blocks|key|4483355|text|您可以在ToString调用中使用string+format+codes。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|4483356|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/0c899ak8.aspx^0|H|J|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

You can use <a href="http://msdn.microsoft.com/en-us/library/0c899ak8.aspx" rel="noreferrer">string format codes</a> in your ToString call.

blocks|key|3637854|text|试试这个：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3637855|yourValueHere.ToString("0.00")|code-block|syntax|javascript|3637856|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

Try this:

<pre><code>yourValueHere.ToString("0.00")
</code></pre>

blocks|key|4483402|text|我会使用像这样的东西|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4483403|string+value+=+ReturnValue.ToString("0.00");|code-block|syntax|javascript|4483404|它使用接受格式字符串的ToString重载。上面的格式字符串"0.00“指定了两个小数位。|4483405|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|L|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|M|8|@]|9|@]|A|$]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

I'd use something like 

<pre><code>string value = ReturnValue.ToString("0.00");
</code></pre>

This uses the ToString overload that accepts a format string.
The above format string "0.00" specifies two decimal places.

blocks|key|1071603|text|是否要使用货币字符格式化字符串？|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1071604|如果是的话..。|1071605|decimal+m+=+3.4;

string+s+=+string.Format("{0:c}",+m);

//+s+will+be+£3.40,+$3.40,+etc+depending+on+your+locale+settings|code-block|syntax|javascript|1071606|entityMap^0|0|0|0^^$0|@$1|2|3|4|5|6|7|K|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|L|8|@]|9|@]|A|$]]|$1|D|3|E|5|F|7|M|8|@]|9|@]|A|$G|H]]|$1|I|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|J|$]]

Do you want your string formatted using a currency character?

If so...

<pre><code>decimal m = 3.4;

string s = string.Format("{0:c}", m);

// s will be £3.40, $3.40, etc depending on your locale settings
</code></pre>

blocks|key|1071635|text|在SQLServer中，货币数据类型相当于一个精度为4位小数的小数。我假设当小数转换为字符串时，精度是守恒的。最好的选择是在进行转换时始终使用格式字符串，例如"#，##0.00“。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1071636|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

In SQLServer a money data type is the equivalent of a decimal with 4 decimal places of precision. I would assume this is precision is conserved when the decimal is converted to a string. The best option would be to always use a format string eg "#,##0.00" when doing the conversion.

blocks|key|4483547|text|Money数据类型的精度为4位小数。您需要在ToString()参数中指定格式，或者在转换为字符串之前对值进行四舍五入。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|4483548|据我所知，如果你使用.ToString()，你不会得到任何舍入。我想你只是把数字弄丢了。|4483549|如果你四舍五入，你不只是砍掉了数字。以下是四舍五入的示例(未经测试的代码)：|4483550|string+value+=+Math.Round(ReturnValue,+2).ToString();|code-block|syntax|javascript|4483551|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|N|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|O|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|P|8|@]|9|@]|A|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

The Money data type has a precision of 4 decimal places. You'll need to either specify the format in the ToString() arguments or you can round off the value before converting to a string.

If you use .ToString() you're not getting any rounding as far as I know. I think you just lose the digits.

If you round, you're not just chopping off digits. Here's a sample for rounding (untested code):

<pre><code>string value = Math.Round(ReturnValue, 2).ToString();
</code></pre>

blocks|key|418968|text|MartGriff，|type|unstyled|depth|inlineStyleRanges|entityRanges|data|418969|我最好的建议是使用SqlMoney类型将其转换为双精度型。在那里，你可以随心所欲地输出它！|418970|下面是一个例子：|418971|System.Data.SqlTypes.SqlMoney+ReturnValue;

//Set+your+returnValue+with+your+SQL+statement
ReturnValue+=+ExecuteMySqlStatement();

//Get+the+format+you+want

//$30.00
string+currencyFormat+=+ReturnValue.ToDouble().ToString("c");

