Text in a DataGrid RowHeader? 1

[andypandyswe]

How can I get text in a RowHeader (in a DataGrid control)? I've set the ColumnHeaders (for ex. to "model") with:

dataSet.Tables["resultTable"].Columns.Add("model", typeof(System.String));

...but I can't figure out how to do the same with the rows???

I would be most grateful if someone would point me in the right direction...

P.S.
The table has no children or anything...
D.S.

Andreas

 

[SHelton]

See

http://64.78.52.104/FAQ/WinForms/FAQ_c44c.asp#q896q

 

[andypandyswe]

Thanx but I can't make it work...

I get an IndexOutOfBounds -exception for the following line:

int yDelta = dataGrid1.GetCellBounds(row, 0).Height + 1;

I can't say I understand the whole thing which makes it hard to figure out what's wrong...

Here is the whole solution code (it's line 8 that causes problems)

private void dataGrid1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)

{

int row = TopRow();

int yDelta = dataGrid1.GetCellBounds(row, 0).Height + 1;

int y = dataGrid1.GetCellBounds(row, 0).Top + 2;



CurrencyManager cm = (CurrencyManager) this.BindingContext[dataGrid1.DataSource, dataGrid1.DataMember];

while(y < dataGrid1.Height - yDelta && row < cm.Count)

{

//get & draw the header text...

string text = string.Format("row{0}", row);

e.Graphics.DrawString(text, dataGrid1.Font, new SolidBrush(Color.Black), 12, y);

y += yDelta;

row++;

}

}

 

[SHelton]

Make sure that pointInCell00 is set in the forms Load event, not in the constructor.

 

[andypandyswe]

Thanx a million SHelton, you've saved my a*s! It's working now...

I don't suppose someone knows how to get rid of the last row? There is always one empty row at the bottom with an asterisk (*) in the rowHeader column...

Thanx again

Andreas

 

[SHelton]

You can remove the new row from the bottom of the datagrid by simply setting the ReadOnly property to true. However, if you want to remove the new row but still allow existing rows to be edited, you need to access the dataview of the datagrid, which has an AllowNew property:

((DataTable)dataGrid1.DataSource).DefaultView.AllowNew = false;

 

[andypandyswe]

Thanks once again SHelton, I don't need to edit the rows so the first solution works great... However, two other problems have now cropped up Do you (or anyone else) have any ideas?

Problem 1:

The rowHeader text that ends up outside the window (the dataGrid is too large to be seen in it's entirety without scrolling) isn't there. If you expand the window downwards they appear but if you use the scrollbars to try to see the part of the dataGrid not in view, the rowHeaders are empty. The text doesn't appear until you click each of the affected rows.

Problem 2:

I'm trying to show four different values, one above the other, in each cell. I've solved this by combining the four values into a single string with \n inbetween the values. The problem is that in the cell that is active (one always is right from the start) the \n seems to disappear because the values are all on top of eachother and on a single line. When you move the focus to another cell (by klicking it) that cell's values get garbled and the previous cell is alright. When I set the dataGrid's "Enabled" -value to false the problem goes away but the ability to scroll goes away with it, and since the datagrid is to large to fit in the window, that's not a working solution.

Anyone?

Andreas

 

[andypandyswe]

nobody? I the first problem is no biggie but the second one is too ugly...