Hi Thanvir,
Thank you for your details.
Please refer this code snippets to enable and disable PushButton cells.
//Disable Push Button
this.gridControl1.ColStyles[2].CellType = "PushButton";
this.gridControl1.ColStyles[2].Description = "Push button";
this.gridControl1.ColStyles[2].TextColor = SystemColors.Control;
this.gridControl1.ColStyles[2].Enabled = false;
this.gridControl1.ColStyles[2].Clickable = false;
//Enable Push Button
this.gridControl1.ColStyles[3].CellType = "PushButton";
this.gridControl1.ColStyles[3].Description = "Push button";
this.gridControl1.ColStyles[3].Enabled = true;
Please refer the sample which implements the above said feature:
http://websamples.syncfusion.com/samples/Grid.Windows/F67389/main.htmKindly let us know if you need any further assistance.
Thank you for using Syncfusion Products.
Best Regards,
Jeba.