Janus 4 GridEx disable rows - vb.net

Question

I have have a Janus 4 GridEx control which includes a checkbox column.
I need to be able to disable certain rows (i.e make them non selectable/greyed out) depending the value of a particular column. The data for the grid is loaded from a database.
Any help would be appreciated.

Answer 1

You have to utilize the LoadingRow and SelectionChanged events of the Janus Grid.
This is a sample code: ( Here I'm checking the value of a particular column to be divided by 2)
private void grdEx_LoadingRow(object sender, Janus.Windows.GridEX.RowLoadEventArgs e)
{
if (Convert.ToInt32(e.Row.Cells["ID"].Value) % 2 == 0)
{
e.Row.RowStyle = new GridEXFormatStyle(e.Row.Table.RowFormatStyle);
e.Row.RowStyle.BackColor = Color.Gray;
}
}
private void grdEx_SelectionChanged(object sender, EventArgs e)
{
if (Convert.ToInt32(grdEx.GetValue("ID")) % 2 == 0)
{
if (grdEx.Row >= 0)
{
if (grdEx.Row == grdEx.RowCount - 1)
grdEx.Row = grdEx.Row - 1;
else
grdEx.Row = grdEx.Row + 1;
}
}
}

Answer 2

Depending on the Checkbox column , just see the sample code:
private void grdEX1_FormattingRow(object sender, RowLoadEventArgs e)
{
if (e.Row.RowIndex > -1 && e.Row.RowIndex < grdEX1.RowCount)
{
for (int i = 0; i < grdEX1.RootTable.Columns.Count; i++)
{
if (!Convert.ToBoolean(e.Row.Cells["checkboxCol"].Value))//checked So editable
{
e.Row.Cells[i].FormatStyle = new GridEXFormatStyle() { BackColor = Color.LightGray };
}
else
{
e.Row.Cells[i].FormatStyle = null;
}
}
}
}
To prevent the editing if the row is not checked :
private void grdEX1_EditingCell(object sender, EditingCellEventArgs e)
{
if(!Convert.ToBoolean(grdEX1.GetValue("checkboxCol"))) //not checked
{
e.Cancel = true;
return;
}
}