datagrid

Re: datagrid

Almost everybody in this newsgroup is using VB6 or lower. While
you may get a stray answer to VB.NET (including VB2003 and VB2005
which has dropped .NET from its name) questions here, you should
ask them in newsgroups devoted exclusively to .NET programming
(the languages are different enough to warrant separate newsgroup
support). Look for newsgroups with either the word "dotnet" or
"vsnet" in their name.

For the microsoft news server, try these newsgroups for Visual
Basic .NET related questions...

microsoft.publi c.dotnet.langua ges.vb
microsoft.publi c.dotnet.langua ges.vb.upgrade
microsoft.publi c.dotnet.langua ges.vb.controls
microsoft.publi c.dotnet.langua ges.vb.data

And these for more general .NET questions

microsoft.publi c.dotnet.genera l
microsoft.publi c.vsnet.general

Note: There are many other .NET newgroups (use the first three
"fields" from the last two as templates when searching for them),
but the above ones should get you started.

Rick



"Dmitry Akselrod" <dmitry@nospam. com> wrote in message
news:stOdnaGtmd bwHvbeRVn-vA@comcast.com. ..[color=blue]
> Hi,
>
>
>
> I am using a standard .NET 1.0 Datagrid. Actually, I am using[/color]
two, bound to[color=blue]
> a master-detail relationship. Both DataGrids are bound to a[/color]
datasource. I[color=blue]
> have the MSDN version of the DateTime picker functioning quite[/color]
well in the[color=blue]
> datagrid. I am also tracking a double-click event within[/color]
another column in[color=blue]
> the datagrid. The column is just text. When the double-click[/color]
event trigger[color=blue]
> fires, I load a borderless form, from which a user can pick an[/color]
item from a[color=blue]
> ListBox control. Once the user picks an item, the item text is[/color]
entered into[color=blue]
> the cell the user double-clicked on.
>
>
>
> datagrid1.item( datagrid1.curre ntrowindex,[/color]
datagrid.curren tcell.colnumber ) =[color=blue]
> frmPopUp.lbCont rol1.selectedIt em()
>
>
>
> I then automatically move the user input to the next cell to the[/color]
right. The[color=blue]
> value from the listbox is entered into the cell. However, the[/color]
datagrid does[color=blue]
> not acknowledge that any changes were made to the dataset. It[/color]
seems that[color=blue]
> the datagrid change detection is bound to user input, such a[/color]
keyboard event.[color=blue]
>
>
>
> I have attempted to surround the datagrid.item property with[/color]
BeginEdit and[color=blue]
> EndEdit methods, to no avail. I have attempted to use[/color]
CurrencyManager . I[color=blue]
> tried incrementing and decrementing currentrowindex values, etc.[/color]
I just[color=blue]
> can't get the datagrid to see that a change was made.
>
>
>
> Of course, if you any column values in the same row, such as the
> datatimepicker value, a change to the row is detected.
>
>
>
> Is there anyway I can get the datagrid to recognize that changes[/color]
were made[color=blue]
> besides writing my own ColumnStyle?
>
>
>
> TIA
>
> Dmitry
>
>[/color]

Re: datagrid

I was able to solve my problem. I am posting a reply just in case someone
encounters the same issue.

The answer is that you cannot send an "I am editing this control"
notification to the DataGrid without inheriting a Column style in some way
shape or form. The quickest way I found to do this was to inherit the
DataGridTextBox Column style and expose the .ColumnStartedE diting protected
method. You can then call a public version of this method in your code.
This will mark the row you are editing as changed.

dmitry

"Dmitry Akselrod" <dmitry@nospam. com> wrote in message
news:stOdnaGtmd bwHvbeRVn-vA@comcast.com. ..[color=blue]
> Hi,
>
>
>
> I am using a standard .NET 1.0 Datagrid. Actually, I am using two, bound
> to a master-detail relationship. Both DataGrids are bound to a
> datasource. I have the MSDN version of the DateTime picker functioning
> quite well in the datagrid. I am also tracking a double-click event
> within another column in the datagrid. The column is just text. When the
> double-click event trigger fires, I load a borderless form, from which a
> user can pick an item from a ListBox control. Once the user picks an
> item, the item text is entered into the cell the user double-clicked on.
>
>
>
> datagrid1.item( datagrid1.curre ntrowindex, datagrid.curren tcell.colnumber )
> = frmPopUp.lbCont rol1.selectedIt em()
>
>
>
> I then automatically move the user input to the next cell to the right.
> The value from the listbox is entered into the cell. However, the
> datagrid does not acknowledge that any changes were made to the dataset.
> It seems that the datagrid change detection is bound to user input, such a
> keyboard event.
>
>
>
> I have attempted to surround the datagrid.item property with BeginEdit and
> EndEdit methods, to no avail. I have attempted to use CurrencyManager . I
> tried incrementing and decrementing currentrowindex values, etc. I just
> can't get the datagrid to see that a change was made.
>
>
>
> Of course, if you any column values in the same row, such as the
> datatimepicker value, a change to the row is detected.
>
>
>
> Is there anyway I can get the datagrid to recognize that changes were made
> besides writing my own ColumnStyle?
>
>
>
> TIA
>
> Dmitry
>
>[/color]

