Hello, I have the following code at the bottom which should load data automatically into the RadListView at form load. However, the text is not visible in the RadListView. I can see the exact number of rows being returned from the SQL database into the RadListView. why is the text not visible?

Thank you for your help in advance! :)

private void MemberUC_Load(object sender, EventArgs e)
        {
            //fill main panel
            this.Dock = DockStyle.Fill;
           
            using (SqlConnection con = new SqlConnection(*connection string string goes here*))
            {
                con.Open();
                cmd = new SqlCommand("SELECT FirstName, MiddleName, LastName, MemberType FROM dbo.MemberInformation");
                cmd.Connection = con;
                dr = cmd.ExecuteReader();
                while (dr.Read())
                {
                    ListViewItem item = new ListViewItem();
                    item.SubItems.Add(dr["FirstName"].ToString());
                    item.SubItems.Add(dr["MiddleName"].ToString());
                    item.SubItems.Add(dr["LastName"].ToString());
                    item.SubItems.Add(dr["MemberType"].ToString());
                    memberDetailsLV.Items.Add(item);
                }
            }
        }

Is there any maximum number of GridViewColumnGroup that you can assign to a RadGrid? I can add 23 groups (each contain subgroup) but when  I add the 24 group I get :
"An unhandled exception of type 'System.NullReferenceException' occurred in Telerik.WinControls.GridView.dll

Additional information: Object reference not set to an instance of an object."
I use the DLL from 2014. Any advice is helpful. I thank you much for your help and time.
My function is 
[QOUTE][ColumnGroupsViewDefinition view = new ColumnGroupsViewDefinition();

            // Group Header

            view.ColumnGroups.Add(new GridViewColumnGroup(""));
            view.ColumnGroups[0].Rows.Add(new GridViewColumnGroupRow());
            view.ColumnGroups[0].Rows[0].Columns.Add(dg_validare_antecalcul.Columns["pk_pr_cip"]);
            view.ColumnGroups[0].Rows[0].Columns.Add(dg_validare_antecalcul.Columns["Bifa"]);
            view.ColumnGroups[0].Rows[0].Columns.Add(dg_validare_antecalcul.Columns["Cip"]);
            view.ColumnGroups[0].Rows[0].Columns.Add(dg_validare_antecalcul.Columns["Program"]);
            view.ColumnGroups[0].Rows[0].Columns.Add(dg_validare_antecalcul.Columns["Reper"]);
            view.ColumnGroups[0].Rows[0].Columns.Add(dg_validare_antecalcul.Columns["Denumire Reper"]);
            view.ColumnGroups[0].ShowHeader = false;

            // CSTA

            GridViewColumnGroup oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTA";

            GridViewColumnGroup oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Pret de vanzare unitar";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTA_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTA_cip"]);

            dg_validare_antecalcul.Columns["CSTA_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTA_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // cost complet

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "COST COMPLET";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["cost_complet_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["cost_complet_cip"]);

            dg_validare_antecalcul.Columns["cost_complet_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["cost_complet_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            oGroup.ShowHeader = false;
            view.ColumnGroups.Add(oGroup);

            // CSTB

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTB";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Profit";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTB_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTB_cip"]);

            dg_validare_antecalcul.Columns["CSTB_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTB_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTC

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTC";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Ch. generale de administratie";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTC_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTC_cip"]);

            dg_validare_antecalcul.Columns["CSTC_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTC_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTD

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTD";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Costuri desfacere";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTD_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTD_cip"]);

            dg_validare_antecalcul.Columns["CSTD_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTD_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTE

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTE";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Cost de productie antecalculat-total";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTE_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTE_cip"]);

            dg_validare_antecalcul.Columns["CSTE_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTE_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTF

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTF";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Ch. indirecte af. Diviziei strategice";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTF_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTF_cip"]);

            dg_validare_antecalcul.Columns["CSTF_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTF_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTG

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTG";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Ch. indirecte af. Diviziei conducatoare";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTG_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTG_cip"]);

            dg_validare_antecalcul.Columns["CSTG_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTG_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTH

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTH";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Cost de productie antecalculat-propriu";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTH_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTH_cip"]);

            dg_validare_antecalcul.Columns["CSTH_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTH_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTI

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTI";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Ch. indirecte de sectie";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTI_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTI_cip"]);

            dg_validare_antecalcul.Columns["CSTI_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTI_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTJ

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTJ";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Materiale directe";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTJ_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTJ_cip"]);

            dg_validare_antecalcul.Columns["CSTJ_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTJ_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTK

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTK";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Nevoi proprii directe";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTK_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTK_cip"]);

            dg_validare_antecalcul.Columns["CSTK_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTK_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTL

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTL";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Chelt. cu scule";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTL_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTL_cip"]);

            dg_validare_antecalcul.Columns["CSTL_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTL_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTM

