asp.net ajax框架取消异步发送，有些问题。

nmdigboy 2012-07-27 01:06:29

protected void Button1_Click1(object sender, EventArgs e)

    {

        System.Threading.Thread.Sleep(3000);

         string connstr=WebConfigurationManager.ConnectionStrings["mingcai_user_conn"].ConnectionString;

         SqlConnection conn = new SqlConnection(connstr);

         try

         {

             conn.Open();

             SqlCommand cmd = new SqlCommand("o_income", conn);

             cmd.CommandType = CommandType.StoredProcedure;

             cmd.Parameters.AddWithValue("@Tname", 0);

             cmd.Parameters.AddWithValue("@userId", "9a23d3d4-c541-4d5b-9faa-f9a8cb10d505");

             cmd.Parameters.AddWithValue("@inname", "哈哈");

             cmd.Parameters.AddWithValue("@tmoney", "1234567");

             cmd.Parameters.AddWithValue("@inwhere", "小金库");

             cmd.Parameters.AddWithValue("@tdate", "2012-7-8");

             cmd.Parameters.AddWithValue("@mood", "shuang");

             cmd.Parameters.AddWithValue("@remark", "ceshi");

             cmd.ExecuteNonQuery();

             GridView1.DataBind();

         }

         catch (Exception ex)

         {

             Label1.Text = ex.Message;

         }

    }



<asp:UpdatePanel ID="UpdatePanel1" runat="server">

  <ContentTemplate>

      <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>

      <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" 

          DataKeyNames="id" DataSourceID="SqlDataSource2">

          <Columns>

              <asp:BoundField DataField="id" HeaderText="id" InsertVisible="False" 

                  ReadOnly="True" SortExpression="id" />

              <asp:BoundField DataField="userid" HeaderText="userid" 

                  SortExpression="userid" />

              <asp:BoundField DataField="in_name" HeaderText="in_name" 

                  SortExpression="in_name" />

              <asp:BoundField DataField="tmoney" HeaderText="tmoney" 

                  SortExpression="tmoney" />

              <asp:BoundField DataField="inwhere" HeaderText="inwhere" 

                  SortExpression="inwhere" />

              <asp:BoundField DataField="tdate" HeaderText="tdate" SortExpression="tdate" />

              <asp:BoundField DataField="mood" HeaderText="mood" SortExpression="mood" />

              <asp:BoundField DataField="remark" HeaderText="remark" 

                  SortExpression="remark" />

              <asp:BoundField DataField="insert_time" HeaderText="insert_time" 

                  SortExpression="insert_time" />

          </Columns>

      </asp:GridView>



      <asp:SqlDataSource ID="SqlDataSource1" runat="server" 

          ConnectionString="Data Source=DEVELOP-SERVER\OCHENGSHI;Initial Catalog=mingcai_database1;User ID=mc_admin" 

          ProviderName="System.Data.SqlClient" SelectCommand="SELECT * FROM [income]">

      </asp:SqlDataSource>



  </ContentTemplate>

  <Triggers>

    <asp:AsyncPostBackTrigger ControlID="Button1" EventName="click" />

    <asp:AsyncPostBackTrigger ControlID="Button2" EventName="click" />

  </Triggers>

</asp:UpdatePanel>

<asp:Button ID="Button1" runat="server" Text="Button" 

    onclick="Button1_Click1" />

<asp:Button ID="Button2"

    runat="server" Text="取消" OnClientClick="abortTask()" />



<script type="text/javascript">

function abortTask()  {

    var obj = Sys.WebForms.PageRequestManager.getInstance();

    if (obj.get_isInAsyncPostBack())

        obj.abortPostBack();

    alert("终止!");

}

</script>