Chart Tooltips in UI for WinForms

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Chart Tooltips

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Chart (obsolete as of Q1 2013)

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answered on 28 Feb 2011, 03:09 AM

Ahh... So if you give your series item a name, you can then set ActiveRegionToolTip to #ITEM, #% and get the item's name with the percent it takes up in the pie chart. As so:

ChartSeries tableRowsSeries = new ChartSeries();

tableRowsSeries.Name = "Table Rows";

tableRowsSeries.Type = ChartSeriesType.Pie;

tableRowsSeries.Appearance.LabelAppearance.Visible = false;

tableRowsSeries.ActiveRegionToolTip = "#ITEM : #%";

foreach (DataRow dr in dt.Rows)

{

dataRows = Convert.ToInt32(dr["Rows"]);

ChartSeriesItem csi = new ChartSeriesItem();

csi.YValue = dataRows;

csi.Name = dr["Table Name"].ToString();

tableRowsSeries.AddItem(csi);

}

radChart1.Series.Add(tableRowsSeries);