I've created custom column(DataGridViewButtonControlColumn) and cell(ButtonControlCell) classes to hold System.Windows.Forms.Button controls. The buttons get added to the columns and get displayed properly. Before I set the button as the value of a ButtonControlCell, I attach an event handler for "Click". But this handler is not called when a button is clicked.
I add the button to the DataGridView's controls in the overridden Paint function.
Are there any specific steps which I have to follow to register the Button with the DataGridView?
Code:
public class ButtonControlCell : DataGridViewTextBoxCell
{
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.
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protected override void Paint(System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
{
base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, formattedValue, errorText, cellStyle, advancedBorderStyle, paintParts);
if (btnVal != null)
{
btnVal.Size = new System.Drawing.Size(80, 20);
btnVal.Location = cellBounds.Location;
this.DataGridView.Controls.Add(btnVal);
}
}
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.
.
protected override void OnMouseClick(DataGridViewCellMouseEventArgs e)
{
// This is not called when the button is clicked (which is correct I guess)
base.OnMouseClick(e);
if (btnVal != null)
{
btnVal.PerformClick();
}
}
.
.
}
In the implementation:
private void AddButtonCell(string sText, EventHandler oEh, DataGridViewButtonColumn oClm, DataGridView dgvParent, int iRow, int iColumn)
{
Button btnTemp = new Button();
btnTemp.Height = 20;
btnTemp.Width = 60;
btnTemp.Anchor = AnchorStyles.Top;
btnTemp.Text = sText;
btnTemp.Click += new EventHandler(btnTemp_Click);
btnTemp.Tag = new Point(iRow, iColumn);
Controls.Add(btnTemp);
dgvParent.Rows[iRow].Cells[iColumn].Value = btnTemp;
}
void btnTemp_Click(object sender, EventArgs e)
{
Button btnSender = (Button)sender;
DataGridViewRow r = dgvResults.Rows[((Point)btnSender.Tag).X];
TagInfo oRet = new TagInfo((string)r.Cells[iTitleColIndex].Value, (string)r.Cells[iArtistColIndex].Value,
(string)r.Cells[iAlbumColIndex].Value);
oRet.imgAlbumArt = (System.Drawing.Image)r.Cells[iArtColIndex].Tag;
oParent.TagWithInfo(oRet, true);
}