Mono Class Library: System.Net.WebClient Overview | MembersSystem.Net.WebClient.DownloadFile Method |
Downloads data from the resource identified by the specified URI, and writes the data to the specified file . [Edit]
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Type Reason System.Security.Permissions.FileIOPermission [Edit] Requires permission to write to files. See System.Security.Permissions.FileIOPermissionAccess.Write.
Type Reason System.Net.WebException The absolute URI is not valid.
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filename is null or string.Empty or contains invalid characters, or the specified path to the file does not exist.
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An error occurred while downloading data.
[Edit]System.Security.SecurityException The caller does not have permission to write to local files. [Edit]
If the WebClient.BaseAddress property of the current instance is not string.Empty, address is combined with WebClient.BaseAddress to form the absolute URI of the requested data. If the WebClient.BaseAddress property of the current instance is string.Empty, address is required to be the absolute URI of the requested data. If the WebClient.QueryString property of the current instance is not string.Empty, it is appended to address.
This method downloads data from the absolute URI to local file, fileName . If fileName already exists, the existing file is overwritten.
[Edit]
Namespace: System.Net
Assembly: System (in System.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0