How to read from Details view

Hi there,

I'm using asp.net 2.0 vb

And I wrote this

Protected Sub GridView1_SelectedIndexChanged(ByVal sender As Object, ByVal e
As System.EventArgs) Handles GridView1.SelectedIndexChanged
txtGNID.Text = Me.GridView1.SelectedRow.Cells(1).Text
End Sub

Every time when I slecet row my text box will show the selected cell value
(in this case is my VendorID)

Now I have a DetailsView

Protected Sub DetailsView1_PageIndexChanging(ByVal sender As Object, ByVal e
As System.Web.UI.WebControls.DetailsViewPageEventArgs) Handles
DetailsView1.PageIndexChanging

lblColorID.Text = ?

End Sub

What is the equivalent to the Grid view

I tried: lblColorID.Text = Me.DetailsView1.FindControl("ColorID").ID
but no luck

Thanks,

Ed Dror

RE: How to read from Details view

Hi Ed,

As for the DetailsView cell reading question you mentioned, I've performed
some research on my side. Here are what I found:

** In DetailsView, when you change the page index, it will first fire the
PageIndexChanging/PageIndexChanged event, at that time, new data(row)
hasn't been bound to DetailsView. The DataBound happend after the
PageIndexChanged. Therefore, "PageIndexChanged" is not the proper place to
retrieve the new updated values from DetailsView. Instead, I suggest using
the "DataBound" event which will fire not only when changing index but also
at the initial databinding time.

** In addition, for retrieving values from DetailsView. if the field you
want to rettrieve is a key column(set as "DataKey" in DetailsView), you can
use DetailsView.DataKey.Value/Values to visit it. If it is not a key
column, you can access it through the
DetailsView.Row(index).Cells(index).Text

Here is a simple test page I used on my side which demonstrate using the
Databound event to retrieve the updated values(of the new selected record):

=========aspx ===========

Re: How to read from Details view

Steven,

I'm getting
Index was out of range. Must be non-negative and less than the size of the
collection.
Parameter name: index

for Databound event
lblColorID.Text = DetailsView1.Rows(0).Cells(1).Text

Thanks,

Ed Dror







"Steven Cheng [MSFT]" wrote in message
news:4fCEUTTlIHA.7196@TK2MSFTNGHUB02.phx.gbl...
> Hi Ed,
>
> As for the DetailsView cell reading question you mentioned, I've performed
> some research on my side. Here are what I found:
>
> ** In DetailsView, when you change the page index, it will first fire the
> PageIndexChanging/PageIndexChanged event, at that time, new data(row)
> hasn't been bound to DetailsView. The DataBound happend after the
> PageIndexChanged. Therefore, "PageIndexChanged" is not the proper place to
> retrieve the new updated values from DetailsView. Instead, I suggest using
> the "DataBound" event which will fire not only when changing index but
> also
> at the initial databinding time.
>
> ** In addition, for retrieving values from DetailsView. if the field you
> want to rettrieve is a key column(set as "DataKey" in DetailsView), you
> can
> use DetailsView.DataKey.Value/Values to visit it. If it is not a key
> column, you can access it through the
> DetailsView.Row(index).Cells(index).Text
>
> Here is a simple test page I used on my side which demonstrate using the
> Databound event to retrieve the updated values(of the new selected
> record):
>
> =========aspx ===========
>
>

Re: How to read from Details view

Hi Ed,

Since you get "Index out of range exception", it is likely that you've
referenced the wrong cell in the DetailsView. Generally, you can turn on
page output trace as below(so as to inspect the control tree structure of
all the controls on page):

<%@ Page Language="C#" Trace="true" ...%>

Also, you can post a simplified aspx page template here so that I can have
a look to see what's the structure of your Detailsview control.

Sincerely,

Steven Cheng

Microsoft MSDN Online Support Lead


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--------------------
>From: "Ed Dror"
>References:
<4fCEUTTlIHA.7196@TK2MSFTNGHUB02.phx.gbl>
>Subject: Re: How to read from Details view
>Date: Fri, 4 Apr 2008 13:56:39 -0700

>Steven,
>
>I'm getting
>Index was out of range. Must be non-negative and less than the size of the
>collection.
>Parameter name: index
>
>for Databound event
>lblColorID.Text = DetailsView1.Rows(0).Cells(1).Text
>
>Thanks,
>
>Ed Dror
>
>
>
>
>
>
>
>"Steven Cheng [MSFT]" wrote in message
>news:4fCEUTTlIHA.7196@TK2MSFTNGHUB02.phx.gbl...
>> Hi Ed,
>>
>> As for the DetailsView cell reading question you mentioned, I've
performed
>> some research on my side. Here are what I found:
>>
>> ** In DetailsView, when you change the page index, it will first fire the
>> PageIndexChanging/PageIndexChanged event, at that time, new data(row)
>> hasn't been bound to DetailsView. The DataBound happend after the
>> PageIndexChanged. Therefore, "PageIndexChanged" is not the proper place
to
>> retrieve the new updated values from DetailsView. Instead, I suggest
using
>> the "DataBound" event which will fire not only when changing index but
>> also
>> at the initial databinding time.
>>
>> ** In addition, for retrieving values from DetailsView. if the field you
>> want to rettrieve is a key column(set as "DataKey" in DetailsView), you
>> can
>> use DetailsView.DataKey.Value/Values to visit it. If it is not a key
>> column, you can access it through the
>> DetailsView.Row(index).Cells(index).Text
>>
>> Here is a simple test page I used on my side which demonstrate using the
>> Databound event to retrieve the updated values(of the new selected
>> record):
>>
>> =========aspx ===========
>>
>>