//30.00
string+otherFormat+=+ReturnValue.ToDouble().ToString("0.00");|code-block|syntax|javascript|418972|有关更多格式选项，请查看MSDN：|418973|http://msdn.microsoft.com/en-us/library/system.double.tostring.aspx|offset|length|418974|祝你好运，我希望这对你有帮助。|418975|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|0|0|0|1V|0|0|0^^$0|@$1|2|3|4|5|6|7|Z|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|10|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|11|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|12|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|13|8|@]|9|@]|A|$]]|$1|M|3|N|5|6|7|14|8|@]|9|@$O|15|P|16|1|17]]|A|$]]|$1|Q|3|R|5|6|7|18|8|@]|9|@]|A|$]]|$1|S|3|-4|5|6|7|19|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|N]]]]

MartGriff,

My best advice would be to convert it to a double using the SqlMoney type. From there, you can output it however you would like!

Here's an example:

<pre><code>System.Data.SqlTypes.SqlMoney ReturnValue;

//Set your returnValue with your SQL statement
ReturnValue = ExecuteMySqlStatement();

//Get the format you want

//$30.00
string currencyFormat = ReturnValue.ToDouble().ToString("c");

//30.00
string otherFormat = ReturnValue.ToDouble().ToString("0.00");
</code></pre>

For more formatting options, check out the MSDN:

<a href="http://msdn.microsoft.com/en-us/library/system.double.tostring.aspx" rel="noreferrer">http://msdn.microsoft.com/en-us/library/system.double.tostring.aspx</a>

Best of luck, I hope this helps.

blocks|key|1076773|text|我目前正在开发一个船坞网络系统，使用VS+2013社区版。我正在尝试解决如何将货币值输出到文本框中。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1076774|我使用的方法是|1076775|fieldName.Text+=+decimalValue.ToString("c")；|1076776|它工作得很完美。|1076777|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|J|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|K|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|L|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|M|8|@]|9|@]|A|$]]|$1|H|3|-4|5|6|7|N|8|@]|9|@]|A|$]]]|I|$]]

I am currently developing a boatdock web system, using VS 2013 Community edition. I was trying to work out how to output a currency value into a textbox.

The method that I used was 

fieldName.Text = decimalValue.ToString("c");

It works perfectly.

blocks|key|419018|text|我的建议是首先将其转换为Decimal。我会使用类似这样的东西：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|419019|string+value+=+(Convert.ToDecimal(ReturnValue)).ToString("0,0.00");|code-block|syntax|javascript|419020|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

My recommendation is to convert it to Decimal firstly. I'd use something like this:

<pre><code>string value = (Convert.ToDecimal(ReturnValue)).ToString("0,0.00");
</code></pre>

blocks|key|419045|text|string+value+=+(Convert.ToDecimal(ReturnValue)).ToString("c");|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|419046|C代表货币p代表百分比。你可以使用a+list+of+other+letters。|unstyled|offset|length|419047|entityMap|0|LINK|mutability|MUTABLE|url|https://docs.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings^0|0|H|N|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|R|8|@]|9|@$G|S|H|T|1|U]]|A|$]]|$1|I|3|-4|5|F|7|V|8|@]|9|@]|A|$]]]|J|$K|$5|L|M|N|A|$O|P]]]]

<pre><code>string value = (Convert.ToDecimal(ReturnValue)).ToString("c");
</code></pre>

c is for currency
p for percentage.
There is <a href="https://docs.microsoft.com/en-us/dotnet/standard/base-types/standard-numeric-format-strings" rel="nofollow noreferrer">a list of other letters</a> you can use.

I am querying a database field that returns a money value, I am assigning this to a string but it is adding extra 00 on the end.

e.g. Query returns <code>30.00</code>

I assign this to a string (<code>string value = Convert.ToString(ReturnValue);</code>)
but when I output it, it is showing as <code>30.0000</code>

Can you advise me where I'm going wrong and the best way to approach this?

C# Currency to string

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在查询一个返回货币值的数据库字段，我将其赋值给一个字符串，但它在末尾添加了额外的00。例如，查询返回30.00我将它赋给一个字符串(string value = Convert.ToString(ReturnValue);)，但是当我输出它时，它显示为30.0000你能告诉我我哪里错了吗?最好的解决方法是什么？

问字符串的C#货币
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