stored procedure to delete entire table - asp.net

Question

I want to delete all the rows of a table on a button click.the stored procedure is as follows:
create proc spTest
as
begin
Delete from tblTest
end
The code-behind is as follows:
protected void Button3_Click(object sender, EventArgs e)
{
string CS = ConfigurationManager.ConnectionStrings["EasyRozMoney_ConnectionString"].ConnectionString;
using (SqlConnection con = new SqlConnection(CS))
{
SqlCommand cmd = new SqlCommand("spTest", con);
cmd.CommandType = System.Data.CommandType.StoredProcedure;
con.Open();
lblStatus.Text = "Tasks Deleted Successfully.";
}
}
but the table remains unaffected although the label shows all tasks deleted successfully. What is the problem? I know something is very silly that I am doing.
PS: I don't want to use Truncate.

Answer 1

You have created Command but did not execute it. You have to call ExecuteNonQuery in order to exeucte the Command
As a addition note, put the code in try-catch block so that your application does not terminated in case of exception
protected void Button3_Click(object sender, EventArgs e)
{
try
{
string CS = ConfigurationManager.ConnectionStrings["EasyRozMoney_ConnectionString"].ConnectionString;
using (SqlConnection con = new SqlConnection(CS))
{
SqlCommand cmd = new SqlCommand("spTest", con);
cmd.CommandType = System.Data.CommandType.StoredProcedure;
con.Open();
cmd.ExecuteNonQuery();
lblStatus.Text = "Tasks Deleted Successfully.";
}
}
catch(Exception ex)
{
lblStatus.Text = "Tasks could not be deleted, Error " + ex.Message;
}
}

Answer 2

You have to execute the query using ExecuteNonQuery command.
protected void Button3_Click(object sender, EventArgs e)
{
string CS = ConfigurationManager.ConnectionStrings["EasyRozMoney_ConnectionString"].ConnectionString;
using (SqlConnection con = new SqlConnection(CS))
{
SqlCommand cmd = new SqlCommand("spTest", con);
cmd.CommandType = System.Data.CommandType.StoredProcedure;
con.Open();
cmd.ExecuteNonQuery();
lblStatus.Text = "Tasks Deleted Successfully.";
}
}

Answer 3

You are never acutally executing your query.
Call it like this:
using (SqlConnection con = new SqlConnection(CS))
{
SqlCommand cmd = new SqlCommand("spTest", con);
cmd.CommandType = System.Data.CommandType.StoredProcedure;
con.Open();
/*new:*/
cmd.ExecuteNonQuery();
lblStatus.Text = "Tasks Deleted Successfully.";
}

Answer 4

You are forgoted to execute the command.
add this cmd.ExecuteNonQuery(); to Button3_Click event

Answer 5

protected void Button3_Click(object sender, EventArgs e)
{
string CS = ConfigurationManager.ConnectionStrings["EasyRozMoney_ConnectionString"].ConnectionString;
using (SqlConnection con = new SqlConnection(CS))
{
SqlCommand cmd = new SqlCommand("spTest", con);
cmd.CommandType = System.Data.CommandType.StoredProcedure;
con.Open();
if(cmd.ExecuteNonQuery()>0)
{
lblStatus.Text = "Tasks Deleted Successfully.";
}
else
{
lblStatus.Text = "Unable to Delete tasks";
}
}
}