Hello,

How would you create the following columns through the code-behind class?

        <ig:BoundDataField DataFieldName="ID" Key="ID" Header-Text="ID" />
                <ig:BoundDataField DataFieldName="Fname" Key="Fname" Header-Text="First Name" Width="230px" />
                <ig:BoundDataField DataFieldName="Sname" Key="Sname" Header-Text="Second Name" Width="150px" />

I've tried to add the following to your sample:

private void AddBandColumn(IBand band, string dataField, string caption, bool hidden) //, AllowUpdate updatable)
    {
      BoundDataField column = new BoundDataField(true);
      column.DataFieldName = dataField;
      column.Key = dataField;
      column.Hidden = hidden;
      column.Header.Text = caption;
      band.Columns.Add(column);
    }

    private void CreateColumns()
    {
        this.whdg1.Bands.Clear();
        this.whdg1.Columns.Clear();

        this.whdg1.DataKeyFields = "ID";

        AddBandColumn(this.whdg1, "ID", "ID", false);
        AddBandColumn(this.whdg1, "Fname", "First Name", false);
        AddBandColumn(this.whdg1, "Sname", "Second Name", false);

          //Second Level - Child
        Band band = new Band();
        AddBandColumn(band, "ID", "ID", false);
        AddBandColumn(band, "City", "City", false);
        AddBandColumn(band, "Street", "Street", false);
        this.whdg1.GridView.Bands.Add(band);
    }

I even tried adding the parent columns to  this.whdg1.GridView.Columns,  but did not work.

Thanks

I also wanted to add that this feels like bad practice to be setting column properties in the InitializeRow event.  It seems like there should be a better place to be doing this in order to not have it called thousands of times with each of my rows. 

Hi Rado,

I couldn't get the approach to work with my code, so I decided to take baby steps.  If I take your exact example, it runs as expected.  I then replace the call to GetPersons with my own call to retrieve my datatable (confirmed that the datatable is returned) and then replaced the bound columns with bound columns that match my datatable.  No other code changes.  I then get this error which really doesn't tell me anything.  Any ideas?

Thanks,

Tami

InvalidOperationException]
   Infragistics.Web.UI.GridControls.WebHierarchicalDataGrid.DataBind() +1082
   Infragistics.Web.UI.GridControls.WebHierarchicalDataGrid.EnsureDataBound() +70
   System.Web.UI.WebControls.BaseDataBoundControl.OnPreRender(EventArgs e) +22
   Infragistics.Web.UI.Framework.Data.HierarchicalDataBoundControlMain.OnPreRender(EventArgs e) +196
   Infragistics.Web.UI.GridControls.WebHierarchicalDataGrid.OnPreRender(EventArgs e) +37
   System.Web.UI.Control.PreRenderRecursiveInternal() +80
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842

Thanks for the suggestion, I will work on changing my code to the suggestion.  I also need to be able to control the columns of the parent band on load though and your example is only for children.    The problem is that my parent band will have a varying number of columns, so I can't define my bound columns in the html.  Any suggestions?

Hi pwerey,

Thanks for the sample.  I see the behavior. This is an issue with the control which exists in the RTM version. The good news is that it was resolved and you could take advantage of the fix with the latest service release, just download it and upgrade.

Hope this helps.