检查我的价值传递方法是否正确？ [英] Check my value passing metod is correct or not?

问题描述

  public   partial   class 登录：System.Web.UI.Page 
 {
 
  public   static   Double  elong1，elat1; 
 
  public   static   Double  Elong1 
 {
  get  { return  Login.elong1; } 
  set  {Login.elong1 =  value ; } 
} 
 
  public   static   Double  Elat1 
 {
  get  { return  Login.elat1; } 
  set  {Login.elat1 =  value ; } 
} 
 
  public   void  Button1_Click（ object  sender，EventArgs e）
 {
 
  String  sLong1 = geocodeXmlDoc1.DocumentElement。 SelectSingleNode（ @  // geometry / location / lat，XmlMngr1）.InnerText; 
  String  sLat1 = geocodeXmlDoc1.DocumentElement.SelectSingleNode（ @  // geometry / location / lng，XmlMngr1）.InnerText; 
 
 
 
 elong1 = Convert.ToDouble（sLong1）; 
 elat1 = Convert.ToDouble（sLat1）; 
 
} 
  //  这是一个样本类 
  public   class  harversine 
 {
 
  String  loudlong1 = Convert.ToString（elong1）; 
  String  loudlat1 = Convert.ToString（elat1）; 
 
  //  假设我想在按钮点击事件中将Fanswer传递给文本框 
 字符串 Fanswer = loudlong1 +  ，  + loudlat1; 
 
} 

这一切都是样品我希望在我之前看看这是否正确写一个原始代码。



我是一名学生，我也是该领域的新手。所以有人请帮我纠正这个，如果我错了。

解决方案

在这种情况下尝试解析可能会有所帮助，

for例如：

 Double.TryParse（

谢谢

--RA

TryParse仅适用于.net框架工作4。

public partial class Login : System.Web.UI.Page
{
   
    public static Double elong1, elat1;

   public static Double Elong1
    {
        get { return Login.elong1; }
        set { Login.elong1 = value; }
    }

       public static Double Elat1
    {
        get { return Login.elat1; }
        set { Login.elat1 = value; }
    }

 public void Button1_Click(object sender, EventArgs e)
    {

String sLong1 = geocodeXmlDoc1.DocumentElement.SelectSingleNode(@"//geometry/location/lat", XmlMngr1).InnerText;
        String sLat1 = geocodeXmlDoc1.DocumentElement.SelectSingleNode(@"//geometry/location/lng", XmlMngr1).InnerText;



elong1 = Convert.ToDouble(sLong1);
elat1 = Convert.ToDouble(sLat1);

}
// this is a sample class
public class harversine
    {

     String loudlong1 = Convert.ToString(elong1);
     String loudlat1 = Convert.ToString(elat1);

       // let say i want pass Fanswer to Textbox in button click event
     String Fanswer = loudlong1 + ", " + loudlat1;

}

this all are samples and i want to see if this correct or not before i'm writing a original code.

i'm a student and i'm new to the field as well. so someone please kindly help me to correct this if i'm wrong.

解决方案

Try Parse may helps yor in this case,
for example:

Double.TryParse(

Thanks
--RA

TryParse will only work on .net frame work 4.

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