Here is my cleanup of the User class. Note that there is a world of a difference between the.Count and the.Capacity properties of a list.Look them up! Your CheckUsername and CheckPassword methods were broken in more than one way.
- To export the values to a csv file. Gets or sets a value that indicates whether to buffer the data read from the Internet resource for a WebClient. To a local file. The WebClient class uses the. The Credentials property contains the authentication credentials used. Public static void. WebClient client = new WebClient; client.
- 3 WebClient Table of Content Web Client is a web base client can use in any user's PC. It is designed for the easy use of live viewing, playback, and IVS report generation with multiple servers. Web Client provides centralized management for numerous devices, servers, users.
Aug 10, 2015. WebClient upload file with Credentials.upload-file-with-credentials Question 7 4:10:47 PM 12/6/2011 9:14:02 AM Discuss and ask questions about the C#.
-->Definition
Gets or sets the network credentials that are sent to the host and used to authenticate the request.
Property Value
- ICredentials
An ICredentials containing the authentication credentials for the request. The default is null.
Examples
The following code example uses the user's system credentials to authenticate a request.
Remarks
The Credentials property contains the authentication credentials used to access a resource on a host. In most client-side scenarios, you should use the DefaultCredentials, which are the credentials of the currently logged on user. To do this, set the UseDefaultCredentials property to true instead of setting this property.
If the WebClient class is being used in a middle tier application, such as an ASP.NET application, the DefaultCredentials belong to the account running the ASP page (the server-side credentials). Typically, you would set this property to the credentials of the client on whose behalf the request is made.
For security reasons, when automatically following redirects, store the credentials that you want to be included in the redirect in a CredentialCache and assign it to this property. This property will automatically be set to null upon redirection if it contains anything except a CredentialCache. Having this property value be automatically set to null under those conditions prevents credentials from being sent to any unintended destination.
Applies to
See also
-->Definition
C# Webclient Authentication
Uploads a local file to a resource with the specified URI.
Overloads
| UploadFile(String, String) | Uploads the specified local file to a resource with the specified URI. |
| UploadFile(Uri, String) | Uploads the specified local file to a resource with the specified URI. |
| UploadFile(String, String, String) | Uploads the specified local file to the specified resource, using the specified method. |
| UploadFile(Uri, String, String) | Uploads the specified local file to the specified resource, using the specified method. |
Uploads the specified local file to a resource with the specified URI.
Parameters
- address
- String
The URI of the resource to receive the file. For example, ftp://localhost/samplefile.txt.
- fileName
- String
The file to send to the resource. For example, 'samplefile.txt'.
Returns
- Byte[]
A Byte array containing the body of the response from the resource.
Exceptions
The address parameter is null.
-or-
The fileName parameter is null.
The URI formed by combining BaseAddress, and address is invalid.
-or-
fileName is null, is Empty, contains invalid characters, or does not exist.
-or-
An error occurred while uploading the file.
-or-
There was no response from the server hosting the resource.
-or-
The Content-type header begins with multipart.
Examples
The following code example uploads the specified file to the specified URI using UploadFile. Any response returned by the server is displayed on the console.
The following code example shows an ASP.NET page that can accept posted files and is suitable for use with the UploadFile method. The page must reside on a Web server. Its address provides the value for the address parameter of the UploadFile method.
Remarks
The UploadFile method sends a local file to a resource. This method uses the STOR command to upload an FTP resource. For an HTTP resource, the POST method is used.
This method blocks while uploading the file. To continue executing while waiting for the server's response, use one of the UploadFileAsync methods.
The POST method is defined by HTTP. If the underlying request does not use HTTP and POST is not understood by the server, the underlying protocol classes determine what occurs. Typically, a WebException is thrown with the Status property set to indicate the error.
If the BaseAddress property is not an empty string (') and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.
Note
This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in .NET Framework.
Uploads the specified local file to a resource with the specified URI.
Parameters
- address
- Uri
The URI of the resource to receive the file. For example, ftp://localhost/samplefile.txt.
