select cell in datagridview

How do you programatically select a cell in a datagridview?
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Bob LearnedCommented:
  this.dataGridView1.CurrentRow = index;

  this.dataGridView1.CurrentCell = this.dataGridView1[row, column];

yanci1179Author Commented:
after I validate a cetain cell, I want to tab to the next cell

I tried:

SendKeys.Send("{TAB}")  and the application stalls
I tried:

DgvSched.CurrentCell = DgvSched[3, DgvSched.CurrentRow.Index];

and also

DgvSched.CurrentCell = DgvSched[3, e.RowIndex];

and I get the following error:

An unhandled exception of type 'System.StackOverflowException' occurred in mscorlib.dll

when I remove the above statement the error does not come up.

Bob LearnedCommented:
Where are you calling this from?  My guess is the CurrentCellChanged event handler.  If so, then you are going to get an infinite loop.

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yanci1179Author Commented:
Yes, why does is go to an infinite loop?  What can I do to select the cell?

I don't know the row number only the column number so this.dataGridView1[row, column];   won't help if I don't know the row number, right?  I do know that the row number is the currentRow, is there a way of getting the index of the currentRow?

I've been trying to get this all day with no luck.  
Bob LearnedCommented:
Let me see if I can explain it this way:

 Goto (1,1)

When you change the cell in CurrentCellChanged, it fires CurrentCellChanged again.  One way around that is to define a module-level flag variable:

private bool _isChangingCell = false;

private void CurrentCellChanged(...

   if (!m_isChangingCell)
     _isChangingCell = true;

     this.DgvSched.CurrentCell = DgvSched[3, DgvSched.CurrentRow.Index];
     _isChangingCell = false;



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yanci1179Author Commented:
thanks the last one worked!!
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