Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

How to get current text in DetailsView BoundField being edited with text box?

Posted on 2008-06-11
4
942 Views
Last Modified: 2008-06-21
Hi, I have a manual (i.e., bound to my own DataTable, not an actual data source like a database) DetailsView (with DefaultMode = Edit) on my ASP.NET web form, and I have set up several fields in it.  So elsewhere I have a link button, and when I push it I want to

1) check the data for validity
2) save it to the actual database
3) navigate to a different page

Well, it seems like I can't get the current text typed into a text box, the code below seems to return what was *initially* in the DetailsView (or my "bound" DataTable).  

Thanks very much.

How can I get the current text typed into the text box when the user clicks my LinkButton?  Is there some sort of Update method that shoots the DetailsView back to my DataTable?  Thanks...

Dim plan_num As String = CType(Me.DetailsViewPlan.Rows(0).Cells(1).Controls(0), TextBox).Text

Open in new window

0
Comment
Question by:riceman0
  • 3
4 Comments
 

Author Comment

by:riceman0
ID: 21762353

Okay, tried a slightly different approach which made sense but still didn't work.  Darn, this seemed like the right way!



    Protected Sub LinkButtonSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LinkButtonSave.Click
 
        Me.DetailsViewPlan.UpdateItem(True)
        
    End Sub
 
    Protected Sub DetailsViewPlan_ItemUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewUpdateEventArgs) Handles DetailsViewPlan.ItemUpdating
 
        Dim plan_num As String = CType(Me.DetailsViewPlan.Rows(0).Cells(1).Controls(0), TextBox).Text
        Dim dt As Data.DataTable = CType(DetailsViewPlan.DataSource, Data.DataTable)
        Dim i As Integer = dt.Columns.Count
        Dim x As String = dt.Rows(0).Item(0)
 
' plan_num still equals the wrong value
' dt is a valid data table
' i is the correct number of columns
' x still equals the OLD value (i.e., prior to what the user typed in) of that
 
    End Sub

Open in new window

0
 
LVL 22

Expert Comment

by:prairiedog
ID: 21762427
Is the field you want to validate a BoundField, or a TemplateField?
0
 

Author Comment

by:riceman0
ID: 21762557

I believe it is a bound field.  

Your question got me excited because yes, why am I accessing the textbox control instead of the cell value itself.  Unfortunately the code below (added the two assignments to "plan_num2") didn't work either, accessing the cell value returns blank strings.  Grr.
    Protected Sub LinkButtonSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LinkButtonSave.Click
 
        Dim plan_num2 As String = Me.DetailsViewPlan.Rows(0).Cells(1).Text    ' returns BLANK string, not typed data
 
        Me.DetailsViewPlan.UpdateItem(True)
 End Sub
 
 
    Protected Sub DetailsViewPlan_ItemUpdating(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewUpdateEventArgs) Handles DetailsViewPlan.ItemUpdating
 
        Dim plan_num As String = CType(Me.DetailsViewPlan.Rows(0).Cells(1).Controls(0), TextBox).Text
        Dim plan_num2 As String = Me.DetailsViewPlan.Rows(0).Cells(1).Text   ' returns BLANK string, not typed info
 
        Dim dt As Data.DataTable = CType(DetailsViewPlan.DataSource, Data.DataTable)
 
        Dim i As Integer = dt.Columns.Count
 
        Dim x As String = dt.Rows(0).Item(0)
 
 
    End Sub

Open in new window

0
 

Accepted Solution

by:
riceman0 earned 0 total points
ID: 21783962
0

Featured Post

Space-Age Communications Transitions to DevOps

ViaSat, a global provider of satellite and wireless communications, securely connects businesses, governments, and organizations to the Internet. Learn how ViaSat’s Network Solutions Engineer, drove the transition from a traditional network support to a DevOps-centric model.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

IntroductionWhile developing web applications, a single page might contain many regions and each region might contain many number of controls with the capability to perform  postback. Many times you might need to perform some action on an ASP.NET po…
Problem Hi all,    While many today have fast Internet connection, there are many still who do not, or are connecting through devices with a slower connect, so light web pages and fast load times are still popular.    If your ASP.NET page …
Although Jacob Bernoulli (1654-1705) has been credited as the creator of "Binomial Distribution Table", Gottfried Leibniz (1646-1716) did his dissertation on the subject in 1666; Leibniz you may recall is the co-inventor of "Calculus" and beat Isaac…

829 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question