I have been working with charts in the Asp.Net framework and I found a nifty Interactivity I could add to the chart for each 'bar' of data in a bar chart. However no matter how I try to implement this from the msdn website found here at Interactivity in Windowms Forms, I keep getting multiple errors with:
this.Chart1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.Chart1_MouseMove);
as well as with
System.Windows.Forms.MouseEventArgs e
What this is supposed to do is whenever you highlight over a bar in the bar chart the event should fire and change a few effects such as changing the color.
The link above will redirect you to the code however It it also here:
this.Chart1.MouseMove += new System.Windows.Forms.MouseEventHandler(this.Chart1_MouseMove);
private void Chart1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e)
{
HitTestResult result = Chart1.HitTest( e.X, e.Y );
// Reset Data Point Attributes
foreach( DataPoint point in Chart1.Series[0].Points )
{
point.BackSecondaryColor = Color.Black;
point.BackHatchStyle = ChartHatchStyle.None;
point.BorderWidth = 1;
}
// If the mouse if over a data point
if(result.ChartElementType == ChartElementType.DataPoint)
{
// Find selected data point
DataPoint point = Chart1.Series[0].Points[result.PointIndex];
// Change the appearance of the data point
point.BackSecondaryColor = Color.White;
point.BackHatchStyle = ChartHatchStyle.Percent25;
point.BorderWidth = 2;
}
else
{
// Set default cursor
this.Cursor = Cursors.Default;
}
}
The errors that show up are:
- Default (page) does not containe a definition for cursor and no extension... (Nothing to import shown by intellisense)
- Chart does not have a definition for MouseMove
- MouseEventHandler could not be found
I cannot find any information anywhere else on how to accomplish and or get this Microsoft event to work.
