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POUse Same variable name in scope
 

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  1. POUse Same variable name in scope
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    <p>I need to use the same variable name to declare the connection string. But when i do this, i will have further error. I declared "SqlConnection sqlCon = new SqlConnection(strCon);" for the first variable, can i use it again? According to my teacher, i should use the same variable.</p> <pre><code>string strCon = Database.GetConStr(); SqlConnection sqlCon = new SqlConnection(strCon); try { string strSql = "SELECT Name, ID FROM student WHERE Status = 'A' ORDER BY Name"; SqlCommand sqlCmd = new SqlCommand(strSql, sqlCon); sqlCon.Open(); SqlDataReader reader = sqlCmd.ExecuteReader(); while (reader.Read()) { ddlStaff.Items.Add(new ListItem(reader["Name"].ToString(), reader["ID"].ToString())); } reader.Close(); } catch (Exception ex) { Session["Error"] = "Error in getting ... System Msg: " + ex.Message; Server.Transfer("Error.aspx"); } finally { if (sqlCon.State == ConnectionState.Open) sqlCon.Close(); } string strCon2 = Database.GetConStr(); sqlCon = new SqlConnection(strCon2); try { string strSql2 = "SELECT Desc1, Desc2 FROM Parameter WHERE Paracode1 = 'Test' AND Status = 'A' ORDER BY Desc1"; SqlCommand sqlCmd2 = new SqlCommand(strSql2, sqlCon); sqlCon.Open(); SqlDataReader reader2 = sqlCmd2.ExecuteReader(); while (reader2.Read()) { ddlModule.Items.Add(new ListItem(reader2["Desc1"].ToString(), reader2["Desc22"].ToString())); } reader2.Close(); } catch (Exception ex) { Session["Error"] = "Error in getting ... System Msg: " + ex.Message; Server.Transfer("Error.aspx"); } finally { if (sqlCon.State == ConnectionState.Open) sqlCon.Close(); } </code></pre> <p>Is it because i cannot use the same variable?</p>
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