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are there UML diagrams for C# API?

P: n/a
Hi all,

I am having difficulties in understanding DataGrid,DataSet,DataTable
etc classes that work to have DataGrid work.

I am looking for UML diagram that depicts relations between those
classes. I don't want to read tons of text written but MSDN or anybody
else. After all "picture is worth thousand words" was not coined by
dump people.

It would be very helpful if you can point me to some url that has UML
diagrams for C# API. Again, the MS typical diagrams like MFC won't help
much I guess here, UML would be able clear more things...

Regards,
Maulin

Nov 16 '05 #1
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5 Replies


P: n/a
What? Nobody knows if there is UML or any kind of diagrams available
for C# api?

That would be too bad :(

I ask for diagram because after being used to Java API I find C# API
documentation just worthless. Don't they know english?

Regards,
Maulin
Maulin Vasavada wrote:
Hi all,

I am having difficulties in understanding DataGrid,DataSet,DataTable
etc classes that work to have DataGrid work.

I am looking for UML diagram that depicts relations between those
classes. I don't want to read tons of text written but MSDN or anybody else. After all "picture is worth thousand words" was not coined by
dump people.

It would be very helpful if you can point me to some url that has UML
diagrams for C# API. Again, the MS typical diagrams like MFC won't help much I guess here, UML would be able clear more things...

Regards,
Maulin


Nov 16 '05 #2

P: n/a
I typed "C# UML diagram" into Google and came up with a bunch of hits.

As well, VS2005 is coming with a bunch of code refactoring and code
design features in it, including (correct me if I'm wrong), UML-to-C#
and C#-to-UML features.

When I moved from Java to C#, it too cost me time and a bit of
frustration getting my head around the MSDN documentation format. It's
now second nature to read the stuff and figure out how to do things.

The only thing I miss is knowing--for sure--which exceptions the
various methods and properties throw. :(

Nov 16 '05 #3

P: n/a
Hi Bruce,

Thanks for reply.

I did the search for C# UML as well before posting but that didn't give
links where I can find UML diagram for "c# api" you know. I am not
really looking for UML generation or design features in IDE, I am
looking for diagram of the system api itself :(

But I get what you are saying, it will take time to get used to this
MSDN stuff.

I will keep looking.

Now as we are on this thread, I would ask one more question, actually I
am trying to develop Windows Forms application (not Web.UI stuff), and
I wanted to put LinkLabel in the DataColumn of DataGrid but I am not
able to do so. I got this below link where the guy extended
DataGridColumnStyle to have combobox but I can't figure out how to put
LinkLabel instead of combobox used there.
http://www.c-sharpcorner.com/winform...ataGridSKJ.asp

The issue with that example code is I have to setup too many things to
run it as its using Sql. I appreciate his sharing but I wish he would
have done it more simplistically to show an example rather than having
those sql things in there.

I copied his code and all and tried to understand by putting Enum
object in combobox but all in vein...though I now understand those
DataSet and all upto some extent. So at the end I decided to extend the
DataGridColumnStyle to put LinkLabel and copied Paint method from his
code and have mixed things right now. Here is the code which is not
working, :)
namespace TestUIApplication
{
public class LinkColumn:DataGridColumnStyle
{
int xMargin = 5;
int yMargin = 5;

private LinkLabel linkLabel;

//
// Create a new column - DisplayMember, ValueMember passed by string
//
public LinkColumn(LinkLabel linkLabel)
{
this.linkLabel = linkLabel;
}

protected override void Abort(int RowNum)
{
MessageBox.Show(new Form(),"in Abort()");
}
protected override bool Commit(CurrencyManager DataSource,int RowNum)
{
MessageBox.Show(new Form(),"in Commit()");
return true;
}
protected override void ConcedeFocus()
{
MessageBox.Show(new Form(),"in ConcedeFocus()");
}
protected override void Edit(CurrencyManager Source ,int
Rownum,Rectangle Bounds, bool ReadOnly,string InstantText, bool
CellIsVisible)
{
MessageBox.Show(new Form(),"in Edit()");
}
protected override int GetMinimumHeight()
{
return linkLabel.PreferredHeight + yMargin;
}
protected override int GetPreferredHeight(Graphics g ,object Value)
{
System.Diagnostics.Debug.WriteLine("GetPreferredHe ight()");
return FontHeight+yMargin;
}
protected override Size GetPreferredSize(Graphics g, object Value)
{
MessageBox.Show("GetPreferredSize():"+linkLabel.Te xt);
Size Extents = Size.Ceiling(g.MeasureString(linkLabel.Text,
this.DataGridTableStyle.DataGrid.Font));
Extents.Width += xMargin * 2 + DataGridTableGridLineWidth ;
Extents.Height += yMargin;
return Extents;
}
protected override void Paint(Graphics g,Rectangle
Bounds,CurrencyManager Source,int RowNum)
{
Paint(g, Bounds, Source, RowNum, false);
}
protected override void Paint(Graphics g,Rectangle
Bounds,CurrencyManager Source,int RowNum,bool AlignToRight)
{
string Text = linkLabel.Text;
PaintText(g, Bounds, Text, AlignToRight);
}

