datatable.HasCh anges() ?

[mrstrong]

Gday,

Have been going through the walkthrough for a distributed application:
http://msdn2.microsoft.com/en-us/library/1as0t7ff.aspx

and it appears to suggest in the SaveData_Click method that you can check a
datatable for changes, ie

if (CustomerData.H asChanges())

However when I try to build this I get the error:

Error 1 '<blah>DataTabl e' does not contain a definition for 'HasChanges'

Am I doing something stupid or do datatables not have this method available?

Thanks,

Peter

[Jon Skeet [C# MVP]]

mrstrong <mr******@hotma il.com> wrote:

Have been going through the walkthrough for a distributed application:
http://msdn2.microsoft.com/en-us/library/1as0t7ff.aspx

and it appears to suggest in the SaveData_Click method that you can check a
datatable for changes, ie

if (CustomerData.H asChanges())

However when I try to build this I get the error:

Error 1 '<blah>DataTabl e' does not contain a definition for 'HasChanges'

Am I doing something stupid or do datatables not have this method available?

There is no DataTable.HasCh anges() method - there is only
DataSet.HasChan ges().

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

[mrstrong]

"Jon Skeet [C# MVP]" <sk***@pobox.co m> wrote in message
news:MP******** *************** *@msnews.micros oft.com...

mrstrong <mr******@hotma il.com> wrote:

and it appears to suggest in the SaveData_Click method that you can check
a
datatable for changes, ie

if (CustomerData.H asChanges())

However when I try to build this I get the error:

Error 1 '<blah>DataTabl e' does not contain a definition for 'HasChanges'

Am I doing something stupid or do datatables not have this method
available?

There is no DataTable.HasCh anges() method - there is only
DataSet.HasChan ges().

Thanks. So the 'save' method on the walkthrough was not right?

http://msdn2.microsoft.com/en-us/library/1as0t7ff.aspx

Regards,

Peter

[Jon Skeet [C# MVP]]

mrstrong <mr******@hotma il.com> wrote:

There is no DataTable.HasCh anges() method - there is only
DataSet.HasChan ges().

Thanks. So the 'save' method on the walkthrough was not right?

http://msdn2.microsoft.com/en-us/library/1as0t7ff.aspx

Looks like it, yes.

--
Jon Skeet - <sk***@pobox.co m>
http://www.pobox.com/~skeet Blog: http://www.msmvps.com/jon.skeet
If replying to the group, please do not mail me too

[theiwaz]

Correct the DataTable class just defines DataTable.GetCh anges() Method.

[mrstrong]

"theiwaz" <ma***********@ ascirum.de> wrote in message
news:11******** **************@ g49g2000cwa.goo glegroups.com.. .

Correct the DataTable class just defines DataTable.GetCh anges() Method.

Hmmm.. Not in front of my work machine at present so cant try this out, but
can a datatable be NULL?

So could the following be used to test for changes to a datatable:

if (DataTable.GetC hanges() != NULL)

?

(not sure about the exact syntax)

Peter