Timer控件,通过txtbox赋值无效的问题.

Question

细节问题请看图,
如图所示,我是想通过txtbox1获取输入的链接,点击button1跳转到web,同时,通过txtbox2获取timer的自动刷新的时间.
但是,我直接在timer控件的属性里边设置,就可以,当然,不敢设置太少,不然因为没有输入url而程序异常.....这个还不会弄.
但是现在我这样写,我觉得好像没错,参照MSDN上的例子,貌似也是这样的,但是为什么我运行之后,输入了时间,页面不自动刷新呢?
谢谢.我是新手,有些问题可能有些可笑,但是难得想要认真学习一回...给我点帮助吧,像上图的system.uri都是自己找的,但是timer控件的问题木有找到.
谢谢.

Answer 1

顺便说下,因为贴图的原因,txtbox2控件被遮挡了,点击之后可以看大图-,-

Answer 2

断点调试，看txttime的值，我怀疑是空的

Answer 3

txtBox2的 Change事件中加个判断。
txB2_TextChanged()
{
   string str= _txtBox2.Text;
   if(!string.IsNullOrEmpty(str))
   {
      int interval = int.Parse(str);
      if(interval > 100)    //加个条件，不然程序输入1的时候直接卡死
      {
          this.timer1.Interval = interval;
          this.timer1.Start();
      }
   }
   else
   {
       this.timer1.Stop();
   }
}

Answer 4

没有问题啊
  if (string.IsNullOrEmpty(txttime))
            {
            }

Answer 5

我下断之后,txttime是可以收到值的...首先在txttime!=null的时候,下断,=true了,
再在timer1.Interval = Convert.ToInt32(txttime);下断,也传进来了值...
结果杯具的事,还是不刷新...
是不是我事件弄错了...是要timer的时间,但是我也加进去了试过了...还是不刷新...

Answer 6

Timer1.Click事件中Timer1_Click(sender,e)
{
   //Url转向函数
   //你的应该是Button1_Click(),控件的名称最好改下，时间长了都不知道是什么了
   button_Click(this.Button1,new EventArg());
}

Answer 7

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication10
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            string geturl = textBox1.Text;
            webBrowser1.Url=new System.Uri("http://"+geturl);
        }        private void textBox2_TextChanged(object sender, EventArgs e)
        {
            string txttime = textBox2.Text;
            if (txttime != null)
            {
                int sxtime = int.Parse(txttime);
                if (sxtime > 100)
                {
                    this.timer1.Enabled = true;
                    this.timer1.Interval =sxtime;
                    this.timer1.Start();
                }
            }
            else
            {
                this.timer1.Enabled = false;
                this.timer1.Stop();
            }
        }        
    }
}这是刚刚按照#3的朋友的代码改的,还没运行...
刚刚运行了,运行通过...但是貌似还是不会刷新-.-杯具...

Answer 8

private void timer1_Tick(object sender, EventArgs e)
{
   button1.PerformClick();
}

Answer 9

#8L的朋友,谢谢你,但是...timer没有chick事件吧....只有timer1_Tick这个-,-但是我也加进去了,貌似还是没反应...
这个代码中,按照#3的朋友的代码改过了,但是-.-还是不刷新..
我真笨...

Answer 10

测试
    private void timer1_Tick(object sender, EventArgs e)
        {
            Text = DateTime.Now.ToString();
        }        private void textBox1_TextChanged(object sender, EventArgs e)
        {
            if (string.IsNullOrEmpty(txttime))
            {
                return;
            }            int iTime = Convert.ToInt32(textBox1.Text);
            if (iTime > 0)
            {
                timer1.Enabled = true;
                timer1.Interval = iTime;
            }
            else
                timer1.Enabled = false;
        }

Answer 11

用了您的代码,还是不会刷新-,-
现在的全部代码如下using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication10
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }        private void button1_Click(object sender, EventArgs e)
        {
            string geturl = textBox1.Text;
            webBrowser1.Url=new System.Uri("http://"+geturl);
        }               private void timer1_Tick(object sender, EventArgs e)
        {            //button1.PerformClick();
            //string txttime = textBox2.Text;
            //if (txttime != null)
            //{
            //    int sxtime = int.Parse(txttime);
            //    if (sxtime > 10)
            //    {
            //        this.timer1.Enabled = true;
            //        this.timer1.Interval = sxtime;
            //        this.timer1.Start();
            //    }
            //}
            //else
            //{
            //    this.timer1.Enabled = false;
            //    this.timer1.Stop();
            //}            
            Text = DateTime.Now.ToString();
        }        private void textBox2_TextChanged(object sender, EventArgs e)
        {
            string txttime = textBox2.Text;
            if (string.IsNullOrEmpty(txttime))
            {
                return;
            }
            int iTime = Convert.ToInt32(textBox2.Text);
            if (iTime > 0)
            {
                timer1.Enabled = true;
                timer1.Interval = iTime;
            }
            else
            {
                timer1.Enabled = false;
            }
        }        
    }
}

Answer 12

-,-杯具..弄了一下午了....
我就是想,通过timer控件事件webbro控件按照设定好的时间不停的刷新的功能..........
结果还是没弄明白....

Answer 13

感谢诸位的帮助,通过一晚上的问人和股沟百毒,终于弄好了....全部代码奉上,同时散分...目前来看是可以运行的.....using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            Text = "启动时间" + DateTime.Now.ToString();
        }        private void button1_Click(object sender, EventArgs e)
        {
            string geturl = textBox1.Text.Trim().ToLower();
            if (geturl == null || geturl == "")
            {
                MessageBox.Show("总得给我个网址我才知道你要去哪吧...");                
            }
            else
            {
                this.webBrowser1.Url = new System.Uri("http://" + geturl);
            }
        }        private void timer1_Tick(object sender, EventArgs e)
        {
            Text ="上次刷新时间"+DateTime.Now.ToString();
            string geturl1 = textBox1.Text;
            this.webBrowser1.Url = new System.Uri("http://" + geturl1);
        }        private void textBox2_TextChanged(object sender, EventArgs e)
        {
            try
            {
                string txtime = textBox2.Text;
                if (txtime == null || txtime == "")
                {
                    button1.Enabled = false;
                    return;
                }
                else
                {
                    if (!string.IsNullOrEmpty(txtime))
                    {
                        int itime = Convert.ToInt32(txtime);
                        if (itime >= 1)
                        {
                            button1.Enabled = true;
                            timer1.Enabled = true;
                            timer1.Interval = itime * 60000;
                        }
                    }
                    else
                    {
                        timer1.Enabled = false;
                    }
                }
            }
            catch
            {
                MessageBox.Show("别用非数字来玩我啊...");
            }        }
    }
}