private void PaintText(Graphics g ,Rectangle Bounds,string Text,bool
AlignToRight)
{
Brush BackBrush = new SolidBrush(this.DataGridTableStyle.BackColor);
Brush ForeBrush= new SolidBrush(this.DataGridTableStyle.ForeColor);
PaintText(g, Bounds, Text, BackBrush, ForeBrush, AlignToRight);
}
private void PaintText(Graphics g , Rectangle TextBounds, string
Text, Brush BackBrush,Brush ForeBrush,bool AlignToRight)
{
System.Console.WriteLine("in paint");
Rectangle Rect = TextBounds;
RectangleF RectF = Rect;
StringFormat Format = new StringFormat();
if(AlignToRight)
{
Format.FormatFlags = StringFormatFlags.DirectionRightToLeft;
}
switch(this.Alignment)
{
case HorizontalAlignment.Left:
Format.Alignment = StringAlignment.Near;
break;
case HorizontalAlignment.Right:
Format.Alignment = StringAlignment.Far;
break;
case HorizontalAlignment.Center:
Format.Alignment = StringAlignment.Center;
break;
}
Format.FormatFlags =Format.FormatFlags;
Format.FormatFlags =StringFormatFlags.NoWrap;
g.FillRectangle(BackBrush, Rect);
Rect.Offset(0, yMargin);
Rect.Height -= yMargin;
g.DrawString("maulin", this.DataGridTableStyle.DataGrid.Font,
ForeBrush, RectF, Format);
Format.Dispose();
}

private int DataGridTableGridLineWidth
{
get
{
if(this.DataGridTableStyle.GridLineStyle ==
DataGridLineStyle.Solid)
{
return 1;
}
else
{
return 0;
}
}
}
}
}
And here is the method that loads things,

private void Form1_Load(object sender, System.EventArgs e)
{
listBox1.DataSource = this.coloursCollection;

DataSet ds = new DataSet("ColoursSet");
DataTable dt = ds.Tables.Add("ColoursTable");
dt.Columns.Add("ColoursColumn",typeof(LinkLabel));

LinkLabel ll = new LinkLabel();
ll.Name = "maulin";
ll.Text ="Maulin";

DataRow dr = dt.NewRow();
dr["ColoursColumn"] = ll;
dt.Rows.Add(dr);

GridTableStyle = new DataGridTableStyle();
GridTableStyle.MappingName = "ColoursSet";

GridTableStyle.GridColumnStyles.Add(new LinkColumn(ll));
GridTableStyle.GridColumnStyles[0].MappingName =
"ColoursTable";//EDIT ME
GridTableStyle.GridColumnStyles[0].HeaderText = "test";
GridTableStyle.GridColumnStyles[0].Alignment =
HorizontalAlignment.Left;
GridTableStyle.GridColumnStyles[0].Width = 700;
GridTableStyle.GridColumnStyles[0].NullText = string.Empty;

dataGrid1.DataSource = ds;
dataGrid1.DataMember = "ColoursTable";
dataGrid1.TableStyles.Add(GridTableStyle);
}
Please ignore my table,column names and all , its all the code after
much playing around so far and names might not make sense...
Do you have any idea how to do this? If you wish I can repost this same
thing so it appears in people's search as it would be in appropriate
thread...otherwise somebody might just go into abysmal I am in...:)
Thanks ton for helping.
Regards,
Maulin

Bruce Wood wrote:
I typed "C# UML diagram" into Google and came up with a bunch of hits.
As well, VS2005 is coming with a bunch of code refactoring and code
design features in it, including (correct me if I'm wrong), UML-to-C#
and C#-to-UML features.

When I moved from Java to C#, it too cost me time and a bit of
frustration getting my head around the MSDN documentation format. It's now second nature to read the stuff and figure out how to do things.

The only thing I miss is knowing--for sure--which exceptions the
various methods and properties throw. :(


Nov 16 '05 #4

P: n/a
Yes, you should probably repost with a new thread and a new title. I
haven't used DataGrid yet, so I don't really know how they work.
(However, judging from all of the posts they generate here, they're
either difficult, or popular, or both. :)

As well, since your question is specific to how to do something with a
DataGrid, you might want to post to
microsoft.public.dotnet.windowsforms.

Nov 16 '05 #5

P: n/a
Thank you Bruce. In Bruce we believe :)

I posted on microsoft.public.dotnet.framework.windowsforms news group.
Lets where I get...

Regards,
Maulin

Nov 16 '05 #6

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