无法将类型“string”隐式转换为“int”。拜求！！！！谢谢！！！
我用C#做个很简单的倒计时，在textBox1中输入数据m，然后利用timer1控件，就m--倒计时啊。运行报错：无法将类型“string”隐式转换为“int”。所有代码都在下面了。大哥大姐教教我吧。谢谢。

int m;

private void textBox1_TextChanged(object sender, EventArgs e)
{
if(this.textBox1.Text != "")
{
m = this.textBox1.Text;
}
}

private void timer1_Tick(object sender, EventArgs e)
{

m--;
this.label2.Text = m.ToString()+"秒";
label2.Refresh();
}

private void button1_Click(object sender, EventArgs e)
{
this .timer1.Enabled =true;
}

[解决办法]
int.Parse
[解决办法]
m = int.Parse(this.textBox1.Text);
[解决办法]

C# code

private void textBox1_TextChanged(object sender, EventArgs e)  {  if(this.textBox1.Text != "")  {  [b]m = Convert.ToInt32(this.textBox1.Text);[/b]  }  }private void timer1_Tick(object sender, EventArgs e)  {      m--;  this.label2.Text = m.ToString()+"秒";  label2.Refresh();  } private void button1_Click(object sender, EventArgs e)  {  this .timer1.Enabled =true;  }