How to wrap text without spaces in DataGridView (vb.net / c#)

Question

I have already set the DataGridView.DefaultCellStyle.WrapMode = DataGridViewTriState.True

But this WrapMode does not wrap columns with single word without spaces. Is there any way we can "break-word" along with WrapMode ? Or any other solution?

Answer 1

You can play with the CellPainting event.

The DrawString respects the bounding Rectangle and wraps wherever it hits the right boundary.

You can uncomment the condition to apply only to cells which go over a limit you set. For best control you would have to measure the length of the FormattedValue to find out the exact limit.

You may also want to fine-tune the draw position, if you have special alignments in your cells.

private void DGV1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
    if (e.Value == null) return;
    if (e.FormattedValue.GetType() != typeof( System.String) ) return;
    bool selected = (e.State & DataGridViewElementStates.Selected) 
                            == DataGridViewElementStates.Selected;
    string s = e.FormattedValue.ToString();

    //if (s.Length > 20) // Apply to all or only those breaking your limits
    {
        e.PaintBackground(e.CellBounds, selected);
        e.Graphics.DrawString(s, DGV1.Font, selected ? 
                   SystemBrushes.HighlightText : SystemBrushes.ControlText, 
                   new Rectangle(e.CellBounds.X + 1, e.CellBounds.Y + 2, 
                                 e.CellBounds.Width - 2, e.CellBounds.Height - 4));
        e.Handled = true;
    }
}

Setting the Row.Heights is up to you. If you go for measuring the FormattedValue you will get a RectangleF back; so you'll also know the necessary Height for that Cell . Comparing it to the current Row.Height you could gradually adapt it for each Row , ie make it larger each time it is necessary.. I didn't include, because it will result in Rows with varying Heights and that may be unwanted/unnecessary in your case. If you're interested, I can post the code, though..

Answer 2

hi Shimply Add following Line after DataBinding

DGLogs.Columns[0].DefaultCellStyle.WrapMode=DataGridViewTriState.True;

set
AutosizecolumnMode=AllCells
AutosizeRowMode=AllCells

in Property windows

Output will be as hown belo Image