Update gridview checked checkboxes into database.

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Hello every one

I have Gridview with check box. when check box is checked, if I click submit button only checked checkboxes should be updated to 1 into my database . by default my checkbox is 0. Currect is updating everything including unchecked checkboxes

Any help or suggestion is welcome.

Regards

What I have tried:

C#

protected void Button8_Click(object sender, EventArgs e)
        {
           SqlConnection con = new SqlConnection();
            con.ConnectionString = WebConfigurationManager.ConnectionStrings["MyDB"].ConnectionString;
            con.Open();
                      


            for (int innercounter = 0; innercounter < GridView1.Rows.Count; innercounter++)
 {
CheckBox chkSelect;
chkSelect = (CheckBox)GridView1.Rows[innercounter].Cells[0].FindControl("RadioButton3");
if (chkSelect.Checked == true)
  {
 
   // RadioButton Field1 = (RadioButton )GridView1.Rows[innercounter].Cells[0].FindControl("RadioButton3");
      SqlCommand cmd = new SqlCommand("UPDATE MCALLERS SET BusinessCallYN ='1' Where CallID=@CallID", con);
                         cmd.ExecuteNonQuery();
    
  }

}
            con.Close();

Posted 18-Mar-16 3:15am

Member 12390137

Updated 18-Mar-16 3:31am

Michael_Davies

v2

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Michael_Davies · Answer 1 · 2016-03-18T03:25:00

Solution 1

C#

Your command string contains a parameter:

SqlCommand cmd = new SqlCommand("UPDATE MCALLERS SET BusinessCallYN ='1' Where CallID=@CallID", con);

You never assign a value to the parameter.

Posted 18-Mar-16 3:25am

Michael_Davies

Member 12390137 · Answer 2 · 2016-03-18T03:31:00

Hi guys thanks I managed to get the solution .

Thanks to Micheal_Davies for response

Below is my solution and is working perfect for me

C#

SqlConnection con = new SqlConnection();
           con.ConnectionString = WebConfigurationManager.ConnectionStrings["NKAccess"].ConnectionString;
           con.Open();

           foreach (GridViewRow Grow in GridView1.Rows)
           {
               RadioButton chselect = (RadioButton)Grow.FindControl("RadioButton3");
               Label lblId = (Label)Grow.FindControl("lblID");


               if (chselect.Checked)
               {


                   string query = "UPDATE MCALLERS SET BusinessCallYN ='1' Where CallID='" + lblId.Text + "'";
                SqlCommand    cmd = new SqlCommand(query, con);
                   cmd.ExecuteNonQuery();
               }
           }

           con.Close();