文件名 [英] filename

问题描述

如何使用.NET 1.1检查字符串是否包含有效文件名

for winxp？


有问题的应用程序有一个文本框，用户可以在其中输入
filename和文件名。它不应该被允许输入路径

+ filename就像c：\ tmp \ myfile.log"或相对路径.. \tmp

\ myfile.log" - 不应该允许目录信息，只允许文件名。


任何建议。

Hi,

How can check using .NET 1.1 that a string contains a valid filename
for winxp?

The application in question has a textbox where user can enter
filename and only the filename. It should not allowed to enter path
+filename like "c:\tmp\myfile.log" or relative paths "..\tmp
\myfile.log" - no directory info should be allowed, only the filename.

Any suggestions.

推荐答案

if（ File.Exists（filePathFromTextBox））

{

//工作

}

其他

{

//显示错误

}


存在从早期开始就存在。我相信它是1.0。这肯定是1.1：
http://msdn.microsoft.com/en-us/libr...rs(VS.71).aspx


-

Gregory A. Beamer

MVP，MCP：+ I，SE，SD，DBA


订阅我的博客
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if(File.Exists(filePathFromTextBox))
{
//Do work
}
else
{
//Display error
}

Exists has been around since the early days. I believe it was 1.0. It was
definitely 1.1:
http://msdn.microsoft.com/en-us/libr...rs(VS.71).aspx

--
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MVP, MCP: +I, SE, SD, DBA

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如何使用.NET 1.1检查字符串是否包含有效文件名

for winxp？


有问题的应用程序有一个文本框，其中用户可以输入

文件名，只输入文件名。它不应该被允许输入路径

+ filename就像c：\ tmp \ myfile.log"或相对路径.. \tmp

\ myfile.log" - 不应该允许目录信息，只允许文件名。


任何建议。

Hi,

How can check using .NET 1.1 that a string contains a valid filename
for winxp?

The application in question has a textbox where user can enter
filename and only the filename. It should not allowed to enter path
+filename like "c:\tmp\myfile.log" or relative paths "..\tmp
\myfile.log" - no directory info should be allowed, only the filename.

Any suggestions.

你应该只需要检查字符串是否包含任何无效的文件名

字符由Path.GetInvalidFilenameChars返回。 />
http： //msdn.microsoft.com/en-us/libr...namechars.aspx


" RedLars"写道：

You should just need to check if the string contains any invalid filename
characters as returned by Path.GetInvalidFilenameChars.

http://msdn.microsoft.com/en-us/libr...namechars.aspx

"RedLars" wrote:

如何使用.NET 1.1检查字符串是否包含有效文件名

for winxp？


有问题的应用程序有一个文本框，用户可以输入

filename和文件名。它不应该被允许输入路径

+ filename就像c：\ tmp \ myfile.log"或相对路径.. \tmp

\ myfile.log" - 不应该允许目录信息，只允许文件名。


任何建议。

Hi,

How can check using .NET 1.1 that a string contains a valid filename
for winxp?

The application in question has a textbox where user can enter
filename and only the filename. It should not allowed to enter path
+filename like "c:\tmp\myfile.log" or relative paths "..\tmp
\myfile.log" - no directory info should be allowed, only the filename.

Any suggestions.

9月24日， 9:45 * am，RedLars< Liverpool1 ... @ gmail.comwrote：

On Sep 24, 9:45*am, RedLars <[e-mail]:

怎么样使用.NET 1.1检查字符串是否包含有效文件名

for winxp？


有问题的应用程序有一个文本框，用户可以在其中输入

filename，只有文件名。它不应该被允许输入路径

+ filename就像c：\ tmp \ myfile.log"或相对路径.. \tmp

\ myfile.log" - 不应该允许目录信息，只允许文件名。


任何建议。

Hi,

How can check using .NET 1.1 that a string contains a valid filename
for winxp?

The application in question has a textbox where user can enter
filename and only the filename. It should not allowed to enter path
+filename like "c:\tmp\myfile.log" or relative paths "..\tmp
\myfile.log" - no directory info should be allowed, only the filename.

Any suggestions.

只需检查你的字符串，确保没有出现\

..IndexOf（" \"）;

Just check your string to make sure there are no occurences of \
..IndexOf("\");

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