C# – How to disable particular check box cell in a DataGridView CheckBox column

cdatagridviewwinforms

I have a winForm with a DataGridView control. It contains 5 columns, one of them is a CheckBox column. I want to enable/disable checkbox cell of this column based on the value present in another column at the same row.

I can disable entire column using DisabledCheckBoxCell

But it makes entire column in disabled state.

Here is a snippet of DataGridView,

SourceColumn | DestinationColumn
true                  | enabled

true                  | enabled
false                 | disabled

Does anyone have idea, how this can be achieved in .Net.

Best Answer

Vijay,

DataGridViewCheckBoxColumn does not have property called disabled so by changing the style of the checkbox you can make it look like as if it is disabled. Look at the following code.

 private void dataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
    {
        if (e.RowIndex == 1)
        {
            DataGridViewCell cell=dataGridView1.Rows[e.RowIndex].Cells[0];
            DataGridViewCheckBoxCell chkCell = cell as DataGridViewCheckBoxCell;
            chkCell.Value = false;
            chkCell.FlatStyle = FlatStyle.Flat;
            chkCell.Style.ForeColor = Color.DarkGray;
            cell.ReadOnly = true;

        }

    }

Related Solutions

R – DataGridView column of type DataGridViewCheckBoxCell is constantly readonly/disabled

Well, after more than 4 hours of debugging, I have found that the DataGridView row height was too small for the checkbox to be painted, so it was not displayed at all. I have found this after an accidental row height resizing.

As a solution, you can set the AutoSizeRowsMode to AllCells.

richDataGrid.AutoSizeRowsMode = System.Windows.Forms.DataGridViewAutoSizeRowsMode.AllCells;

Winforms – Datagridview, disable button/row

Would you consider just turning the button cell into a regular empty text box disabled?

Dim cell As DataGridViewButtonCell = dgv.row(x).cell(y)
cell = New DataGridViewTextBoxCell()
cell.value = String.Empty
cell.ReadOnly = True

It loses its bordered "Button" appearance and blends in with the remainder of the cells (assuming you are using primarily the default DataGridViewTextBoxCells).

Here's the equivalent in C#, plus it grays out the field to make it look read-only:

var cell = dgv[column, row] = new DataGridViewTextBoxCell();
cell.Value = ""; // ignored if this column is databound
cell.ReadOnly = true;
cell.Style.BackColor = Color.FromKnownColor(KnownColor.Control);

Best Answer

Related Solutions

R – DataGridView column of type DataGridViewCheckBoxCell is constantly readonly/disabled

Winforms – Datagridview, disable button/row

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