出现错误“不支持URI格式。”

Question

在这里，我试图生成excel文件并将此文件保存到我的本地应用程序文件夹中，但是我收到错误消息“不支持URI格式。”，任何人都可以告诉我为什么要这样做

File.WriteAllText(ClsCommon.ApplicationPath + "TR_Temp/" + "AssessmentSheet.xls", renderedGridView);

Answer 1

In the comments you mention that ClsCommon.ApplicationPath is "localhost:1682/TR-WEB-Corp" . That is, you are trying to write to a file with the path "localhost:1682/TR-WEB-CorpTR_Temp/AssessmentSheet.xls" .

This is not a path, but an URI. A path is something on a local or a network disk and should either start with a drive name ( C: , D: , etc) or a network share name ( \\\\network\\share ).

Also, your path seems to be missing a path separator (backslash) between ClsCommon.ApplicationPath and "TR_Temp/" . As mentioned by @Heslacher in the comments, it's a good idea to use System.IO.Path.Combine() to avoid these kind of bugs.

Answer 2

Using the methods

System.IO.Path.GetTempPath()
System.IO.Path.Combine()

you can get a valid filename like:

string fileName = System.IO.Path.Combine(System.IO.Path.GetTempPath(), "TR_Temp","AssessmentSheet.xls");
File.WriteAllText(fileName, renderedGridView);

to write the content of renderedGridView to a file. See: System.IO.Path.Combine() and System.IO.Path.GetTempPath()