Asp.net 字符(三)

using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Threading;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class strChange : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        //设置货币小数部分的数值
        showValue.InnerHtml = GetNumberFormat("134.12554", 3);

        //格式化数据为货币格式
        showValue.InnerHtml += "<br />" + GetFormatNumber("134.12554");

        //进制转换
        showValue.InnerHtml += "<br />十转二：";
        showValue.InnerHtml += Convert.ToString(10, 2);
        showValue.InnerHtml += "<br />十转八：";
        showValue.InnerHtml += Convert.ToString(10, 8);
        showValue.InnerHtml += "<br />十转十六：";
        showValue.InnerHtml += Convert.ToString(10, 16);
        showValue.InnerHtml += "<br />二转八：";
        showValue.InnerHtml += Convert.ToString(Convert.ToInt64("1010", 2), 8);
        showValue.InnerHtml += "<br />二转十：";
        showValue.InnerHtml += Convert.ToInt64("1010", 2).ToString();
        showValue.InnerHtml += "<br />二转十六：";
        showValue.InnerHtml += Convert.ToString(Convert.ToInt64("1010", 2), 16);
        showValue.InnerHtml += "<br />八转二：";
        showValue.InnerHtml += Convert.ToString(Convert.ToInt64("12", 8), 2);
        showValue.InnerHtml += "<br />八转十：";
        showValue.InnerHtml += Convert.ToInt64("12", 8).ToString();
        showValue.InnerHtml += "<br />八转十六：";
        showValue.InnerHtml += Convert.ToString(Convert.ToInt64("12", 8), 16);
        showValue.InnerHtml += "<br />十六转二：";
        showValue.InnerHtml += Convert.ToString(Convert.ToInt64("a", 16), 2);
        showValue.InnerHtml += "<br />十六转十：";
        showValue.InnerHtml += Convert.ToString(Convert.ToInt64("a", 16), 8);
        showValue.InnerHtml += Convert.ToUInt64("a", 16).ToString();

        //确定弹窗
        Button1.Attributes["OnClick"] = "return confirm(‘你确定么?‘)";
    }

    private string GetNumberFormat(string str,int deci)
    {
        double value;
        string returnVal = "";
        if (double.TryParse(str, out value))
        {
            NumberFormatInfo NFI = new CultureInfo("zh-CN", false).NumberFormat;
            NFI.CurrencyDecimalDigits = deci;
            returnVal = value.ToString("C", NFI);
        }
        else
        {
            returnVal = "数值不正确~！";
        }
        return returnVal;
    }

    private string GetFormatNumber(string str)
    {
        double value;
        string returnVal = "";
        if (double.TryParse(str, out value))
        {
            NumberFormatInfo NFI = new CultureInfo("zh-CN", false).NumberFormat;
            NFI.CurrencyGroupSeparator = ",";    //设置货币中对小数点左边的数字分组的字符串
            returnVal = value.ToString("C", NFI);
        }
        else
        {
            returnVal = "数值不正确~！";
        }
        return returnVal;
    }

    protected void Button1_Click(object sender, EventArgs e)
    {
        showValue.InnerHtml += "<br /> 您点击了确定！";
    }
}