Hi,

I am able to print preview each chart area on separate page but now  the order of pages are reversed so can you please help me to correct the order and print pages in correct order.

Here is the part of code I am using to check count of Chart Area and then calculate its height, width and then previewing each chart area on separate page.

public void Preview()

{

pageCount = Chart.ChartAreas.Count();

Manager.PrintPreview();

}

private void PrintDocument_PrintPage(object sender, PrintPageEventArgs ev)

{

try

{

BeforePrint(ev);

if (charts.Count == 0) {

foreach (ChartArea c in Chart.ChartAreas)

{

charts.Add(new Chart());

}

}

if (pageCount > 3 )

{

ev.HasMorePages = true;

pageCount = pageCount-1;

}

else if(pageCount>2)

{

ev.HasMorePages = true;

pageCount = pageCount - 1;

}

else if(pageCount>1)

{

ev.HasMorePages = true;

pageCount = pageCount - 1;

}

else

{

ev.HasMorePages = false;

pageCount = Chart.ChartAreas.Count();

}

{

float widthOfChartArea = Chart.ChartAreas[pageCount -1].Position.Width;

float heightOfChartArea = Chart.ChartAreas[pageCount - 1].Position.Height;

// Calculate first chart position rectangle

Rectangle chartAreaPosition = new Rectangle (ev.MarginBounds.X, ev.MarginBounds.Y, (Int32)widthOfChartArea, (Int32)heightOfChartArea);

// Scale chart position on the page

double chartScale = Math.Min((float)ev.MarginBounds.Width / (float)widthOfChartArea, (float)ev.MarginBounds.Height / (float)heightOfChartArea);

chartAreaPosition.Width = (int)((float)chartAreaPosition.Width * chartScale);

chartAreaPosition.Height = (int)((float)chartAreaPosition.Height * chartScale);

//Display units mean different thing depending if chart is rendered on the display or printed.

//Typically pixels for video displays, and 1/100 inch for printers.

if (ev.Graphics.PageUnit == GraphicsUnit.Display)

{

// Chart is always expecting to draw in pixels

ev.Graphics.PageUnit = GraphicsUnit.Pixel;

//Scale chart size from 1/100 of an inch to expected pixels.

chartAreaPosition.Width = (int)((float)chartAreaPosition.Width * ev.Graphics.DpiX / 100.0f);

chartAreaPosition.Height = (int)((float)chartAreaPosition.Height * ev.Graphics.DpiY / 100.0f);

chartAreaPosition.X = (int)((float)chartAreaPosition.X * ev.Graphics.DpiX / 100.0f);

chartAreaPosition.Y = (int)((float)chartAreaPosition.Y * ev.Graphics.DpiY / 100.0f);

}

//Chart.Printing.PrintPaint(ev.Graphics, chartAreaPosition);

Chart c = charts[pageCount-1 ];

ChartArea ca = Chart.ChartAreas[pageCount -1];

ca.AlignmentOrientation = AreaAlignmentOrientations.Vertical;

ca.AlignWithChartArea = "";

c.ChartAreas.Add(ca);

c.Printing.PrintPaint(ev.Graphics, chartAreaPosition);

}

}

finally

{

AfterPrint(ev);

}

if there are two chart areas then this code work fine but if there are more than three charts then they are printed in order like 2,1,3.. So please help me to fix this.

Hi Suraj,

After looking at your code I realized that you were not using any Infragistics controls in your application. I recommend contacting Microsoft support or Stack overflow support for resolving this ChartAreas PrintPreview issue as this is outside the scope of Infragistics Developer Support.

However, I noticed the below things in your code that might be a reason why ChartAreas are showing up in the wrong order in PrintPreview.

1. PageCount is equal to ChartAreas count and it is decremented by one when its >3, 2 and 1.  So this causing the previous Chart& pervious ChartArea to show up in the PrintPreview.
2. When you have two charts this works fine because you have ‘If’ followed by ‘else’ if the PageCount is >2 and1. But looking at the below forum post you don’t have an else part for if (PageCount>=3) statement which is causing the PageCount to decrement by one twice. So this is reversing the order in which your ChartAreas are being printed.
                http://www.infragistics.com/community/forums/p/108098/509152.aspx#509152

Thank you for contacting Infragistics Developer Support.

Sincerely,
Sahaja Kokkalagadda
Associate Software Developer

Hi

I have made few changes but still pages are displayed in reverse order. Here is part of code I am using in my application.

public static int pageCount = 1;

private

voidPrintDocument_PrintPage(objectsender, PrintPageEventArgsev)

        {

if

(pageCount < Chart.ChartAreas.Count())

                {

                    ev.HasMorePages = true;

                    pageCount --;

                }

else

                {

                    ev.HasMorePages = false;

                    pageCount = pageCount - Chart.ChartAreas.Count() + 1 ;

                }

Chart c = charts[pageCount - 1];

Here suppose if Chart.ChartAreas.Count() is 2, then 'if' block will execute making pageCount 2 and charts[1] will be accessed. In next iteration 'else' block will execute making pageCount=1 and charts[0] will be accessed. So these are accessed in Reverse order so please help me to display them in correct order.

Thanks.

Hi Suraj,

If ChartAreas count is two then if block will execute making the PageCount zero as it is previously 1 and accessing charts[-1] will give you an exception. I suggest decrementing the PageCount after you add the corresponding ChartArea to the Chart.

As you are using Microsoft Chart, Please contact Microsoft support for further assistance regarding this issue.

Sincerely,
Sahaja Kokkalagadda
Associate Software Developer