testajax.aspx.cs

如何使用Ajax达到自己所需功能:从而可以实现很多意想不到的功能.

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class TestAjax : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        AjaxPro.Utility.RegisterTypeForAjax(typeof(TestAjax));
        this.txt1.Attributes.Add("onchange", "aa();");
    }

    private decimal rowId
    {
        get
        {
            return (ViewState["_rowId"] == null) ? 0 : decimal.Parse(ViewState["_rowId"].ToString().Trim());
        }
        set
        {
            ViewState["_rowId"] = value;
        }
    }

    private decimal rowId2
    {
        get
        {
            return (System.Web.HttpContext.Current.Session["rowId2"] == null) ? 0 : decimal.Parse(System.Web.HttpContext.Current.Session["rowId2"].ToString().Trim());
        }
        set
        {
            System.Web.HttpContext.Current.Session["rowId2"] = value;
        }
    }

    //private decimal rowId3
    //{
    //    get
    //    {
    //        return (ViewState["_rowId3"] == null) ? 0 : decimal.Parse(ViewState["_rowId3"].ToString().Trim());
    //    }
    //    set
    //    {
    //        ViewState["_rowId3"] = value;
    //    }
    //}

    [AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.Read)]
    public void SetRowId(string RowID)
    {
        //if (RowID == "") rowId = 0;
        //else rowId = decimal.Parse(RowID.Trim());
        rowId = decimal.Parse(RowID.Trim());
        rowId2 = decimal.Parse(RowID.Trim());
        //rowId3 = rowId2;
    }
    protected void btn_Click(object sender, EventArgs e)
    {
        Response.Write(rowId + "|" + rowId2 + "|");
    }

    [AjaxPro.AjaxMethod(AjaxPro.HttpSessionStateRequirement.Read)]
    public string a(string RowID)
    {
        rowId = decimal.Parse(RowID.Trim());
        return rowId.ToString();
    }
}