File.SetLastWriteTimeUtc Method
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| SetLastWriteTimeUtc(SafeFileHandle, DateTime) |
Sets the date and time, in Coordinated Universal Time (UTC), that the specified file or directory was last written to. |
| SetLastWriteTimeUtc(String, DateTime) |
Sets the date and time, in Coordinated Universal Time (UTC), that the specified file was last written to. |
- Source:
- File.cs
- Source:
- File.cs
- Source:
- File.cs
Sets the date and time, in Coordinated Universal Time (UTC), that the specified file or directory was last written to.
public:
static void SetLastWriteTimeUtc(Microsoft::Win32::SafeHandles::SafeFileHandle ^ fileHandle, DateTime lastWriteTimeUtc);public static void SetLastWriteTimeUtc(Microsoft.Win32.SafeHandles.SafeFileHandle fileHandle, DateTime lastWriteTimeUtc);static member SetLastWriteTimeUtc : Microsoft.Win32.SafeHandles.SafeFileHandle * DateTime -> unitPublic Shared Sub SetLastWriteTimeUtc (fileHandle As SafeFileHandle, lastWriteTimeUtc As DateTime)Parameters
- fileHandle
- SafeFileHandle
A SafeFileHandle to the file or directory for which to set the last write date and time information.
- lastWriteTimeUtc
- DateTime
A DateTime containing the value to set for the last write date and time of fileHandle.
This value is expressed in UTC time.
Exceptions
fileHandle is null.
lastWriteTimeUtc specifies a value outside the range of dates, times, or both permitted for this operation.
The caller does not have the required permission.
An I/O error occurred while performing the operation.
Applies to
.NET 10 и други версии
| Продукт | Версии |
|---|---|
| .NET | 7, 8, 9, 10 |
- Source:
- File.cs
- Source:
- File.cs
- Source:
- File.cs
Sets the date and time, in Coordinated Universal Time (UTC), that the specified file was last written to.
public:
static void SetLastWriteTimeUtc(System::String ^ path, DateTime lastWriteTimeUtc);public static void SetLastWriteTimeUtc(string path, DateTime lastWriteTimeUtc);static member SetLastWriteTimeUtc : string * DateTime -> unitPublic Shared Sub SetLastWriteTimeUtc (path As String, lastWriteTimeUtc As DateTime)Parameters
- path
- String
The file for which to set the date and time information.
- lastWriteTimeUtc
- DateTime
A DateTime containing the value to set for the last write date and time of path. This value is expressed in UTC time.
Exceptions
.NET Framework and .NET Core versions older than 2.1: path is a zero-length string, contains only white space, or contains one or more invalid characters. You can query for invalid characters by using the GetInvalidPathChars() method.
path is null.
The specified path, file name, or both exceed the system-defined maximum length.
The specified path was not found.
The caller does not have the required permission.
path is in an invalid format.
lastWriteTimeUtc specifies a value outside the range of dates or times permitted for this operation.
Remarks
The path parameter is permitted to specify relative or absolute path information. Relative path information is interpreted as relative to the current working directory. To obtain the current working directory, see GetCurrentDirectory.
For a list of common I/O tasks, see Common I/O Tasks.
See also
Applies to
.NET 10 и други версии
| Продукт | Версии |
|---|---|
| .NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10 |
| .NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
| .NET Standard | 1.3, 1.4, 1.6, 2.0, 2.1 |
| UWP | 10.0 |
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