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PObutton Postback and SQL SqlDataReader problem!
 

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  1. PObutton Postback and SQL SqlDataReader problem!
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    <p>i am beginner with sql,</p> <p>I have comments Template with button in the end of it to add the new comment to the database ,so i use SQL INSERT code to add and it works fine. but after button postback , the the new comment does not shows in my label until i refresh the page manually! .</p> <p>this my code in c# code portion:</p> <pre><code> protected void Page_Load(object sender, EventArgs e) { ViewComments(); } private void ViewComments() { hookUp = new SqlConnection("Server=xxxx\\SQLEXPRESS;Database=WebExcerciseDB;" + "Integrated Security=True"); SqlCmd = new SqlCommand("SELECT PersonName,PersonMail,Comment FROM CommentsTable", hookUp); try { hookUp.Open(); reader = SqlCmd.ExecuteReader(); while (reader.Read()) { SQL_Result.Text += reader["PersonName"] + " " + reader["PersonMail"] + " " + reader["Comment"] + "&lt;br/&gt;"; } } catch (Exception) { MessageBox.Show("Error in database code\n"); } finally { reader.Close(); hookUp.Close(); } } protected void AddCommentBtn_Click(object sender, EventArgs e) { // SQL First INSRET Way // //string InsertSQLString = "INSERT INTO CommentsTable(PersonName,PersonMail,Comment,PostDate) VALUES ('" + // PersonName.Text + "','"+ PersonMail.Text + "','" + PersonComment.Value + "','" + // DateTime.Now + "')"; //hookUp = // new SqlConnection("Server=xxxx-PC\\SQLEXPRESS;Database=WebExcerciseDB;" + "Integrated Security=True"); //SqlCmd = new SqlCommand(InsertSQLString, hookUp); //hookUp.Open(); //SqlCmd.ExecuteNonQuery(); //hookUp.Close(); // SQL First INSRET Way End // // SQL second INSRET Way // string InsertSQLString = "INSERT INTO CommentsTable(PersonName,PersonMail,Comment,PostDate)VALUES(@Name,@Mail,@Comment,@Date)"; hookUp = new SqlConnection("Server=xxxx-PC\\SQLEXPRESS;Database=WebExcerciseDB;" + "Integrated Security=True"); SqlCmd = new SqlCommand(InsertSQLString, hookUp); SqlCmd.Parameters.Add("@Name", PersonName.Text); SqlCmd.Parameters.Add("@Mail", PersonMail.Text); SqlCmd.Parameters.Add("@Comment", PersonComment.Value); SqlCmd.Parameters.Add("@Date", DateTime.Now); hookUp.Open(); SqlCmd.ExecuteNonQuery(); hookUp.Close(); // SQL second INSRET Way End // } } </code></pre> <p>} </p> <p>thanks any way..</p>
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