Solved

Trouble with DetailsView, OnItemUpdating

Posted on 2007-12-05
7
2,142 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
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 

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

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Authentication of Web Services 3 46
Need to pass a connection through class/Method 1 39
Class object 2 24
Error in JQuery 5 34
Extention Methods in C# 3.0 by Ivo Stoykov C# 3.0 offers extension methods. They allow extending existing classes without changing the class's source code or relying on inheritance. These are static methods invoked as instance method. This…
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
You have products, that come in variants and want to set different prices for them? Watch this micro tutorial that describes how to configure prices for Magento super attributes. Assigning simple products to configurable: We assigned simple products…
This is a video describing the growing solar energy use in Utah. This is a topic that greatly interests me and so I decided to produce a video about it.

948 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

Need Help in Real-Time?

Connect with top rated Experts

22 Experts available now in Live!

Get 1:1 Help Now