set specified column to readonly

[luo kun]

Now I use loop implement set specified column to readonly like follow:
for(int i = 1; i <= grid.Model.RowCount; i++)
{
grid.Model[i, 4].ReadOnly = true;
}
Is there an easier way?

And, although has been set to readonly, click the cell, cell can get focus, how to make the cell cant't be focused when readonly?

[luo kun]

In addition, it looks like the same code doesn't work right on Grid Tree Control.

[Ganesan K]

Hi luokun,

Thanks for using Syncfusion products.

You can use VisibleColumns collection for set the entire column as ReadOnly in GridDataControl

[C#]
this.gridControl.VisibleColumns[colIndex].IsReadOnly = true;

[XAML]


You can listen the Grid_CurrentCellActivating event as below to avoid the ReadOnly cell get focused.

void Grid_CurrentCellActivating(object sender, GridCurrentCellActivatingEventArgs e)
{
if (e.CellRowColumnIndex.ColumnIndex == 2)
{
e.Cancel = true;
}
}

Please download the workaround sample from the below locaion and check it out.
http://www.syncfusion.com/uploads/redirect.aspx?file=GridDataControlSample_c611563c.zip&team=development

You can use Columns collection in GridTreeControl for set the entire column as ReadOnly.

treeGrid.Columns[2].StyleInfo.ReadOnly = true;

Let me know if you need any more details.

Thanks
Ganesan

[luo kun]

The code can only be used GridDataControl,Grid Control is no similar way?
And GridTreeControl hasn't Grid_CurrentCellActivating event also.

[Clay Burch]

In the GridTreeControl, if you do not want a column to ever have a current cell (meaning that it cannot be clicked or tabbed into), you can set the the style.Enabled property to false. (This way, the column would not receive focus.)

treeGrid.Columns[2].StyleInfo.Enabled = false;

To subscribe to currentcell events in the GridTreeControl, use its InternalGrid property (which exposes a GridControl derived class). You should subscribe to such events in the GridTreeControl ModelLoaded event. For example,

 treeGrid.ModelLoaded += (s, e) =>
                {
                    treeGrid.InternalGrid.CurrentCellActivating += new GridCurrentCellActivatingEventHandler(InternalGrid_CurrentCellActivating);
                };

There are no column properties in a GridControl. To set properties on a column in a GridControl, you would need to handle the QueryCellInfo event, and if e.Cell.ColumnIndex points to a particular column, you would then set the properties you want for that column on the e.Style object (like e.Style.ReadOnly = true, or like e.Style.Enabled = false).

For a GridDataControl, the only column properties are those directly exposed in the VisibleColumn (like ReadOnly mentioned in a previous post in this thread). If you want to directly set other style properties you can use gridDataControl.Model.QueryCellInfo as described in the previous paragraph for GridControl.