Re: datagrid

I just noticed you cross-posted to both a VB.NET newsgroup and a
non-VB.NET (that is, classic version of VB) newsgroup. So that it
is clear, my other response to your post was from the
microsoft.publi c.vb.general.di scussion newsgroup. Just so you are
aware, the solution you posted has zero applicability (and
meaning) to the people for whom this newsgroup serves; hence, you
should leave the microsoft.publi c.vb.general.di scussion newsgroup
out of any of your future postings. Thank you.

Rick


"Dmitry Akselrod" <dmitry@nospam. com> wrote in message
news:5q2dnVOGJI RzaPLenZ2dnUVZ_ tidnZ2d@comcast .com...[color=blue]
> I was able to solve my problem. I am posting a reply just in[/color]
case someone[color=blue]
> encounters the same issue.
>
> The answer is that you cannot send an "I am editing this[/color]
control"[color=blue]
> notification to the DataGrid without inheriting a Column style[/color]
in some way[color=blue]
> shape or form. The quickest way I found to do this was to[/color]
inherit the[color=blue]
> DataGridTextBox Column style and expose the .ColumnStartedE diting[/color]
protected[color=blue]
> method. You can then call a public version of this method in[/color]
your code.[color=blue]
> This will mark the row you are editing as changed.
>
> dmitry
>
> "Dmitry Akselrod" <dmitry@nospam. com> wrote in message
> news:stOdnaGtmd bwHvbeRVn-vA@comcast.com. ..[color=green]
> > Hi,
> >
> >
> >
> > I am using a standard .NET 1.0 Datagrid. Actually, I am using[/color][/color]
two, bound[color=blue][color=green]
> > to a master-detail relationship. Both DataGrids are bound to[/color][/color]
a[color=blue][color=green]
> > datasource. I have the MSDN version of the DateTime picker[/color][/color]
functioning[color=blue][color=green]
> > quite well in the datagrid. I am also tracking a double-click[/color][/color]
event[color=blue][color=green]
> > within another column in the datagrid. The column is just[/color][/color]
text. When the[color=blue][color=green]
> > double-click event trigger fires, I load a borderless form,[/color][/color]
from which a[color=blue][color=green]
> > user can pick an item from a ListBox control. Once the user[/color][/color]
picks an[color=blue][color=green]
> > item, the item text is entered into the cell the user[/color][/color]
double-clicked on.[color=blue][color=green]
> >
> >
> >
> > datagrid1.item( datagrid1.curre ntrowindex,[/color][/color]
datagrid.curren tcell.colnumber )[color=blue][color=green]
> > = frmPopUp.lbCont rol1.selectedIt em()
> >
> >
> >
> > I then automatically move the user input to the next cell to[/color][/color]
the right.[color=blue][color=green]
> > The value from the listbox is entered into the cell. However,[/color][/color]
the[color=blue][color=green]
> > datagrid does not acknowledge that any changes were made to[/color][/color]
the dataset.[color=blue][color=green]
> > It seems that the datagrid change detection is bound to user[/color][/color]
input, such a[color=blue][color=green]
> > keyboard event.
> >
> >
> >
> > I have attempted to surround the datagrid.item property with[/color][/color]
BeginEdit and[color=blue][color=green]
> > EndEdit methods, to no avail. I have attempted to use[/color][/color]
CurrencyManager . I[color=blue][color=green]
> > tried incrementing and decrementing currentrowindex values,[/color][/color]
etc. I just[color=blue][color=green]
> > can't get the datagrid to see that a change was made.
> >
> >
> >
> > Of course, if you any column values in the same row, such as[/color][/color]
the[color=blue][color=green]
> > datatimepicker value, a change to the row is detected.
> >
> >
> >
> > Is there anyway I can get the datagrid to recognize that[/color][/color]
changes were made[color=blue][color=green]
> > besides writing my own ColumnStyle?
> >
> >
> >
> > TIA
> >
> > Dmitry
> >
> >[/color]
>
>[/color]