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POTimeout expired. The timeout period elapsed prior to obtaining a connection from the pool.
 

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  1. POTimeout expired. The timeout period elapsed prior to obtaining a connection from the pool.
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    <p>I have below code in my <code>.cs</code> file. This is the sample of code. There are more conditions of <code>if..elseif...else if..</code> etc. To reduce code I attached only sample code with only 2 conditions if and else..</p> <p>When I run this module on IIS 7.0 there is error related to connection pooling timeout.. </p> <p>My question is how to exactly close connection depending on my code's sitution? </p> <pre><code>public class GenerateSubjectWiseReportDAL { string ConnectionString = ""; string query = ""; SqlCommand com; SqlConnection con; public GenerateSubjectWiseReportDAL() { ConnectionString = ConfigurationManager.ConnectionStrings["dbConnectionString"].ConnectionString; } try { // bexcel.Visible = true; con = new SqlConnection(ConnectionString); con.Open(); if (sessional.Equals("1")) { if (lbsubjecttype.Equals("L")) { query = "SELECT DISTINCT Attendence_Stu_MainL1.st_id, Attendence_Stu_MainL1.st_rollno, Attendence_Stu_MainL1.st_name, Attendence_Stu_MainL1.scode, Attendence_Stu_MainL1.attendence AS Expr6, " + " Attendence_Stu_MainL1.total AS Expr7 FROM Attendence_Stu_MainL1 WHERE ((Attendence_Stu_MainL1.sem_no=@semno AND Attendence_Stu_MainL1.scode=@scode) AND Attendence_Stu_MainL1.branch_name=@branchname) ORDER BY Attendence_Stu_MainL1.scode,Attendence_Stu_MainL1.st_rollno"; GridView1.Columns[4].Visible = false; GridView1.Columns[5].Visible = false; GridView1.Columns[8].Visible = false; GridView1.Columns[9].Visible = false; Binding(GridView1, lbsubjecttype); } else { query = "SELECT DISTINCT Attendence_Stu_Main.st_id, Attendence_Stu_Main.st_rollno, Attendence_Stu_Main.st_name, Attendence_Stu_Main.scode, Attendence_Stu_Main.attendence AS Expr4, " + " Attendence_Stu_Main.total AS Expr5, Attendence_Stu_MainL1.attendence AS Expr6, Attendence_Stu_MainL1.total AS Expr7 FROM Attendence_Stu_Main LEFT OUTER JOIN " + " Attendence_Stu_MainL1 ON Attendence_Stu_Main.st_id = Attendence_Stu_MainL1.st_id AND Attendence_Stu_Main.scode = Attendence_Stu_MainL1.scode WHERE ((Attendence_Stu_Main.sem_no=@semno AND Attendence_Stu_Main.scode=@scode) AND Attendence_Stu_Main.branch_name=@branchname) ORDER BY Attendence_Stu_Main.scode,Attendence_Stu_Main.st_rollno"; GridView1.Columns[8].Visible = false; GridView1.Columns[9].Visible = false; Binding(GridView1, lbsubjecttype); } } } } catch (SqlException ee) { lbmsg.Text = ee.Message; lbmsg.Visible = true; lbmsg.ForeColor = Color.Green; throw ee; } finally { con.Close(); } } public void Binding(GridView mygridview, string subjtype) { try { int n = 0; com = new SqlCommand(query, con); //Initialize your connection using sqlConnection object SqlDataAdapter da = new SqlDataAdapter(com); com.Parameters.AddWithValue("@semno",semno); com.Parameters.AddWithValue("@scode", code); com.Parameters.AddWithValue("@branchname", branch); //Since it's a SELECT statement, the result may be a collection of tables so collect the result in a dataset like this DataSet ds = new DataSet(); da.Fill(ds, "ss"); com.ExecuteNonQuery(); mygridview.DataSource = ds.Tables["ss"]; ; mygridview.DataBind(); foreach (GridViewRow g1 in mygridview.Rows) { try { id = mygridview.Rows[g1.RowIndex].Cells[0].Text; rollno = mygridview.Rows[g1.RowIndex].Cells[1].Text; name = mygridview.Rows[g1.RowIndex].Cells[2].Text; scode = mygridview.Rows[g1.RowIndex].Cells[3].Text; if (subjtype.Equals("L")) { string sql = "INSERT INTO Attendence_Subject_Wise(st_id,st_rollno,st_name,branch_name,sem_no,scode,sess_no,theory,ttotal,lab,ltotal,tutorial,tutotal)" + "VALUES (@Stid, @Strollno,@Stname,@BranchName,@SemNo,@Scode,@Sessno,@theory,@total1,@lab,@total2,@tut,@total3)"; con = new SqlConnection(ConnectionString); con.Open(); com = new SqlCommand(sql, con); com.Parameters.Add("@Stid", id); com.Parameters.Add("@Strollno", rollno); com.Parameters.Add("@Stname", name); com.Parameters.Add("@BranchName", branch); com.Parameters.Add("@SemNo", semno); com.Parameters.Add("@Scode", scode); com.Parameters.Add("@Sessno", sess); com.Parameters.Add("@theory", n); com.Parameters.Add("@total1", n); com.Parameters.Add("@lab", mygridview.Rows[g1.RowIndex].Cells[6].Text); com.Parameters.Add("@total2", mygridview.Rows[g1.RowIndex].Cells[7].Text); com.Parameters.Add("@tut", n); com.Parameters.Add("@total3", n); } else { string sql = "INSERT INTO Attendence_Subject_Wise(st_id,st_rollno,st_name,branch_name,sem_no,scode,sess_no,theory,ttotal,lab,ltotal,tutorial,tutotal)" + "VALUES (@Stid, @Strollno,@Stname,@BranchName,@SemNo,@Scode,@Sessno,@theory,@total1,@lab,@total2,@tut,@total3)"; con = new SqlConnection(ConnectionString); con.Open(); com = new SqlCommand(sql, con); com.Parameters.Add("@Stid", id); com.Parameters.Add("@Strollno", rollno); com.Parameters.Add("@Stname", name); com.Parameters.Add("@BranchName", branch); com.Parameters.Add("@SemNo", semno); com.Parameters.Add("@Scode", scode); com.Parameters.Add("@Sessno", sess); com.Parameters.Add("@theory", mygridview.Rows[g1.RowIndex].Cells[4].Text); com.Parameters.Add("@total1", mygridview.Rows[g1.RowIndex].Cells[5].Text); com.Parameters.Add("@lab", mygridview.Rows[g1.RowIndex].Cells[6].Text); com.Parameters.Add("@total2", mygridview.Rows[g1.RowIndex].Cells[7].Text); com.Parameters.Add("@tut", mygridview.Rows[g1.RowIndex].Cells[8].Text); com.Parameters.Add("@total3", mygridview.Rows[g1.RowIndex].Cells[9].Text); } com.ExecuteNonQuery(); con.Close(); } catch (SqlException ex) { lbmsg.Text = ex.Message; lbmsg.Visible = true; lbmsg.ForeColor = Color.Green; } } } catch (SqlException ex) { lbmsg.Text = ex.Message; lbmsg.Visible = true; lbmsg.ForeColor = Color.Green; } } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PTQuestion
    1. USuser2053138
    1. USuser2053138
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. VO
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      1. POTimeout expired. The timeout period elapsed prior to obtaining a connection from the pool.
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POTimeout expired. The timeout period elapsed prior to obtaining a connection from the pool.
      1. This table or related slice is empty.
      1. VTDownMod
    1. COPlease post the exact error you're receiving. You can of course strip server names and everything.
      singulars
      1. POTimeout expired. The timeout period elapsed prior to obtaining a connection from the pool.
      1. USMike Perrenoud
    2. CODo you want to catch SQL error or code error?
      singulars
      1. POTimeout expired. The timeout period elapsed prior to obtaining a connection from the pool.
      1. USAlex
    3. COMichael Perrenoud :-ERROR:-Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.
      singulars
      1. POTimeout expired. The timeout period elapsed prior to obtaining a connection from the pool.
      1. USuser2053138
 

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