以小时为例.protected void Button1_Click(object sender, EventArgs e)
{
int t1 =Convert.ToInt32(TextBox1.Text);
if (t1 >-1)
{
if (t1 < 25)
{
Label1.Text = TextBox1.Text;
}
else
{
Response.Write("<script language=javascript>alert('请输入0到24的数!')</script>");
}
}
else
{
Response.Write("<script language=javascript>alert('请输入0到24的数!')</script>");
}
}
注意:这里没有判断输入小数及textbox获取焦点的问题,可在此基础上添加.
{
int t1 =Convert.ToInt32(TextBox1.Text);
if (t1 >-1)
{
if (t1 < 25)
{
Label1.Text = TextBox1.Text;
}
else
{
Response.Write("<script language=javascript>alert('请输入0到24的数!')</script>");
}
}
else
{
Response.Write("<script language=javascript>alert('请输入0到24的数!')</script>");
}
}
注意:这里没有判断输入小数及textbox获取焦点的问题,可在此基础上添加.
int t1 =Convert.ToInt32(TextBox1.Text);
if (t1 > -1)
{
if (t1 < 25)
{
Label1.Text = TextBox1.Text;
}
else
{
Response.Write(" <script language=javascript> alert('请输入0到24的数!') </script> ");
}
}
else
{
Response.Write(" <script language=javascript> alert('请输入0到24的数!') </script> ");
}
c/s的把Response.Write(" <script language=javascript> alert('请输入0到24的数!') </script> "); 换成MessageBox.Show("请输入0到24的数!");