关于viewstate状态视图
using System;using System.Data;
using System.Configuration;
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 _Default : System.Web.UI.Page
{
//public static string name
//{
// get
// {
// return "姓名";
// }
//}
protected void Page_Load(object sender, EventArgs e)
{
TextBox tb = new TextBox();
panel1.Controls.Add(tb);
//tb.Text = "2";
//tb.Text = (string)ViewState["first"];
tb.BackColor = System.Drawing.Color.Red;
if (!this.IsPostBack)
{
tb.Text = "1";
ViewState["first"] = "rgbtdkjcel";
tb.BackColor = System.Drawing.Color.Blue;
}
Response.Write(ViewState["first"]);
button.Text = "bbb";
}
protected override void LoadViewState(object savedState)
{
button.Text = "aaa";
}
protected void button_Click(object sender, EventArgs e)
{
Response.Write((string)ViewState["first"]);
TextBox one=(TextBox)panel1.Controls[0];
one.Text = (string)ViewState["first"];
}
}
当在页面中点击button按钮后,viewstate["first"]的值变空呢??