How do I do delete in gridview?

Question

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There is no error but the row cant be deleted

What I have tried:

try
{

using (SqlConnection conn = new SqlConnection(strConnString))
{

con.Open();
string strq = ("Delete LoanRates where LoanTerm=@LoanTerm and LoanRate=@LoanRate and LoanType=@LoanType");
SqlCommand insert = new SqlCommand(strq, con);

insert.Parameters.AddWithValue("@LoanTerm", Convert.ToInt32(this.GridView1.Rows[e.RowIndex].Cells[2].Text.Trim()));
insert.Parameters.AddWithValue("@LoanRate", Convert.ToDouble(this.GridView1.Rows[e.RowIndex].Cells[3].Text.Trim()));
insert.Parameters.AddWithValue("@LoanType", this.GridView1.Rows[e.RowIndex].Cells[1].Text.Trim());

con.Close();
}

}
catch (Exception ex) {

lblMessage.Text = "Error: " + ex.Message;
}

Posted 28-Jul-16 3:45am

Member 12652110

Updated 28-Jul-16 3:47am

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Karthik_Mahalingam · Accepted Answer · 2016-07-28T03:47:00

Solution 1

add this line

C#

insert.Parameters.AddWithValue("@LoanType", this.GridView1.Rows[e.RowIndex].Cells[1].Text.Trim());
   insert.ExecuteNonQuery();

by the way, give meaningful names to the variables as

C#

SqlCommand cmdDelete = new SqlCommand(strq, con);

Posted 28-Jul-16 3:47am

Karthik_Mahalingam

Updated 28-Jul-16 3:52am

v4

Comments

Member 12652110 28-Jul-16 9:50am

It still does not work

Karthik_Mahalingam 28-Jul-16 9:55am

open sql studio and run the query and check where the row is availble for the condition you are passing
select * from LoanRates where LoanTerm=@LoanTerm and LoanRate=@LoanRate and LoanType=@LoanType

Member 12652110 28-Jul-16 9:52am

oops so sorry it actually works

Karthik_Mahalingam 28-Jul-16 9:55am

ok.