Re: Passing Dataset to another WinForm

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JJ,

This would work, but it depends on what you want to do. Creating a copy
means any changes made to the dataset stay within the form... If you just
say "dsNew = ds; " then the reference to the object is passed through, and
your second form is utilising the orginal object.

So it depends on what your requirements are.

Dan.

"JJ" <JJ@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:1F54A975-3BEF-416C-B09B-6280CC42ACF3@xxxxxxxxxxxxxxxx
> Hi Dan,
>
> On the destination form I created in the constructor a parameter to
> accept a dataset instead. Then in constructor I copy dataset to private
> dataset variable like so:
>
> private DataSet dsNew;
>
> DstForm(DataSet ds)
> {
> dsNew = ds.Copy();
> }
>
> Wouldn't this work too?
>
> Thanks,
>
> JJ
>
> "Dan Bass" wrote:
>
>>
>> On your destination form you need to have a DataSet variable which
>> references a DataSet object. From here you need to provide a public
>> property
>> that allows you to set and get the object reference by this variable.
>> Once
>> this is complete, the source form which contains the DataSet to use
>> creates
>> the new form, then assigns the dataset to the property. You can then
>> utilise
>> this DataSet in the new form in the load event.
>>
>> Your code would look something like this...
>>
>> // destination form
>>
>> private DataSet _myDS;
>> public DataSet MyDS
>> {
>> get
>> {
>> return _myDS;
>> }
>> set
>> {
>> // does not create a new dataset,
>> // but gives the variable a reference to
>> // the dataset assigned to MyDS
>> _myDS = value;
>> }
>> }
>>
>>
>> // source form (before displaying/creating the new form)
>> // - code assumes you have your dataset ready
>>
>> destForm = new Form();
>> destForm.MyDS = readyDataSet;
>> destForm.ShowDialog();
>>
>>
>>
>> Hope that helps.
>> Dan.
>>
>>
>>
>>
>> "JJ" <JJ@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
>> news:BF1D8535-A1F9-46FB-B0D0-F28145D46032@xxxxxxxxxxxxxxxx
>> > Hi,
>> >
>> > I need to pass a dataset to another win form along with a
>> > SqldataAdapter.
>> > I don't want to recreate the SqlDataAdapter again either. So to pass to
>> > another Win form in my windows form app, do I create the procedure to
>> > pass
>> > by
>> > ref? Which means I don't need to add ByRef because it is defaulted by
>> > ref,
>> > correct? And in the constructor of the win form that gets created. I
>> > need
>> > to
>> > add in parameters a DataSet and SqlDataAdapter correct? What is the
>> > standard
>> > way of passing datasets around window forms?
>> >
>> > Thanks,
>> >
>> > JJ
>>
>>
>>


.

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