I have a function that is called from cell_endedit. It moves a dataGridViewRow inside a dataGridView:
private void moveRowTo(DataGridView table, int oldIndex, int newIndex)
{
if (newIndex < oldIndex)
{
oldIndex += 1;
}
else if (newIndex == oldIndex)
{
return;
}
table.Rows.Insert(newIndex, 1);
DataGridViewRow row = table.Rows[newIndex];
DataGridViewCell cell0 = table.Rows[oldIndex].Cells[0];
DataGridViewCell cell1 = table.Rows[oldIndex].Cells[1];
row.Cells[0].Value = cell0.Value;
row.Cells[1].Value = cell1.Value;
table.Rows[oldIndex].Visible = false;
table.Rows.RemoveAt(oldIndex);
table.Rows[oldIndex].Selected = false;
table.Rows[newIndex].Selected = true;
}
at row table.Rows.Insert(newIndex, 1) i get the following error:
Unhandled exception of type "System.InvalidOperationException" in System.Windows.Forms.dll
Additional data: Operation is not valid because it results in a reentrant call to the SetCurrentCellAddressCore function.
It happens when I click another cell in process of editing current cell. How do i evade such error and have my row inserted correctly?
This error is caused by
Any operation that results in the active cell being changed while the DataGridView is still using it
As the accepted answer in this post.
The fix (I have verified): use BeginInvoke
to call moveRowTo
.
private void dataGridView2_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
this.BeginInvoke(new MethodInvoker(() =>
{
moveRowTo(dataGridView2, 0, 1);
}));
}
BeginInvoke
is an asynchronous call, so dataGridView2_CellEndEdit
returns immediately, and the moveRowTo
method is executed after that, at that time dataGridView2
is no longer using the currently active cell.
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