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在我的gridview插入數據。如果重複的項目，它會顯示錯誤消息，「項目重複」。但現在我需要顯示「項目重複」的消息和另一個消息，「你需要插入這些數據」。如果用戶按是，那麼該數據需要插入。我的當前代碼只顯示重複的項目，並且不允許該數據輸入。這裏是我的代碼如何在if語句中添加確認
protected void AddNewCustomer(object sender, EventArgs e)
{
Control control = null;
if (GridView1.FooterRow != null)
{
control = GridView1.FooterRow;
}
else
{
control = GridView1.Controls[0].Controls[0];
}
string SlNo = (control.FindControl("txtSlNo") as TextBox).Text;
string Code = (control.FindControl("txtcode") as TextBox).Text;
string details = (control.FindControl("txtdetails") as TextBox).Text;
string Qty = (control.FindControl("txtqty") as TextBox).Text;
using (SqlConnection con = new SqlConnection("Data Source=xxxxx;Initial Catalog=xxxxx;User ID=xxxxx;Password=xxxxxx"))
{
using (SqlCommand cmd = new SqlCommand())
{
DataTable dt = new DataTable();
SqlDataAdapter da1;
da1 = new SqlDataAdapter("select code from Qtattemp where code='" + Code + "' ", con);
da1.Fill(dt);
if (dt.Rows.Count > 0)
{
ScriptManager.RegisterClientScriptBlock(this, this.GetType(),
"alertMessage",
"alert('Item Repeated');", true);
}
else
{
cmd.Connection = con;
cmd.CommandType = CommandType.Text;
cmd.CommandText = "INSERT INTO [Qtattemp] VALUES(@Code,@details,@Qty,@SlNo)";
cmd.Parameters.AddWithValue("@SlNo", SlNo);
cmd.Parameters.AddWithValue("@Code", Code);
cmd.Parameters.AddWithValue("@details", details);
cmd.Parameters.AddWithValue("@Qty", Qty);
con.Open();
cmd.ExecuteNonQuery();
GridView1.DataBind();
BindData();
con.Close();
}
}
}
}