


这篇文章主要介绍了C#中ToString数据类型格式大全 千分符,需要的朋友可以参考下
用DataFormatString格式化GridView
在 GridView里面显示数据,要显示的数据有好多位小数,就想让它只显示两位小数,在delphi里,直接用DisplayFormat就行了, 在.net中,查了半天msdn,发现使用DataFormatString是可以实现这个功能的,但是怎么设置就不起作用,最后发现,由于2.0出于安 全性的考虑,还要同时设置HtmlEncode = false,才能够使DataFormatString生效.
留个记号,下次用的时候,就不用浪费N多时间了.
还有还有,DataFormatString = "{0:F}",是默认格式,显示两位小数,如果需要显示的小数位数为其他值,DataFormatString = "{0:Fn}"即可.
DataFormatString="{0:格式字符串}"
在DataFormatString 中的 {0} 表示数据本身,而在冒号后面的格式字符串代表所们希望数据显示的格式;
数字、货币格式:
在指定的格式符号后可以指定小数所要显示的位数。例如原来的数据为「1.56」,若格式设定为 {0:N1},则输出为「1.5」。其常用的数值格式如下表所示:
格式字符串 输入 结果
"{0:C}" 12345.6789 $12,345.68 "{0:C}" -12345.6789 ($12,345.68) "{0:D}" 12345 12345 "{0:D8}" 12345 00012345 "{0:E}" 12345.6789 1234568E+004 "{0:E10}" 12345.6789 1.2345678900E+004 "{0:F}" 12345.6789 12345.68 "{0:F0}" 12345.6789 12346 "{0:G}" 12345.6789 12345.6789 "{0:G7}" 123456789 1.234568E8 "{0:N}" 12345.6789 12,345.68 "{0:N4}" 123456789 123,456,789.0000 "Total: {0:C}" 12345.6789 Total: $12345.68
常用的日期时间格式:
格式 说明 输出格式
d 精简日期格式 MM/dd/yyyy
D 详细日期格式 dddd, MMMM dd, yyyy
f 完整格式 (long date + short time) dddd, MMMM dd, yyyy HH:mm
F
完整日期时间格式
(long date + long time)
dddd, MMMM dd, yyyy HH:mm:ss
g 一般格式 (short date + short time) MM/dd/yyyy HH:mm
G 一般格式 (short date + long time) MM/dd/yyyy HH:mm:ss
m,M 月日格式 MMMM dd
s 适中日期时间格式 yyyy-MM-dd HH:mm:ss
t 精简时间格式 HH:mm
T 详细时间格式 HH:mm:ss
C
货币
2.5.ToString("C")
¥2.50
D
十进制数
25.ToString("D5")
00025
E
科学型
25000.ToString("E")
2.500000E+005
F
固定点
25.ToString("F2")
25.00
G
常规
2.5.ToString("G")
2.5
N
数字
2500000.ToString("N")
2,500,000.00
X
十六进制
255.ToString("X")
FF
formatCode 是可选的格式化代码字符串。(详细内容请搜索“格式化字符串”查看)
必须用“{”和“}”将格式与其他字符分开。如果恰好在格式中也要使用大括号,可以用连续的两个大括号表示一个大括号,即: “{{”或者“}}”。
常用格式举例:
(1) int i=12345;
this.textBox1.Text=i.ToString(); //结果 12345(this指当前对象,或叫当前类的实例) this.textBox2.Text=i.ToString("d8"); //结果 00012345
(2) int i=123;
double j=123.45; string s1=string.Format("the value is {0,7:d}",i); string s2=string.Format("the value is {0,7:f3}",j); this.textBox1.Text=s1 ; //结果 the value is 123 this.textBox2.Text=s2; //结果 the value is 123.450
(3)double i=12345.6789;
this.textBox1.Text=i.ToString("f2"); //结果 12345.68 this.textBox2.Text=i.ToString("f6"); //结果 12345.678900
(4)double i=12345.6789;
this.textBox1.Text=i.ToString("n"); //结果 12,345.68 this.textBox2.Text=i.ToString(“n4”); //结果 12,345.6789
(5)double i=0.126;
string s=string.Format("the value is {0:p}",i); this.textBox1.Text=i.ToString("p"); //结果 12.6% this.textBox2.Text=s; //结果 the value is 12.6%
(6) DateTime dt =new DateTime(2003,5,25);
this.textBox1.Text=dt.ToString("yy.M.d"); //结果 03.5.25 this.textBox2.Text=dt.ToString(“yyyy年M月”); //结果 2003年5月 Convert.ToDateTime("2005/12/22 22:22:22").ToString("yyyy/MM/dd HH:mm:ss")"2005/12/22 22:22:22"
(7) int i=123;
double j=123.45; string s=string.Format("i:{0,-7},j:{1,7}",i,j); //-7表示左对齐,占7位 this.textBox1.Text=s ; //结果i:123 ,j: 123.45
The above is the detailed content of Summary of ToString data type format in C# (thousand separator). For more information, please follow other related articles on the PHP Chinese website!

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