Tuesday, June 22, 2010

Silverlight Organization Chart - Part 4 - Drawing

I have received too many messages to post the code for drawing the lines and the boxes for the Organization Chart, which actually the easy part after calculating the positions, but here it is:

Drawing Lines:

here in this method it is simply drawing a line

public void DrawLine(Canvas canvas, double x1, double y1, double x2, double y2)
{
Line line = new Line();
line.X1 = x1;
line.Y1 = y1;
line.X2 = x2;
line.Y2 = y2;
line.Stroke = Util.GetColorFromHex("#FF6495ed");
line.StrokeThickness = LinesStrokeThickness;
canvas.Children.Add(line);
}

Where LinesStrokeThickness = 1 And GetColorFromHex is a method that convert the RGB color to brush color:

public static SolidColorBrush GetColorFromHex(string myColor)
{
return new SolidColorBrush(
Color.FromArgb(
Convert.ToByte(myColor.Substring(1, 2), 16),
Convert.ToByte(myColor.Substring(3, 2), 16),
Convert.ToByte(myColor.Substring(5, 2), 16),
Convert.ToByte(myColor.Substring(7, 2), 16)
)
);
}

Drawing the box with the lines:

In this method it is drawing the NodeBox and set its values, also it put it in the right place based on the calculations.

public void AddBox(Canvas canvas, double x, double y, double? parentX, string ID, string name, string title, string department, string extension, bool root, bool subNodes)
{
NodeBox nb = new NodeBox(drawingScale);
nb.Name = ID;
nb.EmployeeName = name;
nb.Title = title;
nb.Department = department;
nb.Extension = extension;
nb.Width = buttonWidth;
nb.Height = buttonHeight;
nb.SetValue(Canvas.LeftProperty, x - nb.Width / 2);
nb.SetValue(Canvas.TopProperty, y);

canvas.Children.Add(nb);

// The line above the box
if (root)
DrawLine(canvas, x, y - minVerticalSpace, x, y);


// Draw the horizontal line to the parent
if (parentX != null)
DrawLine(canvas, x, y - minVerticalSpace, Convert.ToDouble(parentX), y - minVerticalSpace);


// Draw the line under the box
if (subNodes)
DrawLine(canvas, x, y + buttonHeight, x, y + buttonHeight + minVerticalSpace);

}

in-shaa Allah, this post help you to complete your organization chart based on Silverlight.

Columns associated with mappings have been deleted/renamed

I was working on a project where we are using the new linq with sharepoint 2010 , and I have received this error:

Message: Columns associated with mappings have been deleted/renamed.
Source : Microsoft.SharePoint.Linq
Target site : Void ValidateMapping()
Stack trace :
at Microsoft.SharePoint.Linq.EntityTracker.ValidateMapping()
at Microsoft.SharePoint.Linq.EntityTracker.SubmitChanges(ConflictMode failureMode, Boolean systemUpdate)
at Microsoft.SharePoint.Linq.DataContext.SubmitChanges(ConflictMode failureMode, Boolean systemUpdate)
at Microsoft.SharePoint.Linq.DataContext.SubmitChanges()
at MyNameSpace.MethodName()


And I did not find any article talking about this error: "Columns associated with mappings have been deleted/renamed" when searching on google.

After re-generating the class using the SPMetal command and receiving the same error, I found that the submitted list name is for another list. so just to share it with you :)