{"id":60,"date":"2008-02-11T03:27:59","date_gmt":"2008-02-11T03:27:59","guid":{"rendered":""},"modified":"2008-02-11T03:27:59","modified_gmt":"2008-02-11T03:27:59","slug":"60","status":"publish","type":"post","link":"https:\/\/www.poloo.org\/?p=60","title":{"rendered":"C#\u9a8c\u8bc1\u8f93\u5165\u7684\u662f\u5426\u6570\u5b57\u7684\u51e0\u79cd\u65b9\u6cd5"},"content":{"rendered":"

  \u65b9\u6cd5\u4e00:

static bool IsNumeric(string str)
  {
   if (str==null || str.Length==0)
    return false;
   foreach(char c in str)
   {
    if (!Char.IsNumber(c))
    {
     return false;
    }
   }
   return true;
  }
<\/code>
    \u65b9\u6cd5\u4e8c:

private bool IsNumeric(string s)
private bool IsNumeric(string s)
         {
              char ch0 = '0';
              char ch9 = '9';
              for(int i=0; i < s.Length; i++)
              {
                  if ((s[i] < ch0 || s[i] > ch9))
                   {
                         this.lblwarning.Text=\"\u6b64\u5904\u5e94\u8f93\u5165\u6574\u6570\u4e14\u975e\u8d1f\uff01\";
                        return false;
                   }
              }
              return true;
         }
<\/code>
    \u65b9\u6cd5\u4e09:

static bool IsNumeric (string str)
{  
   System.Text.RegularExpressions.Regex reg1  
       = new System.Text.RegularExpressions.Regex(@\"^[-]?d+[.]?d*$\");  
   return reg1.IsMatch(str);
}
<\/code>
    \u65b9\u6cd5\u56db\uff1a\uff08\u53ef\u6269\u5c55\uff09

public static bool IsConvert(string Expression,Type DataType)
{
  switch(DataType.Name)
  {
       case \"Double\":
              try
              {
                     Double.Parse(Expression);
                     return true;
              }
              catch
              {
                     return false;
              }
       case \"DateTime\":
              try
              {
                     DateTime.Parse(Expression);
                     return true;
              }
              catch
              {
                     return false;
              }
       default:
              return true;
  }
}
<\/code>
    C#\u9a8c\u8bc1\u8f93\u5165\u7684\u662f\u5426\u6570\u5b57\u7684\u65b9\u6cd5<\/p>\n

\u5176\u5b9e\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u4e5f\u53ef\u4ee5
static bool IsNumeric(string str)
  {
   if (str==null || str.Length==0)
    return false;
   foreach(char c in str)
   {
    if (!Char.IsNumber(c))
    {
     return false;
    }
   }
   return true;
  }
<\/code>
\u6b63\u5219\u8868\u8fbe\u7684\u5199\u6cd5\u662f\uff1a <\/p>\n


static bool IsNumeric(string str)  
{  
   System.Text.RegularExpressions.Regex reg1  
       = new System.Text.RegularExpressions.Regex(@\"^[-]?d+[.]?d*$\");  
   return reg1.IsMatch(str);  
}
<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"

  \u65b9\u6cd5\u4e00:static bool IsNume...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":["post-60","post","type-post","status-publish","format-standard","hentry","category-NET"],"_links":{"self":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts\/60","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=60"}],"version-history":[{"count":0,"href":"https:\/\/www.poloo.org\/index.php?rest_route=\/wp\/v2\/posts\/60\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=60"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=60"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.poloo.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=60"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}