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microsoft.public.dotnet.framework.aspnet.webcontrols

Re: Repeating section control in ASP.NET

Joe Fallon

7/18/2004 11:34:00 PM

I agree.
I did this with a DataGrid control and a custom collection.
I have a button that says Add NewRecord.
When it is clicked I add a blank row to my collection and re-bind it to the
grid.
This works perfectly!

Joe Fallon



"Dale" <daleDeletepres@msndotcomNot.Net> wrote in message
news:%23LEhAXPbEHA.2972@TK2MSFTNGP12.phx.gbl...
> What you are trying to do is definitely possible in ASP.Net. It's not
> exactly trivial but it also isn't terribly difficult once you get the hang
> of the controls and classes involved. Undoubtedly, there are as many
> possible ways to do it as there are readers of this board but if I were
> doing what you're doing, I'd probably go like this:
>
> You could create a DataSet and a Repeater. Assign a table in the DataSet
as
> the DataSource property of your Repeater using myRepeater.DataSource =
> ds.Tables["myTable"];
>
> Create a new row by using the NewRow method of the table and add it to the
> table with ds.Tables["myTable"].Rows.Add(newRow);
>
> Then use myRepeater.DataBind() to bind the table to your repeater. Now
you
> have a blank row and it will display the same template as your populated
> rows but the values will be null. Make sure you test for IsDbNull and
> handle that in your repeater templates.
>
> In your ItemCommand handler of the repeater, you can save or cancel the
new
> row on postback and, if appropriate, create a new blank row for the next
> cycle.
>
> You could create your own repeater and inherit the
> System.Web.UI.WebControls.Repeater and create your own template inheriting
> the ITemplate interface.
>
> You can find a simple example of creating your own repeater at
> http://coltkwong.com/blogs/juliet/post.... The key thing on that
> site is not her exact control but rather how simple it is to create a
custom
> repeater. There are probably hundreds of other custom repeater examples
on
> the net. I just know that I used her example as the starting point for
> creating the repeater I am using in my current project at work and it has
> made my life a lot easier.
>
> Some keywords you may want to look up on google and MSDN are IsDbNull,
> ITemplate, Templated Controls, DataBind, TemplateItem,
> Repeater.OnDataBinding.
>
> Hope that helps some,
>
> Dale
>
>
> "Christoph" <jcboget@yahoo.com> wrote in message
> news:#N79JVObEHA.2340@TK2MSFTNGP10.phx.gbl...
> > > > When building a form using Infopath, you can define a repeating
> > > > section and stick form fields in that section. I'm curious if
ASP.NET
> > > > has a similar control to make it easy to design something similar
> > > > using just ASP.NET (and not Infopath)? I'd hate to think that I'll
> > > > need to write all the javascript/dhtml to mimic that functionality
and
> > > > I don't really feel the need to re-invent the wheel.
> > > > Has MS designed such a control? A 3rd party?
> > > Are you familiar with the Repeater and DataList controls? They can
> repeat
> > > arbitrary sets of controls for you, one set per input data item.
> >
> > I've looked at both of these and yes, they are really great for
repeating
> > data coming from a datasource. However, what I need is something
> > that will repeat controls that will contain user input that will be
posted
> > back to the server and ultimately inserted into a datastore. These are
> > the two things I can't figure out from reading (what little)
documentation
> > on the repeating control:
> >
> > * How to repeat a set of empty controls on the client side. For
example,
> > let's say I have 3 input text boxes. Say, for 'First Name', 'Middle
> Name',
> > 'Last Name'. And these text boxes appear on a form used to add people
> > to a table in the data store. I can display the first row of those
blank
> > boxes
> > no problem. But I'm not show how I can make it so that the end user can
> > make it so that another, blank, row appears so they can add multiple
> people
> > in one shot.
> >
> > * Related to the above, assuming it is possible, how would those new
> > controls be referenced in the code on the back end. It's easy enough to
> > reference the initial set of controls as I would just reference them by
> > name.
> > What would be the names of the new, dynamically generated controls (ie
> > the 3 input text boxes)?
> >
> > The above is the context with which I was asking my original question.
> > I apologize for not being more clear.
> >
> > Thank you for your time and assistance!
> >
> > Christoph
> >
> >
>
>