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geting string from integer using enums

Posted By:      Posted Date: October 06, 2010    Points: 0   Category :ASP.Net

we know 

The .NET Framework contains an Enum called DayOfWeek.

so now if i have an integer 7
how can i ge the string "Saturday" using  the enum

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HowTo Marshal C++ enums and copy buffer of unsigned 16bit integer


Hi together,

I'm trying to wrap an API of a digital camera SDK (unmanaged C++). Some of the functions a working, but some of them ... :(

1. HowTo marshal  C++  enums?

This is a part of the api.h file:



	DCAM_DATATYPE_UINT8	=	0x00000001,	/* bit 0 */
	DCAM_DATATYPE_UINT16	=	0x00000002,	/* bit 1 */
	DCAM_DATATYPE_UINT32	=	0x00000008,	/* bit 3 */
	DCAM_DATATYPE_MOSAIC8	=	0x00010000,	/* bit 16, 8bit mosaic */
	DCAM_DATATYPE_MOSAIC16	=	0x00020000,	/* bit 17, 16bit mosaic */
	DCAM_DATATYPE_RGB24	=	0x00040000,	/* bit 18, 8bit*3, [ r0, g0, b0], [r1, g1, b1] */
	DCAM_DATATYPE_RGB48	=	0x00100000,	/* bit 20, 16bit*3, [ r0, g0, b0], [r1, g1, b1] */


BOOL DCAMAPI dcam_getdatatype			( HDCAM h, DCAM_DATATYPE* pType );
BOOL DCAMAPI dcam_setdatatype			( HDCAM h, DCAM_DATATYPE type );<br/>


And this is what I wrote in C#:

SSIS Error in Script task: "Conversion from string "C002" to type 'Integer' is not valid"


Hi All,

I have a script component in my Dataflow that generates Error Description string.

But I am not trying to convert anything in my Script as you can see below.

Here is the Code inside the SCR_component.


Imports System
Imports System.Data
Imports System.Math
Imports Microsoft.SqlServer.Dts.Pipeline.Wrapper
Imports Microsoft.SqlServer.Dts.Runtime.Wrapper

Public Class ScriptMain
    Inherits UserComponent
    Public Overrides Sub Input0_ProcessInputRow(ByVal Row As Input0Buffer)
     'Use the incoming error number as a parameter to GetErrorDescription
    Row.ErrorDescription = ComponentMetaData.GetErrorDescription(Row.ErrorCode)
   End Sub
End Class


When I run the package , it fails at this script task with the following error:

Description: System.InvalidCastException: Conversion from string "C002" to type 'Integer' is not valid.


The value "C002" is actually a column in the metadata and its type is "DT_STR". I am not trying to convert it in my Script as you can see

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Hi I have been trying unsuccssfully to convert a column of data (mycolumn) from a table (mytable)  that has ascii character strings comprised of characters numbered from 0-255. I need to be able to group the numeric values for each ascii string from each record, into what I call an integer group and write that value back to a different column for each respective record in the table. But, I can't figure out how to modify the following Microsoft code to perform this:



-- Create the variables for the current character string position 

-- and for the character string.

DECLARE @position int, @string char(15)

-- Initialize the variables.

SET @position = 1 

SET @string = 'Du monde entier' --here I don't know how to pass a selected column to the @string

WHILE @position <= DATALENGTH(@string) --here I need to know how to loop through each records ascii string and group the values


 SELECT ASCII(SUBSTRING(@string, @position, 1)),

  CHAR(ASCII(SUBSTRING(@string, @position, 1)))

 SET @position = @position + 1


SET NOCOUNT OFF -- then down here somewhere I need to write each converted string to integers back to the myintegerGroup column


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i have gender column with 0,1 values

i`ve to convert it into 0=male and 1=female,i tried this


BUT it is giving error

TITLE: Microsoft Visual Studio

Error at Data Flow Task [Derived Column [46]]: The data types "DT_WSTR" and "DT_I4" are incompatible for binary operator "==". The operand types could not be implicitly cast into compatible types for the operation. To perform this operation, one or both operands need to be explicitly cast with a cast operator.

Error at Data Flow Task [Derived Column [46]]: Attempt to set the result type of binary operation "Gender == 0" failed with error code 0xC0047080.

Error at Data Flow Task [Derived Column [46]]: Computing the expression "[Gender] ==0?"Male":[Gender]==1?"Female":"NA"" failed with error code 0xC0047084. The expression may have errors, such as divide by zero, that cannot be detected at parse time, or there may be an out-of-memory error.

Error at Data Flow Task [Derived Column [46]]: The expression "[Gender] ==0?"Male":[Gender]==1?"Female":"NA"" on "input column "Gender" (114)" is not valid.

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Conversion from string to type 'Integer' is not valid


Hi Guys,

I have the following IF Statement checking if the function GetNexstAddress (which gets the ClientID from  GetClientFleetInfo(i).CLIENTID) . SECONDARYCITY

is there.



If GetNextAddress(GetClientFleetInfo(i).CLIENTID).SECONDARYCITY(0) = Nothing Then
NextAddress = " No next Destination"
NextAddress = GetNextAddress(GetxxxxFleetInfo(i).TNO).CITY(0)
End If


somehow I get the error.

+exception{"Conversion from string "111 AA BB" to type 'Integer' is not valid."}System.Exception


Do you have any idea how to fix this?

PS: I have searched through the forum but not found an answer yet.


Workflow create item returning integer... Should be a string.




Im passsing information to a new item in a different list using the create item workflow.


It seems to work from apart from one, critical field. The create item should (i hope) pass a valie from a field  'FIELD' in List A to 'FIELD' in ListB.   in list a the field is a lookup from a reference list.

The create new List item workflow ____ it but only returns the type as an integer (an its the oonly option) .

Can you explain where im going wrong?


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How do I create the LPCSTR such that it has \\.\pipe\CC-12A2 if 12A2 is the PID in hex.





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str1 = "hello how are you today mr john"

str2 = "how today"

and in return it shoud highlight the words "how" and "today".

Any ides? I prefer if its possible using reg expression...Thanks

Could some one tell me whats the Problem with this String Manipulation ??? C#.net



I store some values from code behind to a label which is Hidden !

<asp:Label ID="lbl_Hidden" runat="server" Visible = "false"></asp:Label>

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stringvalue = lbl_Hidden.Text;

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I've a character 'A' in the string and i'm unable to replace it with a space !

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Example- %%D1,100,0,0004[data...][0d0a]

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