Solved

Trouble with DetailsView, OnItemUpdating

Posted on 2007-12-05
7
2,147 Views
Last Modified: 2012-05-05
Created a Dynamic DetailsView (basically adding bound fields to DetailsView fields) and I'm having trouble using OnItemUpdating command.

I can populate the form but I'm unable to capture any values on the update.
asp:
 
<asp:DetailsView ID="DetailViewEdit" 
   runat="server"
   AutoGenerateRows="false" 
   OnItemUpdating="DetailViewEdit_ItemUpdating"
   AutoGenerateEditButton="true"
   DefaultMode="Edit" 
   />
 
.cs code:
 
..
  BoundField bf = new BoundField();
  bf.DataField = field.Key;
  bf.HeaderText = field.Name;
  
  DetailViewEdit.Fields.Add(bf);
 
DetailViewEdit.DataKeyNames = field.Key
DetailViewEdit.DataSource = referenceDataTable;
DetailViewEdit.DataBind();
 
...
protected void DetailViewEdit_ItemUpdating(object sender, DetailsViewUpdateEventArgs e)
{
 
e.NewValues  <-- empty
e.OldValues  <-- empty
e.Keys <-- empty

Open in new window

0
Comment
Question by:ebuechel
7 Comments
 
LVL 21

Expert Comment

by:surajguptha
ID: 20415848
what do you want to do in the item updating event? kinda what you are trying to implement using that event?
0
 

Author Comment

by:ebuechel
ID: 20416428
Pulled changed key/value pairs for use in a custom store procedure call.

I could hack the request form - DetailViewEdit.ClientID.Replace('$', '_')  - but that seems a little too sloppy.


        foreach (DictionaryEntry entry in e.NewValues)
        {
              // New Edits, entry.Key : entry.Value

        }
0
 
LVL 10

Expert Comment

by:digitalZo
ID: 20418710
You have to use the DataKey to capture the values.

http://www.mcse.ms/message2536642.html
protected void DetailsView1_ItemUpdating(object sender,
 
DetailsViewUpdateEventArgs e)
 
{
 
int id = (int)DetailsView1.DataKey[0];
 
TextBox txtName = DetailsView1.FindControl("txtName") as TextBox;
 
string newname = txtName.Text;

Open in new window

0
ScreenConnect 6.0 Free Trial

Discover new time-saving features in one game-changing release, ScreenConnect 6.0, based on partner feedback. New features include a redesigned UI, app configurations and chat acknowledgement to improve customer engagement!

 

Author Comment

by:ebuechel
ID: 20419905
Not sure if that example exactly relates as I'm creating the Bound Fields on the fly:

...
  BoundField bf = new BoundField();
  bf.DataField = field.Key;
  bf.HeaderText = field.Name;
 
  DetailViewEdit.Fields.Add(bf);

DetailViewEdit.DataSource = referenceDataTable;
DetailViewEdit.DataBind();


DetailViewEdit.FindControl(field.Key) as TextBox;  <-- is null
0
 

Author Comment

by:ebuechel
ID: 20425078
http://forums.asp.net/p/1034786/1427427.aspx

Found the solution.


thx.
        for (int i = 0; i < DetailViewEdit.Fields.Count; i++)
        {
            DataControlFieldCell cellNormal = detailsView.Rows[i].Cells[0] as DataControlFieldCell;
            detailsView.Fields[i].ExtractValuesFromCell(e.Keys, cellNormal, DataControlRowState.Normal, true);
 
            DataControlFieldCell cellEdit = detailsView.Rows[i].Cells[1] as DataControlFieldCell;
            detailsView.Fields[i].ExtractValuesFromCell(e.NewValues, cellEdit, DataControlRowState.Edit, false);
        }
 
 
        foreach (string key in e.Keys.Keys)
        {
            Utilities.Log.WriteFileEntry("Key(" + key + ") - Value:" + e.Keys[key], Log.Priority.Medium);
        }
 
        foreach (string key in e.NewValues.Keys)
        {
            Utilities.Log.WriteFileEntry("NewValues Key(" + key + ") - Value:" + e.NewValues[key], Log.Priority.Medium);
        }

Open in new window

0
 
LVL 1

Accepted Solution

by:
Computer101 earned 0 total points
ID: 20592634
PAQed with points refunded (500)

Computer101
EE Admin
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

Suggested Solutions

Introduction This article series is supposed to shed some light on the use of IDisposable and objects that inherit from it. In essence, a more apt title for this article would be: using (IDisposable) {}. I’m just not sure how many people would ge…
Entity Framework is a powerful tool to help you interact with the DataBase but still doesn't help much when we have a Stored Procedure that returns more than one resultset. The solution takes some of out-of-the-box thinking; read on!
This tutorial gives a high-level tour of the interface of Marketo (a marketing automation tool to help businesses track and engage prospective customers and drive them to purchase). You will see the main areas including Marketing Activities, Design …
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

777 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