Re: Dataset in C sharp - C# Discussion Boards

4-Jul-07 0:34

Normally I don't do blatant self promotion, but I feel that your case is different. Please read these [^] guidelines, especially the section on reposting a question.

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Dataset in C sharp

kibromg4-Jul-07 0:11

4-Jul-07 0:11

Hi,
My problem is when i merge one dataset with the previous one, the content of the previous dataset disapear.hence i only get one dataset which is the last merge operation.
I keeps loosing the prevoius merge operation.

Please if you can give me an example, on how i can retain the previous merge.

Thanks

Re: Dataset in C sharp

J4amieC4-Jul-07 0:22

J4amieC

4-Jul-07 0:22

Reposting the same question is considered rude.

If you dont understand the functionality of Merge try re-reading the docs.

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Re: Dataset in C sharp

kibromg4-Jul-07 0:30

visual source safe does not get correct file.

4-Jul-07 0:30

Thanks for your comment!,

I have used from your link :

DataSet.Merge (DataSet, Boolean)

My two dataset have the same schema.what i want to keep the result of the dataset in to one datset
that will keeps building up the dataset which out loosing the previous datset operation.

Thanks

arkiboys4-Jul-07 0:03

arkiboys

4-Jul-07 0:03

Get the latest files from VSS.
There are several projects in the solution.
These projects refer to a web reference.
All projects build fine except one of them.
The problem is to do with the web reference.
Under web reference there is a reference to MarketdataService which is the webservice.
But every time I delete and add the web reference, it adds the extension 1 to the end of it i.e. MarketDataService1
On the hard drive I can see the new folder is added and even deleting it and re-adding the web reference still adds the extension 1 to the web reference name.
Not sure why this is happening.
Thanks

Pete O'Hanlon4-Jul-07 0:07

4-Jul-07 0:07

Run Analyze on your sourcesafe database and check to see if there are any corruptions in it.

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arkiboys4-Jul-07 0:17

arkiboys

4-Jul-07 0:17

VSS is getting the correct files it seems because on my hard drive I can see the correct files.
But in the project, it does not show the web reference which is in VSS.
Thanks

Pete O'Hanlon4-Jul-07 0:32

4-Jul-07 0:32

Sorry - I should have read your post better (hint - you don't need to put a new sentence on a new line as it makes it harder to read). The issue is that the system thinks that you already have MarketDataService installed in IIS. You need to open IIS and remove the old version before you attempt to bind to the one in VSS.

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arkiboys4-Jul-07 0:46

arkiboys

4-Jul-07 0:46

solved. thanks

Pete O'Hanlon4-Jul-07 0:48

Preserving the old values in an array

4-Jul-07 0:48

No problem - glad to help.

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uninstallation

D2raghu3-Jul-07 23:37

D2raghu

3-Jul-07 23:37

well i have a visual studio created setup. Installation goes fine. The application creates some data file in its installation folder.

well when i uninstall the application using the "Add/Remove programs" wizard of windows xp, the data files created by application are not deleted.
plzz help

Re: uninstallation

Colin Angus Mackay3-Jul-07 23:57

Colin Angus Mackay

3-Jul-07 23:57

Because the installer didn't put the data file there. And neither should your program. If it needs to create data files it needs to put them in the correct place - and a subdirectory of Program Files isn't it.

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M. J. Jaya Chitra3-Jul-07 23:37

M. J. Jaya Chitra

3-Jul-07 23:37

Hai everybody,

Can you please tell me how to preserve the existing values in an array while re-dimensioning.
(In VB.Net we are having "Preserve" keyword)

Best Regards,
M. J. Jaya Chitra

Re: Preserving the old values in an array

Colin Angus Mackay3-Jul-07 23:50

Colin Angus Mackay

3-Jul-07 23:50

M. J. Jaya Chitra wrote:
Can you please tell me how to preserve the existing values in an array while re-dimensioning.

I presume you mean resizing.

Arrays are not resizable in C# (nor in VB.NET, incidentally. It is a trick to allow you to think they are resizable).

If you need a resizable array use something like an ArrayList

But, if you do need to make the array bigger then create a new one, copy the values over, and then change your existing references to the new array. The old one will drop out of scope and be picked up by the garbage collector.

Re: Preserving the old values in an array

M. J. Jaya Chitra3-Jul-07 23:54

M. J. Jaya Chitra

3-Jul-07 23:54

Colin Angus Mackay wrote:
use something like an ArrayList

Thank you for your solution

Best Regards,
M. J. Jaya Chitra

Re: Preserving the old values in an array

Dave Doknjas4-Jul-07 3:40

Dave Doknjas

4-Jul-07 3:40

.NET 2 has an Array.Resize static method which behaves identically to the ReDim Preserve operation in VB. It only works for 1-dimensional arrays however. But unless you really need a proper array, one of the collections such as List<t> are probably better suited.

David Anton
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merge Datasets

kibromg3-Jul-07 23:27

3-Jul-07 23:27

Hi All,
I have a stored procedure that returns a dataset( which contains two tables).

I have to run the stored procedure a couple of times and need to keep the all the datasets.

Is is possible to merge the result of a new dataset in to previous one as many as i can?

dsnew.merge(dsold)
dsnew1.merge(dsnew)
dsnew2.merge(dsnew1) etc.........

so that i can have all the results of the datasets in Dsnew2

Thanks

Re: merge Datasets

J4amieC3-Jul-07 23:35

J4amieC

3-Jul-07 23:35

RTFM?

http://msdn2.microsoft.com/en-us/library/system.data.dataset.merge.aspx[^]

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Re: merge Datasets

kibromg3-Jul-07 23:52