这既不会产生错误，也不会输出。帮我解决这个问题。这是我的代码：
public partial class ScoHelpDesk : System.Web.UI.Page
{
SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["LocalSqlServer"].ConnectionString);
SqlDataAdapter adapt;
DataTable dt;
SqlConnection con2, con3;
SqlCommand cmd, cmd1, cmd2;
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
BindData_Sheet();
}
}
protected void InsertData1(object sender, EventArgs e)
{
try
{
foreach (GridViewRow gvRow in GridView1.Rows)
{
con = new SqlConnection(ConfigurationManager.ConnectionStrings["LocalSqlserver"].ConnectionString);
TextBox t1 = (TextBox)GridView1.FooterRow.FindControl("TextBox2");
TextBox t2 = (TextBox)GridView1.FooterRow.FindControl("TextBox4");
TextBox t3 = (TextBox)GridView1.FooterRow.FindControl("TextBox6");
TextBox t4 = (TextBox)GridView1.FooterRow.FindControl("TextBox8");
TextBox t5 = (TextBox)GridView1.FooterRow.FindControl("TextBox10");
TextBox t6 = (TextBox)GridView1.FooterRow.FindControl("TextBox12");
cmd = new SqlCommand("insert into tblHelpDesk (Name,Purpose,ContactNo,AlternativeNo,Email,Address) values(@Name,@Purpose,@ContactNo,@AlternativeNo,@Email,@Address)", con);
con.Open();
cmd.Parameters.AddWithValue("@Name", t1.Text);
cmd.Parameters.AddWithValue("@Purpose", t2.Text);
cmd.Parameters.AddWithValue("@ContactNo", t3.Text);
cmd.Parameters.AddWithValue("@AlternativeNo", t4.Text);
cmd.Parameters.AddWithValue("@Email", t5.Text);
cmd.Parameters.AddWithValue("@Address", t6.Text);
cmd.ExecuteNonQuery();
Page.Response.Redirect(Page.Request.Url.ToString(), true);
}
}
catch (Exception ex)
{ }
}
private void BindData_Sheet()
{
DataTable dt = new DataTable();
using (SqlConnection con2 = new SqlConnection(con.ConnectionString))
{
string strQuery = "SELECT * FROM tblHelpDesk ";
SqlCommand cmd = new SqlCommand(strQuery, con);
using (SqlDataAdapter sda = new SqlDataAdapter())
{
cmd.Connection = con;
sda.SelectCommand = cmd;
sda.Fill(dt);
GridView1.DataSource = dt;
GridView1.DataBind();
}
}
}
}