- fileName
- String
The file to send to the resource. Wibu crack. For example, 'samplefile.txt'.
Returns
- Byte[]
A Byte array containing the body of the response from the resource.
Exceptions
The address parameter is null.
-or-
The fileName parameter is null.
The URI formed by combining BaseAddress, and address is invalid.
-or-
fileName is null, is Empty, contains invalid characters, or does not exist.
-or-
An error occurred while uploading the file.
-or-
There was no response from the server hosting the resource. Babylon 5 starfury thunderbolt.
-or-
The Content-type header begins with multipart.
Remarks
The UploadFile method sends a local file to a resource. This method uses the STOR command to upload an FTP resource. For an HTTP resource, the POST method is used.
This method blocks while uploading the file. To continue executing while waiting for the server's response, use one of the UploadFileAsync methods.
The POST method is defined by HTTP. If the underlying request does not use HTTP and POST is not understood by the server, the underlying protocol classes determine what occurs. Typically, a WebException is thrown with the Status property set to indicate the error.
If the BaseAddress property is not an empty string (') and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.
Note
This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in .NET Framework.
Uploads the specified local file to the specified resource, using the specified method.
Parameters
- address
- String
The URI of the resource to receive the file.
- method
- String
The method used to send the file to the resource. If null, the default is POST for http and STOR for ftp.
Webclient C# Post
Returns
- Byte[]
A Byte array containing the body of the response from the resource.
Exceptions
The address parameter is null.
-or-
The fileName parameter is null.
The URI formed by combining BaseAddress, and address is invalid.
-or-
fileName is null, is Empty, contains invalid characters, or does not exist.
-or-
An error occurred while uploading the file.
-or-
There was no response from the server hosting the resource.
-or-
The Content-type header begins with multipart.
Examples
The following code example uploads the specified file to the specified URI using UploadFile. Any response returned by the server is displayed on the console.
The following code example shows an ASP.NET page that can accept posted files and is suitable for use with the UploadFile method. The page must reside on a Web server. Its address provides the value for the address parameter of the UploadFile method.
Remarks
When address specifies an HTTP resource, the UploadFile method sends a local file to a resource using the HTTP method specified in the method parameter and returns any response from the server. This method blocks while uploading the file. To continue executing while waiting for the server's response, use one of the UploadFileAsync methods.
If the method parameter specifies a verb that is not understood by the server or the address resource, the underlying protocol classes determine what occurs. Typically, a WebException is thrown with the Status property set to indicate the error.
If the BaseAddress property is not an empty string (') and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.
Note
This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in .NET Framework.
Uploads the specified local file to the specified resource, using the specified method.
Parameters
- address
- Uri
The URI of the resource to receive the file.
- method
- String
The method used to send the file to the resource. If null, the default is POST for http and STOR for ftp.
Returns
- Byte[]
A Byte array containing the body of the response from the resource.
C 23 Webclient File Credentials Download
Exceptions
The address parameter is null.
-or-
The fileName parameter is null.
The URI formed by combining BaseAddress, and address is invalid.
-or-
fileName is null, is Empty, contains invalid characters, or does not exist.
-or-
An error occurred while uploading the file.
-or-
There was no response from the server hosting the resource.
-or-
The Content-type header begins with multipart.
Remarks
When address specifies an HTTP resource, the UploadFile method sends a local file to a resource using the HTTP method specified in the method parameter and returns any response from the server. This method blocks while uploading the file. To continue executing while waiting for the server's response, use one of the UploadFileAsync methods. Half life 2 vs half life 1.
If the method parameter specifies a verb that is not understood by the server or the address resource, the underlying protocol classes determine what occurs. Typically, a WebException is thrown with the Status property set to indicate the error.
If the BaseAddress property is not an empty string (') and address does not contain an absolute URI, address must be a relative URI that is combined with BaseAddress to form the absolute URI of the requested data. If the QueryString property is not an empty string, it is appended to address.
Note
This member outputs trace information when you enable network tracing in your application. For more information, see Network Tracing in .NET Framework.
Applies to
