if you look at the code below i get this error Object reference not set to an instance of an object.
i get the error when this statment runs
result = (int)cmd.ExecuteScalar();
however as you can see i did use the new operator
public void RunSQL(ref string sqlstring, ref string err){
string errlocal = "No DataBase Errors"; int result;err = errlocal;
string Connectionstring; try{
Connectionstring = GetAccessstring();
using (OleDbConnection OLECONN = new OleDbConnection(Connectionstring)){
OleDbCommand cmd = new OleDbCommand(sqlstring, OLECONN);
OLECONN.Open();
result = (
int)cmd.ExecuteScalar();OLECONN.Close();
}
}
catch (OleDbException ex){
err = ex.ToString();
Cisco
}
null error
mbelew
this is mine
private void button1_Click(object sender, EventArgs e)
{
string Number_t = textBox1.Text;int result;
sqlConnection1.Open(); //Open My Connection
SqlCommand cmd_Num = new SqlCommand("Select number From Numbers where num=@Number_t", sqlConnection1);
cmd_Num.Parameters.Add("@Number_t", SqlDbType.Int);
cmd_Num.Parameters["@Number_t"].Value = Number_t;
result = (int)cmd_Num.ExecuteScalar();
sqlConnection1.Close();
}
Hope this Helps
EdgarGustavoPerezGonzalez
aze