Question

i have this code

 DataTable dt = new DataTable("MyDataTable");
dt.Columns.Add("Value1");
dt.Columns.Add("Value2");
dt.Columns.Add("Value3");
dt.Rows.Add(TextBox1.Text, TextBox2.Text, TextBox3.Text);
GridView1.DataSource = dt;
GridView1.DataBind();

When i try inserting data to a gridview using this code the new values replace with the old values. how can i develop this to add new records without replacing.

Answer 1

You’re rebinding your gridview. This will wipe the existing data. If you want to update your grid view I’d suggest adding the new row to a persistent data store and refreshing from that. This could be a database table or data structure.