Enabling and disabling a cell in a Datagridview

Question

I am using a DataGridView control for displaying some data. I need to enable some data and disable some data dynamically based on some values in the grid.

Can anyone

Answer 1

To "disable" a cell, it must be read-only and grayed out somehow. This function enables/disables a DataGridViewCell:

    /// <summary>
    /// Toggles the "enabled" status of a cell in a DataGridView. There is no native
    /// support for disabling a cell, hence the need for this method. The disabled state
    /// means that the cell is read-only and grayed out.
    /// </summary>
    /// <param name="dc">Cell to enable/disable</param>
    /// <param name="enabled">Whether the cell is enabled or disabled</param>
    private void enableCell(DataGridViewCell dc, bool enabled) {
        //toggle read-only state
        dc.ReadOnly = !enabled;
        if (enabled)
        {
            //restore cell style to the default value
            dc.Style.BackColor = dc.OwningColumn.DefaultCellStyle.BackColor;
            dc.Style.ForeColor = dc.OwningColumn.DefaultCellStyle.ForeColor;
        }
        else { 
            //gray out the cell
            dc.Style.BackColor = Color.LightGray;
            dc.Style.ForeColor = Color.DarkGray;
        }
    }

Answer 2

Step 1:

type form load : -
For i = 0 to Datagridview.columns.count -1
   if i <> 1 then //restricted columns, 'i' is Your column index
    Datagridview.Columns(i).ReadOnly = True
   end if
Next

Step 2

type Cellbeginedit
Datagridview.BeginEdit(True)

Answer 3

You can set a particular row or cell to be read-only, so the user cannot change the value. Is that what you mean?

dataGridView1.Rows[0].ReadOnly = true;
dataGridView1.Rows[1].Cells[2].ReadOnly = true;