DataGridView Combobox column Error

[Greg]

I've populated all the cells in a combo box column with values from 1 -
50 using the following code:

foreach (DataGridViewRow row in uxTabSummary.Rows)
{
DataGridViewComboBoxCell cell = (DataGridViewComboBoxCell)
row.Cells["numRows"];
for (int i = 1; i < 51; i++)
{
cell.Items.Add(i);
}
}

However, after the user changes a value in the drop down combo box, and
moves the focus to another cell, a "System.ArgumentException:
DataGridViewComboBoxCell value is not valid".

Googling shows an extensive number of people suffering the same, but
I'm none the wiser.

Is there a simple solution to this?

Greg.

[Brian Tkatch]

Greg wrote:

I've populated all the cells in a combo box column with values from 1 -
50 using the following code:

foreach (DataGridViewRow row in uxTabSummary.Rows)
{
DataGridViewComboBoxCell cell = (DataGridViewComboBoxCell)
row.Cells["numRows"];
for (int i = 1; i < 51; i++)
{
cell.Items.Add(i);
}
}

However, after the user changes a value in the drop down combo box, and
moves the focus to another cell, a "System.ArgumentException:
DataGridViewComboBoxCell value is not valid".

Googling shows an extensive number of people suffering the same, but
I'm none the wiser.

Is there a simple solution to this?

Greg.

Perhaps you can try adding a DataTable to hold all those values for the
ComboBox, then setting the ComboBoxColumn.DataSource to the DataTable.
The ComboBoxColumn.ValueMember's data must be valid for the underlying
column in the DataGridView.

B.

[Greg]

Great, thanks!

Brian Tkatch wrote:

Greg wrote:

I've populated all the cells in a combo box column with values from 1 -
50 using the following code:

foreach (DataGridViewRow row in uxTabSummary.Rows)
{
DataGridViewComboBoxCell cell = (DataGridViewComboBoxCell)
row.Cells["numRows"];
for (int i = 1; i < 51; i++)
{
cell.Items.Add(i);
}
}

However, after the user changes a value in the drop down combo box, and
moves the focus to another cell, a "System.ArgumentException:
DataGridViewComboBoxCell value is not valid".

Googling shows an extensive number of people suffering the same, but
I'm none the wiser.

Is there a simple solution to this?

Greg.

Perhaps you can try adding a DataTable to hold all those values for the
ComboBox, then setting the ComboBoxColumn.DataSource to the DataTable.
The ComboBoxColumn.ValueMember's data must be valid for the underlying
column in the DataGridView.

B.