sarvesh_3

cmd11.CommandText = "UPDATE customer2 SET cust_blnc = cust_blnc +'"+textBox3.Text+"' WHERE cust_name='"+textBox2.Text+"' and cust_village='"+textBox1.Text+"'";
this code not update the table with privious value

sarvesh_3

with sql server database

sarvesh_3

how to update the data with privious value in c#