我正在使用aspx网站，我正在使用计时器事件。 我只想在我点击一个特定按钮时运行计时器。现在计时器正在页面加载上运行。在Winforms中我们使用timer.Tick（）事件来完成它。但它不支持网站。 任何人都可以帮我解决这个问题。 在此先感谢....
我的代码在这里......
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Configuration;
using System.ComponentModel;
public partial class Expert : System.Web.UI.Page
{
public static BackgroundWorker worker = new BackgroundWorker();
protected void Page_Load(object sender, EventArgs e)
{
int id;
id = Int32.Parse(Request.QueryString["id"]);
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["LPSConnection"].ConnectionString.ToString());
con.Open();
SqlDataReader rd;
rd = new SqlCommand("Select * from ExpertChat where id=" + id, con).ExecuteReader();
rd.Read();
Image1.ImageUrl = rd["image1"].ToString();
Label8.Text = rd["image1"].ToString();
//Image3.ImageUrl = rd["image1"].ToString();
Label1.Text = rd["SName"].ToString();
Label2.Text = rd["Skills"].ToString();
Label5.Text = rd["rate"].ToString();
Label3.Text = rd["ReviewCount"].ToString();
Label4.Text = rd["Title"].ToString();
Label6.Text = rd["ReviewCount"].ToString();
Label7.Text = rd["Title"].ToString();
Label9.Text = rd["Qualification"].ToString();
Label10.Text = rd["MyServices"].ToString();
Label11.Text = rd["other"].ToString();
Label14.Text = rd["IsLoggedIn"].ToString();
int x = Int32.Parse(rd["IsLoggedIn"].ToString());
if (x == 1)
{
Image2.ImageUrl = "~/online.png";
}
else
{
Image2.ImageUrl = "~/offline.png";
}
rd.Close();
if (Session["User"] == "User")
{
SqlDataReader rd1 = new SqlCommand("Select funds from signup where email='" + Session["email"].ToString() + "'", con).ExecuteReader();
rd1.Read();
Label13.Text = rd1["funds"].ToString();
}
worker.DoWork += new DoWorkEventHandler(DoWork);
worker.WorkerReportsProgress = true;
worker.WorkerSupportsCancellation = true;
con.Close();
}
protected void Button2_Click(object sender, EventArgs e)
{
}
protected void SendButton_Click(object sender, EventArgs e)
{
string messageMask = "{0} @ {1} : {2}";
string message = string.Format(messageMask, "yash", DateTime.Now.ToShortTimeString(), NewMessageTextBox.Text);
TextBox1.Text = TextBox1.Text + Environment.NewLine + message;
// Calling the DoWork Method Asynchronously
ScriptManager.RegisterStartupScript(this.Page, this.Page.GetType(), "myScript", "document.getElementById('" + NewMessageTextBox.ClientID + "').value = '';", true);
ScriptManager.RegisterStartupScript(this, this.GetType(), "TextBox1slide", "buttonClicked();", true);
if (worker.IsBusy != true)
{
worker.RunWorkerAsync(new string[] { message, Label3.Text });
}
}
private static void DoWork(object sender, DoWorkEventArgs e)
{
string[] args = e.Argument as string[];
string value = args[0];
string id = args[1];
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["LPSConnection"].ConnectionString.ToString());
con.Open();
SqlCommand cmd;
cmd = new SqlCommand("Update Chat set Data=@message,Updated1=1 where id=" + Int32.Parse(id), con);
cmd.Parameters.AddWithValue("@message", value);
cmd.ExecuteNonQuery();
con.Close();
}
protected void ChatTextTimer_Tick(object sender, EventArgs e)
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["LPSConnection"].ConnectionString.ToString());
con.Open();
//if (second1.Visible)
//{
// SqlDataReader rd7 = new SqlCommand("Select IsApproved from Chat where id=" + Int32.Parse(Label2.Text) + "'", con).ExecuteReader();