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTM";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Ch. transp-aprov.";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTM_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTM_cip"]);

            dg_validare_antecalcul.Columns["CSTM_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTM_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTN

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTN";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Manopera directa";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTN_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTN_cip"]);

            dg_validare_antecalcul.Columns["CSTN_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTN_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTO

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTO";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Indexare manop. directa ramasa";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTO_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTO_cip"]);

            dg_validare_antecalcul.Columns["CSTO_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTO_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTP

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTP";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Ch. salarii colaboratori";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTP_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTP_cip"]);

            dg_validare_antecalcul.Columns["CSTP_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTP_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTQ

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTQ";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "C.A.S. si alte fonduri af.(manop. directe+sporuri)";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTQ_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTQ_cip"]);

            dg_validare_antecalcul.Columns["CSTQ_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTQ_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTR

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTR";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "S.D.V. directe";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTR_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTR_cip"]);

            dg_validare_antecalcul.Columns["CSTR_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTR_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTS

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTS";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Alte costuri directe";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTS_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTS_cip"]);

            dg_validare_antecalcul.Columns["CSTS_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTS_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTT

            oGroup = new GridViewColumnGroup();
            oGroup.Text = "CSTT";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Colaborari directe";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTT_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTT_cip"]);

            dg_validare_antecalcul.Columns["CSTT_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTT_cip"].HeaderText = "CIP";

            oGroup.Groups.Add(oSubGroup);
            view.ColumnGroups.Add(oGroup);

            // CSTU
            //GridViewColumnGroup oGroup1 = new GridViewColumnGroup();
            //oGroup1.Text = "";

            GridViewColumnGroup oGroupU = new GridViewColumnGroup();
            oGroupU.Text = "CSTU";

            oSubGroup = new GridViewColumnGroup();
            oSubGroup.Text = "Utilitati directe";
            oSubGroup.Rows.Add(new GridViewColumnGroupRow());
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTU_unitar"]);
            oSubGroup.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTU_cip"]);

            dg_validare_antecalcul.Columns["CSTU_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTU_cip"].HeaderText = "CIP";

            oGroupU.Groups.Add(oSubGroup);
            //oGroup1.Groups.Add(oGroupU);
            view.ColumnGroups.Add(oGroupU);

            // CSTV

            GridViewColumnGroup oGroupV = new GridViewColumnGroup();
            oGroupV.Text = "CSTV";

            GridViewColumnGroup oSubGroupV = new GridViewColumnGroup();
            oSubGroupV.Text = "Corectii";
            oSubGroupV.Rows.Add(new GridViewColumnGroupRow());
            oSubGroupV.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTV_unitar"]);
            oSubGroupV.Rows[0].Columns.Add(dg_validare_antecalcul.Columns["CSTV_cip"]);

            dg_validare_antecalcul.Columns["CSTV_unitar"].HeaderText = "UNITAR";
            dg_validare_antecalcul.Columns["CSTV_cip"].HeaderText = "CIP";

            oGroupV.Groups.Add(oSubGroupV);
            //oGroup1.Groups.Add(oGroupV);
            //oGroup1.ShowHeader = false;
            //view.ColumnGroups.Add(oGroup1);
            view.ColumnGroups.Add(oGroupV);
            dg_validare_antecalcul.ViewDefinition = view;[/QUOTE]
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Set categorical axis axisplotmode to OnTicksPadded
Increased Padding on Chart.View.Margins (this seems to be the padding between the chart itself and stuff outside the chart)

See the picture below for an example. Basically datapoints aren't fully displaying because the points are being cutoff because the last Y-axis Tick is literally at the same Y location as the top of the chart. I'd like to move it down a bit to give the datapoints some space. Essentially create extra space around the edges of the axes. I have one axes that's a categorical axis and one that's a linear axis.

Create BarSeries:

            _barModel = new BarSeries
            {
                ValueMember = "Model",
                CategoryMember = "N",
                LegendTitle = "Model",

     IsVisible = false
            };
            _radChartViewGss.Series.Add(_barModel);

Set data source (dataTable):

            _radChartViewGss.DataSource = _table;

After this, changing the property _barModel.IsVisible = true does not lead to anything - the bar series is not visible.

Why???

Hi.

Probably an easy question, but trying for a while, searching in the doc and the forum, I could not find the solution.

When I use a legend in radchartview, it shows the items below each other (vertically). But I would like to show them next to each other (horizontally).

Among others, I tried:

 this.radChartView2.ChartElement.LegendElement.TextOrientation = Orientation.Horizontal;

or

 this.radChartView2.ChartElement.LegendElement.StackElement.TextOrientation = Orientation.Horizontal;

But it does not seem to work...

Thank you