所以最后......我让我的转发器工作，因为我希望它充满按钮、单选按钮、图像按钮、更新面板、AJAX 模式弹出窗口和每个事件背后的繁重代码。
发现当项目超过 20 时，我的转发器变得非常慢，所以我使用分页作为解决方案。问题是当我进行更改并转到下一页时，返回上一页时所有更改都消失了。（检查收音机、标签等都恢复正常状态）。
请帮忙，我的系统现在正在生产中。
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
loadTasks();
}
void loadTasks()
{
string evalidxxx = Request.QueryString["eval_id"].Trim().Replace(" ", "");
SqlConnection conn = new System.Data.SqlClient.SqlConnection(ConfigurationManager.ConnectionStrings["GappConnectionString2"].ConnectionString);
try
{
conn.Open();
SqlDataAdapter sqlAdapter = new SqlDataAdapter("SELECT Prog_Task_link.pt_seq, Tasks.task_name, Tasks.task_id FROM Tasks INNER JOIN Prog_Task_link ON Tasks.task_id = Prog_Task_link.task_id INNER JOIN Programs ON Prog_Task_link.prog_id = programs.prog_id INNER JOIN Data_Tracker_prepare ON Programs.prog_id = Data_Tracker_prepare.dtpre_prog_id WHERE Data_Tracker_prepare.eval_id =" + evalidxxx, conn);
System.Data.DataTable dt = new System.Data.DataTable();
sqlAdapter.Fill(dt);
PagedDataSource objPds = new PagedDataSource();
objPds.DataSource = dt.DefaultView;
objPds.AllowPaging = true;
objPds.PageSize = 10;
objPds.CurrentPageIndex = CurrentPage;
lblCurrentPage.Text = "Page: " + (CurrentPage + 1).ToString() + " of "
+ objPds.PageCount.ToString();
//Disable Prev or Next buttons if necessary
LinkPrevPage.Enabled = !objPds.IsFirstPage;
LinkNextPage.Enabled = !objPds.IsLastPage;
rptr1.DataSource = objPds;
rptr1.DataBind();
}
catch (SqlException ex)
{
Response.Write(ex.Message);
}
finally { conn.Close(); }
}
public int CurrentPage
{
get
{
// look for current page in ViewState
object o = this.ViewState["_CurrentPage"];
if (o == null)
return 0; // default to showing the first page
else
return (int)o;
}
set
{
this.ViewState["_CurrentPage"] = value;
}
}
protected void LinkPrevPage_Click(object sender, EventArgs e)
{
CurrentPage -= 1;
loadTasks();
}
protected void LinkNextPage_Click(object sender, EventArgs e)
{
CurrentPage += 1;
loadTasks();
}