// rd7.Read();
// string str3 = rd7["IsApproved"].ToString();
// rd7.Close();
// if (str3 == "Approved")
// {
// second1.Visible = false;
// }
// else if (str3 == "Canceled")
// {
// second1.Visible = false;
// second3.Visible = true;
// }
//}
//else
//{
int x1 = 0;
SqlDataReader rd;
rd = new SqlCommand("Select UserInitial,Updated from Chat where id =" + Int32.Parse(Label3.Text), con).ExecuteReader();
rd.Read();
string str;
int i;
i = Int32.Parse(rd["Updated"].ToString());
if (i == 1)
{
str = rd["UserInitial"].ToString();
rd.Close();
x1 = x1 + 1;
TextBox1.Text = TextBox1.Text + Environment.NewLine + str;
SqlCommand
cmd = new SqlCommand("Update Chat set Updated=0 where id=" + Int32.Parse(Label3.Text), con);
cmd.ExecuteNonQuery();
}
else
{
rd.Close();
}
con.Close();
ScriptManager.RegisterStartupScript(this, this.GetType(), "TextBox1slide", "buttonClicked();", true);
}
protected void TextBox1_TextChanged(object sender, EventArgs e)
{
}
protected void ImageButton1_Click(object sender, ImageClickEventArgs e)
{
if (Session["User"] != "User")
{
Response.Redirect("signin.aspx");
}
else
{
if (Int32.Parse(Label13.Text) < 20)
{
Response.Redirect("Payment.aspx");
}
else
{
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["LPSConnection"].ConnectionString.ToString());
con.Open();
SqlDataReader rd = new SqlCommand("Select Booked,email from ExpertChat where id=" + Request.QueryString["id"].ToString(), con).ExecuteReader();
rd.Read();
int x = Int32.Parse(rd["Booked"].ToString());
string str = rd["email"].ToString();
rd.Close();
if (x == 0)
{
//second1.Visible = true;
SqlDataReader mRead1, mRead3, mRead4;
mRead1 = new SqlCommand("insert into chat (ExpertName,UserName,rate,Data,Date,UserInitial) Values ('" + str + "','" + Session["SName"] + "','" + Label5.Text + "','Hello','" + DateTime.Now.ToShortDateString() + "','yash')", con).ExecuteReader();
mRead1.Close();
mRead3 = new SqlCommand("Update ExpertChat Set Booked=1 where SName='" + Label1.Text + "'", con).ExecuteReader();
mRead3.Close();
mRead4 = new SqlCommand("Select top 1 id from Chat where ExpertName='" + str + "' Order by id desc", con).ExecuteReader();
mRead4.Read();
int y = Int32.Parse(mRead4["id"].ToString());
mRead4.Close();
ScriptManager.RegisterStartupScript(this, this.GetType(), "TextBox1slide", "button1Clicked();", true);
ChatTextTimer.Enabled = true;
second3.Visible = false;
second1.Visible = false;
second2.Visible = false;
int id;
id = y;
Label3.Text = id.ToString();
SqlDataReader rd1 = new SqlCommand("Select ExpertName from Chat where id=" + y, con).ExecuteReader();
rd1.Read();
string str23 = rd1["ExpertName"].ToString();
rd1.Close();
SqlDataReader rd3;
rd3 = new SqlCommand("Select * from ExpertChat where email='" + str23 + "'", con).ExecuteReader();
rd3.Read();
string str2;
str2 = rd3["email"].ToString();
Label1.Text = rd3["rate"].ToString();
Image3.ImageUrl = rd3["image1"].ToString();
Label12.Text = rd3["rate"].ToString();
rd3.Close();
con.Close();
}
else
{
ScriptManager.RegisterStartupScript(this, this.GetType(), "TextBox1slide", "buttonClicked();", true);
//second2.Visible = true;
}
}
}
}
}
我想在ImageButton1_Click事件被解雇时运行它....
答案 0 :(得分：1)
如果您正在使用Visual Studio 2010（如果我的版本错误，请更正我）您应该可以访问Intellisense。您可以使用它来查看所有可用的方法。
Timer.Start()
http://msdn.microsoft.com/en-us/library/system.timers.timer.start(v=vs.110).aspx