How to enable row value editable in datagridview of win app?

I set the data source programmatically to datagridview of the windows application.

I set the "Enable editing" to true & readonly property is also set to false.

so is there any thing I'm missing?

Thanks开发者_运维百科..

Here are the four conditions:

1. The underlying data source supports editing.
2. The DataGridView control is enabled.
3. The EditMode property value is not EditProgrammatically.
4. The ReadOnly properties of the cell, row, column, and control are all set to false.

if the Readonly properties of the cell, row , column are all set to false but the editting mode is not enable yet, then check the ImeMode properties and set it to "ON".