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Monday, November 5, 2012

HTTP Status Codes


HTTP_STATUS_CONTINUE
100
The request can be continued.

HTTP_STATUS_SWITCH_PROTOCOLS



101
The server has switched protocols in an upgrade header.

HTTP_STATUS_OK



200
The request completed successfully.

HTTP_STATUS_CREATED



201
The request has been fulfilled and resulted in the creation of a new resource.

HTTP_STATUS_ACCEPTED



202
The request has been accepted for processing, but the processing has not been completed.

HTTP_STATUS_PARTIAL



203
The returned meta information in the entity-header is not the definitive set available from the origin server.

HTTP_STATUS_NO_CONTENT



204
The server has fulfilled the request, but there is no new information to send back.

HTTP_STATUS_RESET_CONTENT



205
The request has been completed, and the client program should reset the document view that caused the request to be sent to allow the user to easily initiate another input action.

HTTP_STATUS_PARTIAL_CONTENT



206
The server has fulfilled the partial GET request for the resource.

HTTP_STATUS_AMBIGUOUS



300
The server couldn't decide what to return.

HTTP_STATUS_MOVED



301
The requested resource has been assigned to a new permanent URI (Uniform Resource Identifier), and any future references to this resource should be done using one of the returned URIs.

HTTP_STATUS_REDIRECT



302
The requested resource resides temporarily under a different URI (Uniform Resource Identifier).

HTTP_STATUS_REDIRECT_METHOD



303
The response to the request can be found under a different URI (Uniform Resource Identifier) and should be retrieved using a GET HTTP verb on that resource.

HTTP_STATUS_NOT_MODIFIED



304
The requested resource has not been modified.

HTTP_STATUS_USE_PROXY



305
The requested resource must be accessed through the proxy given by the location field.

HTTP_STATUS_REDIRECT_KEEP_VERB



307
The redirected request keeps the same HTTP verb. HTTP/1.1 behavior.

HTTP_STATUS_BAD_REQUEST



400
The request could not be processed by the server due to invalid syntax.

HTTP_STATUS_DENIED



401
The requested resource requires user authentication.

HTTP_STATUS_PAYMENT_REQ



402
Not currently implemented in the HTTP protocol.

HTTP_STATUS_FORBIDDEN



403
The server understood the request, but is refusing to fulfill it.

HTTP_STATUS_NOT_FOUND



404
The server has not found anything matching the requested URI (Uniform Resource Identifier).

HTTP_STATUS_BAD_METHOD



405
The HTTP verb used is not allowed.

HTTP_STATUS_NONE_ACCEPTABLE



406
No responses acceptable to the client were found.

HTTP_STATUS_PROXY_AUTH_REQ



407
Proxy authentication required.

HTTP_STATUS_REQUEST_TIMEOUT



408
The server timed out waiting for the request.

HTTP_STATUS_CONFLICT



409
The request could not be completed due to a conflict with the current state of the resource. The user should resubmit with more information.

HTTP_STATUS_GONE



410
The requested resource is no longer available at the server, and no forwarding address is known.

HTTP_STATUS_LENGTH_REQUIRED



411
The server refuses to accept the request without a defined content length.

HTTP_STATUS_PRECOND_FAILED



412
The precondition given in one or more of the request header fields evaluated to false when it was tested on the server.

HTTP_STATUS_REQUEST_TOO_LARGE



413
The server is refusing to process a request because the request entity is larger than the server is willing or able to process.

HTTP_STATUS_URI_TOO_LONG



414
The server is refusing to service the request because the request URI (Uniform Resource Identifier) is longer than the server is willing to interpret.

HTTP_STATUS_UNSUPPORTED_MEDIA



415
The server is refusing to service the request because the entity of the request is in a format not supported by the requested resource for the requested method.

