關于頁面提交后﹐控件綁定的問題﹐在線等﹗

Question

你的绑定过程放到 is notpostback 里面

Answer 1

if (!IsPostBack)
{
这里绑定。
}

Answer 2

if not ispostback
'Data bind..........
end if

Answer 3

控件參數:public dbProjects myproject;
if(!this.IsPostBack)時綁定調用綁定函數ProjectDataBind()
頁面有一個按鈕﹕事件響應函數Button2_ServerClick(object sender, System.EventArgs e)
并在該函數執行末尾再次綁定ProjectDataBind()
Button2_ServerClick該函數執行時修改資料庫﹔并更新其控件參數myproject﹔同時調用綁定函數ProjectDataBind()。
具體代碼如下﹕
using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using Pcc.Pyzs.Application.PMS.Components;namespace PMS.Main.Schedule
{
/// <summary>
/// ShowProjectInfo 的摘要描述。
/// </summary>
public class ShowProjectInfo : System.Web.UI.Page
{
protected System.Web.UI.HtmlControls.HtmlInputText Text5;
protected System.Web.UI.HtmlControls.HtmlInputText Proc_Name;
protected System.Web.UI.HtmlControls.HtmlInputHidden Proc_ID;
protected System.Web.UI.HtmlControls.HtmlInputHidden Proj_Kind_No;
protected System.Web.UI.HtmlControls.HtmlInputText Proj_Kind_Name;
protected System.Web.UI.HtmlControls.HtmlInputText Plan_Complete_Time;
protected System.Web.UI.HtmlControls.HtmlInputText Plan_Start_Time;
protected System.Web.UI.HtmlControls.HtmlInputHidden TransActor_User_ID;
protected System.Web.UI.HtmlControls.HtmlInputText TransActor_User_Name;
protected System.Web.UI.HtmlControls.HtmlInputButton Back;
protected System.Web.UI.HtmlControls.HtmlInputButton Enter;
protected System.Web.UI.HtmlControls.HtmlInputButton Btn_Proc;
public string Proj_ID;
public dbProjects.ProjectItem myprojectitem;
protected System.Web.UI.HtmlControls.HtmlGenericControl SPAN1;
protected System.Web.UI.HtmlControls.HtmlGenericControl SPAN2;
public dbProjects myproject;
private void Page_Load(object sender, System.EventArgs e)
{
if(!this.IsPostBack)
{
myprojectitem=new dbProjects.ProjectItem(Request.QueryString["proj_id"].ToString().Trim());
Proj_ID=Request.QueryString["proj_id"].ToString().Trim();
ProjectDataBind();
}
}
private void Button2_ServerClick(object sender, System.EventArgs e)
{
myprojectitem=new dbProjects.ProjectItem(Request.QueryString["proj_id"].ToString().Trim());
myprojectitem.DispatchProject(this.Plan_Start_Time.Value.Trim(),this.Plan_Complete_Time.Value.Trim(),this.TransActor_User_ID.Value);
ProjectDataBind();
} #region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
InitializeComponent();
base.OnInit(e);
}

/// <summary>
/// 此為設計工具支援所必需的方法 - 請勿使用程式碼編輯器修改
/// 這個方法的內容。
/// </summary>
private void InitializeComponent()
{    
this.Back.ServerClick += new System.EventHandler(this.Back_ServerClick);
this.Enter.ServerClick += new System.EventHandler(this.Button2_ServerClick);
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
private void ProjectDataBind()
{
this.Page.DataBind();
this.Proc_Name.Value=myprojectitem.Proc_Name;
this.Proc_ID.Value=myprojectitem.Proc_ID;
this.Proj_Kind_No.Value=myprojectitem.Proj_Kind;
this.Proj_Kind_Name.Value=myprojectitem.Proj_Kind_Name;
this.Plan_Start_Time.Value=myprojectitem.Plan_Start_Time;
this.Plan_Complete_Time.Value=myprojectitem.Plan_Complete_Time;
this.TransActor_User_ID.Value=myprojectitem.TransActor;
this.TransActor_User_Name.Value=myprojectitem.TransActor_NAME;
if(myprojectitem.Curr_State.Trim()==System.Configuration.ConfigurationSettings.AppSettings["UnResolutionValue_CurrState"].Trim())
{
this.Back.Value="";
this.Back.Disabled=true;
this.Enter.Value="分配項目";
}
if(myprojectitem.Curr_State.Trim()==System.Configuration.ConfigurationSettings.AppSettings["UnDispatchValue_CurrState"].Trim())
{
this.Back.Value="決議";
this.Enter.Value="分配項目";
}
if(myprojectitem.Curr_State.Trim()==System.Configuration.ConfigurationSettings.AppSettings["UnCompleteValue_CurrState"].Trim())
{
this.Back.Value="取消分配";
this.Enter.Value="確定更改";
}
if(myprojectitem.Curr_State.Trim()==System.Configuration.ConfigurationSettings.AppSettings["UnEndCaseValue_CurrState"].Trim())
{
this.Back.Value="";
this.Enter.Value="";
this.Back.Disabled=true;
this.Enter.Disabled=true;
}
} private void Back_ServerClick(object sender, System.EventArgs e)
{
myprojectitem=new dbProjects.ProjectItem(Request.QueryString["proj_id"].ToString().Trim());
this.myprojectitem.CancelDispatchProject();
this.Page_Load(sender,e);
}
}
}