Hi Saravana,
I actually managed to solve this problem by using a technique in another of
your articles
(
http://www.microsoft.com/india/msdn/...uestions.aspx). I
simply borrowed the same technique for preselecting an item in a DDL, and
applied it to the textfield property of the user control, and it works like
a charm.
BUT, I have a new error now!
I have included my code for the ItemDataBound event below:
This code works fine, until I click the Update button in the datagrid, and
then I get an error
Private Sub grdAlbums_ItemDataBound(ByVal sender As Object, ByVal e As
System.Web.UI.WebControls.DataGridItemEventArgs) Handles
grdAlbums.ItemDataBound
If e.Item.ItemType = ListItemType.EditItem Then
Dim drv As DataRowView = CType(e.Item.DataItem, DataRowView)
'get current values
Dim currentArtist As String = CType(drv("ArtistName"), String)
Dim currentDate As String
If drv("AlbumReleaseDate") Is DBNull.Value Then
currentDate = ""
Else
currentDate = CType(drv("AlbumReleaseDate"), String)
End If
'preselect correct item in DDL
Dim ddl As DropDownList
ddl = CType(e.Item.FindControl("lstArtists_edit"), DropDownList)
ddl.Items.FindByText(currentArtist).Selected = True
'set value of text field in Calendar control
Dim ucCal As CalendarUserControl
ucCal = CType(e.Item.FindControl("calRelDate_edit"), CalendarUserControl)
ucCal.TextValue = currentDate
End If
End Sub
This code works fine when I click the Edit button. But after I edit a
field, and click the Update button, I get this error:
Object reference not set to an instance of an object.
And the line of code that trips the error is this:
Line 336: ddl.Items.FindByText(currentArtist).Selected = True
I think I know why this is happening (when the grid goes back to display
mode, the DDL object no longer exists), but I don't know how to fix it.
Thanks for your help!
Cheers,
Paul
"Saravana" <sa******@sct.co.in> wrote in message
news:#I**************@TK2MSFTNGP10.phx.gbl...
Hi paul,
I tried in datagrid, it is working fine for me. I didnt send the
products.xml with my source code if you want i will send it to you. you
place it in d:\ or change the source code to read that file from specific
location. Use "TextValue" property of the user control to set the default
value for Calendar control. If you want more detail on this, get back to
me.
--
Saravana
Microsoft India Community Star,
MCAD,SE,SD,DBA.
PS: I have sent products.xml to your personal account
"Paul Hobbs" <pa**@mobius.net.au> wrote in message
news:uZ*************@TK2MSFTNGP09.phx.gbl... Hi Saravana,
I have looked at your article and the popup calendar works perfectly.
Thankyou! But, I am having a problem using it in a datagrid.
I can place the CalendarUserControl in the ItemTemplate of the datagrid, and it works as expected when I am editing a particular row of the grid.
But, I am having difficulty binding the user control so that it displays the
current value of that field.
For example, the datagrid is bound to a table of customers, and one
column is the customer's birthday. When the page loads, all the birthdays are
displayed. When I click Edit, I want the CalendarUserControl to show
the birthday for the customer in that row. But at the moment, it is just
blank.
Any advice you can give would be greatly appreciated.
Cheers,
Paul Hobbs
PS: I downloaded the source code from your article below, and the
datagrid example doesn't work because the zip file doesn't include the
Products.xml file. Are you perhaps able to create a datagrid example that uses your
CalendarUserControl, but where the datagrid is bound to
NorthWind.Orders, and the CalendarUserControl is bound to Orders.RequiredDate. ;-)
"Saravana" <sa******@sct.co.in> wrote in message
news:e#**************@TK2MSFTNGP10.phx.gbl... Check out this article,
http://www.microsoft.com/india/msdn/...ndarinASP.aspx
--
Saravana
Microsoft India Community Star,
MCAD,SE,SD,DBA.
"mkobus" <tu******@hotmail.com> wrote in message
news:2c**************************@posting.google.c om...
> Im relatively new, so please be patient with me...
>
> I need to update a parent .aspx screen from a popup and close the
> popup. Normally I would use
> 'window.opener.location.reload(true);self.close(); ' but i need the
> parent window not to reload or else data that the user has already
> entered will be lost during the IsPostBack.
>
> I need the 'Apply' button on the popup to trigger the 'Update'
button > on the parent screen. The script ive seen is like this...
> 'window.opener.location.Form1.Button1.Click(); self.close();' but I
> get a Javascript Error that reads
> 'window.opener.location.Form1.Button1' is null or not an object.
>
> Any thoughts? Ive seen other posts that say to make sure Button1 on
> Form1 is within the <form> tags and it is. Any help would be
> appreciated!