HTTP_STATUS_RETRY_WITH



449
The request should be retried after doing the appropriate action.

HTTP_STATUS_SERVER_ERROR



500
The server encountered an unexpected condition that prevented it from fulfilling the request.

HTTP_STATUS_NOT_SUPPORTED



501
The server does not support the functionality required to fulfill the request.

HTTP_STATUS_BAD_GATEWAY



502
The server, while acting as a gateway or proxy, received an invalid response from the upstream server it accessed in attempting to fulfill the request.

HTTP_STATUS_SERVICE_UNAVAIL



503
The service is temporarily overloaded.

HTTP_STATUS_GATEWAY_TIMEOUT








504
The request was timed out waiting for a gateway.

HTTP_STATUS_VERSION_NOT_SUP



505
The server does not support, or refuses to support, the HTTP protocol version that was used in the request message.





Thursday, November 1, 2012

Session Timeout asp.net web.config

ASP.NET > Session > Timeout

The Timeout property specifies the time-out period assigned to the Session object for the application, in minutes. If the user does not refresh or request a page within the time-out period, the session ends.
The default is 10 minutes.
Should not be lower than 4 minutes an higher than 20 minutes.

<sessionstate timeout="30">





Disable Back Button Interrnet Browser Asp .net

ASP.NETDisable Back Button IE

HttpCacheability.NoCache
Sets the Cache-Control: no-cache header

SetNoStore
Sets the Cache-Control: no-store HTTP header.

Example:

Response.Cache.SetCacheability(HttpCacheability.NoCache);
Response.Cache.SetNoStore();






NEWID SQL Server

SQL Server > Built-In Functions > NEWID

Creates a unique value of type uniqueidentifier.

Example

DECLARE @myid uniqueidentifier
SET @myid = NEWID()

update
 user
set
 app_token = @myid
where
 id = 1






SET ANSI_NULLS SQL Server

Specifies ISO compliant behavior of the Equals (=) and Not Equal To (<>) comparison operators when they are used with null values.

SET ANSI_NULLS { ON | OFF }

When SET ANSI_NULLS is ON, a SELECT statement that uses WHERE column_name = NULL returns zero rows even if there are null values in column_name.

When SET ANSI_NULLS is OFF, the Equals (=) comparison operators do not follow the ISO standard. A SELECT statement that uses WHERE column_name = NULL returns the rows that have null values in column_name.





Wednesday, October 24, 2012

How to add HyperLink Column to Telerik RadGrid Code Behind

Telerik > RadGrid > GridHyperLinkColumn





Each row in a Hyperlink column will contain a predefined hyperlink. This link is not the same for the whole column and can be defined for each row individually.

DataNavigateUrlFields: Gets or sets a string, representing a comma-separated enumeration of DataFields from the data source, which will form the url of the windwow/frame that the hyperlink will target.

DataNavigateUrlFormatString: Gets or sets a string, representing a comma-separated enumeration of DataFields from the data source, which will form the url of the windwow/frame that the hyperlink will target.
Example:
Add hyperlink column to RadGrid programmatically

RadGrid grd = new RadGrid();
GridHyperLinkColumn linkColumn = new GridHyperLinkColumn();
string[] fld = { "id" };
linkColumn.DataNavigateUrlFields = fld;
linkColumn.DataNavigateUrlFormatString = "Default.aspx?ID={0}";
linkColumn.HeaderText = "Id";
grd.Columns.Add(linkColumn);









DataTable.Select Method (String) c#

C# > Data   > DataTable > Select

DataTable Select method gets an array of all DataRow objects that match the filter criteria.
If the column on the filter contains a null value, it will not be part of the result.

Example:

private void FilterDataTable(string filter)
{
    DataTable table = DataSet1.Tables["Person"];
    DataRow[] foundRows;

    // Use the Select method to find all rows matching the filter. Sample: filter = "name = 'dan' "
    foundRows = table.Select(expression);
    for(int i = 0; i < foundRows.Length; i ++)
    {
        Console.WriteLine(foundRows[i][0] );
    }
}