在.NET 判断输入框中字符串的值为数值型

  public bool IsNumberic(string oText)
    {
        try
        {
            int var1 = Convert.ToInt32(oText);
            return true;
        }
        catch
        {
            return false;
        }
    }
    protected void Page_Load(object sender, EventArgs e)
    {
 
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        string a = TextBox1.Text;
        if (IsNumberic(a) == true)
        {
            Response.Write("输入为数值");
        }
        else
        {
            Response.Write("输入不为数值");
        }
    }

转载于:https://www.cnblogs.com/yeye518/archive/2008/05/09/2231755.html