls.C1GridView.C1BoundField)this.C1GridView1.Columns[0]);
  
  			col.Visible = true;
              col.RowMerge = C1.Web.Wijmo.Controls.C1GridView.RowMerge.Free; // RowMerge.Free;
  
              // NEW
              col.GroupInfo.GroupSingleRow = false;
  
  			col.AllowGroup = false; // NOT COMPILES

  Any suggestions?
  
  thanks, regards

• 

  uttkarsh.matiyal

  

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  Posted 9 January 2026, 3:12 am EST

  Hello,

  Setting GroupInfo.Position property groups the columns. So, you can remove AllowGroup property and use the GroupInfo.Position property instead as follows:

  var col = (C1BoundField)C1GridView1.Columns[0];
  
  // 2025v2 Grouping Logic
  col.GroupInfo.GroupSingleRow = false;
  col.GroupInfo.Position = GroupPosition.Header; 
  col.GroupInfo.OutlineMode = OutlineMode.StartExpanded; 

  Please refer to the attached sample for implementation. (see GridView_Grouping.zip)
  
  Please let us know if it helps.

  Regards,
  
  Uttkarsh.

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  enrique.pv-ext

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  Posted 26 January 2026, 6:21 am EST

  are require

     AllowColSizing="True"
                  ShowFooter="True"
                  GroupAreaVisible="True"
  

  ???

              <wijmo:C1GridView ID="C1GridView1" runat="server"
                  AutoGenerateColumns="False"
                  AllowColSizing="True"
                  ShowFooter="True"
                  GroupAreaVisible="True"
                  Width="800px">

  offtopic: AutoGenerateColumns vs AutogenerateColumns

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  uttkarsh.matiyal

  

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  Posted 27 January 2026, 6:19 am EST

  Hello,

  1. AllowColSizing: property used to set whether columns can be sized. [Ref: https://developer.mescius.com/componentone/docs/webforms/online-gridview/C1.Web.Wijmo.Controls.45~C1.Web.Wijmo.Controls.C1GridView.C1GridView~AllowColSizing.html]
     
     By default, it is set to False. So, to enable column resizing, you need to set it to True.

  2. ShowFooter: property used to set whether footer row is visible. [Ref: https://developer.mescius.com/componentone/docs/webforms/online-gridview/C1.Web.Wijmo.Controls.45~C1.Web.Wijmo.Controls.C1GridView.C1GridView~ShowFooter.html]
     
     By default, it is set to False. So, to display footer in grid, you need to set it to True.

  3. GroupAreaVisible: property does not exists. Please remove it and thank you for pointing it out.

  4. AutoGenerateColumns vs AutogenerateColumns: AutogenerateColumns property is correct while AutoGenerateColumns is incorrect. Thank you for pointing it out.
     
     [Ref: https://developer.mescius.com/componentone/docs/webforms/online-gridview/C1.Web.Wijmo.Controls.45~C1.Web.Wijmo.Controls.C1GridView.C1GridView~AutogenerateColumns.html]

  Regards,
  
  Uttkarsh.