Hi,

I got Out of memory exception (calling HtmlBuilder.CreateImageMap ) when I try to create a diagram made of 2 empty tablenodes connected with one DiagramLink .
The problem occurs when I set the HyperLink propery of the DiagramLink . If I don't set this property I will not have the link drawn between these nodes.

The problem can be reproduced in your Webapp sample if you add the following code to a new button :


[color=Navy]protected void Button1_Click(object sender, EventArgs e)
{
Random rnd = new Random();
diagram.DefaultShape = Shapes.Rectangle;

TableNode t = diagram.Factory.CreateTableNode(0, 0, 80, 50);
t.Style = TableStyle.RoundedRectangle;
t.RowHeight = 50;
t.RowCount = 0;
t.ColumnCount = 4;
t.Caption = "aaa";
t.CaptionHeight = 30;
t.Image = new Icon(
Server.MapPath("Images\\" + "ico" + rnd.Next(4).ToString() + ".ico")).
ToBitmap();
t.ImageAlign = ImageAlign.TopLeft;
diagram.Font = new Font("Arial Hebrew", 12f,FontStyle.Bold, GraphicsUnit.Pixel);

t.ResizeToFitText(true);

TableNode t2 = diagram.Factory.CreateTableNode(0, 0, 80, 50);
t2.Style = TableStyle.RoundedRectangle;

t2.RowHeight = 50;
t2.RowCount = 0;
t2.ColumnCount = 4;
t2.Caption = "bbb";
t2.CaptionHeight = 30;
t2.Image = new Icon(
Server.MapPath("Images\\" + "ico" + rnd.Next(4).ToString() + ".ico")).
ToBitmap();
t2.ImageAlign = ImageAlign.TopLeft;
t2.ResizeToFitText(true);

DiagramLink arrow = diagram.Factory.CreateDiagramLink(t, t2);
arrow.TextStyle = LinkTextStyle.Center;
arrow.HyperLink = "www.microsoft.com";
arrow.Text = "conn = 4 " + "\n\r";



}[/color]

below the stack trace :

Server Error in '/WebApp' Application.
--------------------------------------------------------------------------------


Out of memory.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.OutOfMemoryException: Out of memory.

Source Error:


Line 148: HtmlBuilder hb = new HtmlBuilder(fc);
Line 149: hb.LinkTarget = "_blank";
Line 150: return hb.CreateImageMap("map1");
Line 151: }
Line 152:


Source File: c:\Program Files\MindFusion\FlowChart.NET Trial Version\VS2005 (.NET 2.0)\Samples\C#\WebApp\MainForm.aspx.cs Line: 150

Stack Trace:


[OutOfMemoryException: Out of memory.]
System.Drawing.Drawing2D.GraphicsPath.Widen(Pen pen, Matrix matrix, Single flatness) +196329
System.Drawing.Drawing2D.GraphicsPath.Widen(Pen pen) +18
MindFusion.Diagramming.DiagramLink.x690418e55f0551ae() +281
MindFusion.Diagramming.HtmlBuilder.CreateImageMap(String mapName) +858
WebApp.MainForm.createMap() in c:\Program Files\MindFusion\FlowChart.NET Trial Version\VS2005 (.NET 2.0)\Samples\C#\WebApp\MainForm.aspx.cs:150
WebApp.MainForm.imgMap_PreRender(Object sender, EventArgs e) in c:\Program Files\MindFusion\FlowChart.NET Trial Version\VS2005 (.NET 2.0)\Samples\C#\WebApp\MainForm.aspx.cs:158
System.Web.UI.Control.OnPreRender(EventArgs e) +2117788
System.Web.UI.Control.PreRenderRecursiveInternal() +86
System.Web.UI.Control.PreRenderRecursiveInternal() +170
System.Web.UI.Control.PreRenderRecursiveInternal() +170
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2041

[b]Thanks,
Roberta[/b]

Hi,

Thanks for the answer,

I have done this change , but in this case I don't see  the line of the arrow drawn (only it's head appers on the center of the first node)

Thanks,

Roberta