Group expand collapse

[IT Development]

Hello,

 

Having some problems with the radgridview.

In the CellFormatting event i add some backgroundcolors and a progressbar to the grid.

All works fine here.

 

But when I collapse and expand the groups in the grid. The progressbar is moving up and down a copple a rows ( not corresponding with the data in the rows).

 

Any suggestions?

 

Kind regards,

 

Tim van Rooijen

 

 

private void radGridViewProductie_CellFormatting(object sender, Telerik.WinControls.UI.CellFormattingEventArgs e)

        {

            // exclude header element in the data column                      

            if (e.CellElement.ColumnInfo is GridViewDataColumn && !(e.CellElement.RowElement is GridTableHeaderRowElement))

            {

                GridViewDataColumn column = (GridViewDataColumn)e.CellElement.ColumnInfo;

                GridViewRowInfo gvri = e.CellElement.RowInfo;

                if (gvri != null)

                {

                    SchrapView Sv = (SchrapView)gvri.DataBoundItem;

                    if (Sv != null)

                    {

                        //Voor percentage velden worden weergegeven met een progressbar

                        if (column.FieldName == "VorigeBewerking.PercentageCompleet" || column.FieldName == "Nacalculatie.PercentageCompleet")

                        {

                            // check if the progress bar is already added to the cell                          

                            if (e.CellElement.Children.Count > 0)

                                return;

                            RadProgressBarElement element = new RadProgressBarElement();

                            e.CellElement.Children.Add(element);

                            element.StretchHorizontally = true;

                            element.StretchVertically = true;

                            // extract the value in the cell, convert it to a value

                            // usable in the progress bar element and assign it to the

                            // progress bar Value1 and Text properties

                            int discountPercentage = Convert.ToInt32(e.CellElement.Text);

                            if (discountPercentage > 100)

                            {

                                element.Value1 = 100;

                            }

                            else

                            {

                                element.Value1 = discountPercentage;

                            }

                           element.Text = discountPercentage.ToString() + "%";                

                        

                        }

 

                        if (column.FieldName == "Indicator")

                        {

                            if (!Sv.AchterGrondKleur.IsEmpty)

                            {

                                e.CellElement.BackColor = Sv.AchterGrondKleur;

                                e.CellElement.DrawFill = true;

                            }

                            else

                            {

                                e.CellElement.BackColor = Color.Transparent;

                                e.CellElement.BackColor2 = Color.Transparent;

                                e.CellElement.DrawFill = true;

                            }

                        }

                    }

                }

[Jack]

Hello Tim,

I think the issue is that you initialize the progress bar only upon creation. You should initialize it every time when CellFormatting is fired. Here is the modified code:

private void radGridViewProductie_CellFormatting(object sender, Telerik.WinControls.UI.CellFormattingEventArgs e)
{
    // exclude header element in the data column
    if (e.CellElement.ColumnInfo is GridViewDataColumn && !(e.CellElement.RowElement is GridTableHeaderRowElement))
    {
        GridViewDataColumn column = (GridViewDataColumn)e.CellElement.ColumnInfo;
        GridViewRowInfo gvri = e.CellElement.RowInfo;
        if (gvri != null)
        {
            SchrapView Sv = (SchrapView)gvri.DataBoundItem;
            if (Sv != null)
            {
                //Voor percentage velden worden weergegeven met een progressbar
                if (column.FieldName == "VorigeBewerking.PercentageCompleet" || column.FieldName == "Nacalculatie.PercentageCompleet")
                {
                    RadProgressBarElement element = null;
                    if (e.CellElement.Children.Count == 0)
                    {
                        element = new RadProgressBarElement();
                        e.CellElement.Children.Add(element);
                        element.StretchHorizontally = true;
                        element.StretchVertically = true;
                    }
                    else
                    {
                        element = (RadProgressBarElement)e.CellElement.Children[0];
                    }

                    // extract the value in the cell, convert it to a value
                    // usable in the progress bar element and assign it to the
                    // progress bar Value1 and Text properties
                    int discountPercentage = Convert.ToInt32(e.CellElement.Text);
                    if (discountPercentage > 100)
                    {
                        element.Value1 = 100;
                    }
                    else
                    {
                        element.Value1 = discountPercentage;
                    }
                   element.Text = discountPercentage.ToString() + "%";
                }
                if (column.FieldName == "Indicator")
                {
                    if (!Sv.AchterGrondKleur.IsEmpty)
                    {
                        e.CellElement.BackColor = Sv.AchterGrondKleur;
                        e.CellElement.DrawFill = true;
                    }
                    else
                    {
                        e.CellElement.BackColor = Color.Transparent;
                        e.CellElement.BackColor2 = Color.Transparent;
                        e.CellElement.DrawFill = true;
                    }
                }
            }
        }
    }
}

I hope this helps. If the issue continues to appear, please send me your application and I will try to find a solution.

Should you have any other questions, don't hesitate to ask.

Kind regards,
Jack
the Telerik team

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[IT Development]

it works!

Thanks for the support

Kind regards,

Tim van Rooijen