C# - Listview And Datalist Not Updating,inserting?

Apr 17, 2010

Data entered in textboxes is not getting updated in database. In debug mode I see that text1 and text2 in ItemUpdating event contain the same values as they had before calling ItemUpdating.

Here's my listview control:

<asp:ListView ID="ListView1" runat="server"
onitemediting="ListView1_ItemEditing"
onitemupdating="ListView1_ItemUpdating"[code]....

Codebehind file:protected void ListView1_ItemEditing(object sender, ListViewEditEventArgs e)
{
ListView1.EditIndex = e.NewEditIndex;
BindList();[code]....

What's wrong with updating of text1.Text, text2.Text in ItemUpdating event? Should I use e.NewValues property? If so, how to use it?

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[Code]....

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<asp:Parameter Name="Class" Type="String" />
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<asp:Parameter Name="OtherInfo5" Type="Boolean" DefaultValue="false" />
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<asp:Label ID="StudentIDLabel" runat="server" Text='<%# Eval("StudentID") %>' />
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<asp:Label ID="ClassLabel" runat="server" Text='<%# Eval("Class") %>' />
<asp:Label ID="DateLabel" runat="server" Text='<%# Eval("Date") %>' />
<asp:Label ID="TermLabel" runat="server" Text='<%# Eval("Term") %>' />
<asp:Label ID="YearLabel" runat="server" Text='<%# Eval("Year") %>' />
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<td>
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<td>
<asp:Label ID="GradeLabel" runat="server" Text='<%# Eval("Grade") %>' />
</td>
<td>
<asp:Label ID="CommentsLabel" runat="server" Text='<%# Eval("Comments") %>' />
</td>
<td>
<asp:Label ID="NotesLabel" runat="server" Text='<%# Eval("Notes") %>' />
</td>
<td>
<asp:CheckBox ID="ReadCheckBox" runat="server" Checked='<%# Eval("Read") %>'
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<td>
<asp:CheckBox ID="OtherInfo1CheckBox" runat="server"
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<asp:CheckBox ID="OtherInfo2CheckBox" runat="server"
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<asp:CheckBox ID="OtherInfo4CheckBox" runat="server"
Checked='<%# Eval("OtherInfo4") %>' Enabled="false" />
<asp:CheckBox ID="OtherInfo5CheckBox" runat="server"
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<tr style="background-color: #FAFAD2;color: #284775;">
<td>
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
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<td>
<asp:Label ID="GradeIDLabel" runat="server" Text='<%# Eval("GradeID") %>' />
<asp:Label ID="StudentIDLabel" runat="server" Text='<%# Eval("StudentID") %>' />
<asp:Label ID="ProfLabel" runat="server" Text='<%# Eval("Prof") %>' />
<asp:Label ID="ClassLabel" runat="server" Text='<%# Eval("Class") %>' />
<asp:Label ID="DateLabel" runat="server" Text='<%# Eval("Date") %>' />
<asp:Label ID="TermLabel" runat="server" Text='<%# Eval("Term") %>' />
<asp:Label ID="YearLabel" runat="server" Text='<%# Eval("Year") %>' />
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<td>
<asp:Label ID="SourceLabel" runat="server" Text='<%# Eval("Source") %>' />
</td>
<td>
<asp:Label ID="GradeLabel" runat="server" Text='<%# Eval("Grade") %>' />
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<asp:Label ID="CommentsLabel" runat="server" Text='<%# Eval("Comments") %>' />
</td>
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<asp:CheckBox ID="OtherInfo3CheckBox" runat="server"
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<asp:CheckBox ID="OtherInfo4CheckBox" runat="server"
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<asp:CheckBox ID="OtherInfo5CheckBox" runat="server"
Checked='<%# Eval("OtherInfo5") %>' Enabled="false" />
<asp:CheckBox ID="OtherInfo6CheckBox" runat="server"
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<asp:CheckBox ID="OtherInfo7CheckBox" runat="server"
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<asp:CheckBox ID="OtherInfo8CheckBox" runat="server"
Checked='<%# Eval("OtherInfo8") %>' Enabled="false" />
<asp:CheckBox ID="OtherInfo9CheckBox" runat="server"
Checked='<%# Eval("OtherInfo9") %>' Enabled="false" />
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<table runat="server"
style="background-color: #FFFFFF;border-collapse: collapse;border-color: #999999;border-style:none;border-width:1px;">
<tr>
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<tr style="">
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<asp:TextBox ID="ProfTextBox" runat="server" Text='<%# Bind("Prof") %>' />
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<asp:CheckBox ID="OtherInfo9CheckBox" runat="server"
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<asp:TextBox ID="YearTextBox" runat="server" Text='<%# Bind("Year") %>' />
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<asp:TextBox ID="SourceTextBox" runat="server" Text='<%# Bind("Source") %>' />
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<asp:TextBox ID="GradeTextBox" runat="server" Text='<%# Bind("Grade") %>' />
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Sep 20, 2010

Here's the next instalment of my asp.net data access nightmare!

I've got a listview on my page, and when I run the page it correctly displays the data that it should. However, when I add data into the empty new record and hit the 'Insert' button the page posts back but the record isn't inserted. Annoyingly, I don't get any error!

The listview's datasource has an INSERT command and insert parameters specified. The button seems to be triggering the listview's insert method because the ItemInserting event fires.

With no error message to go on I'm struggling to figure out what the problem is. I have a feeling it's something to do with the makeup of the page. The listview in question is nested within an Accordion control and the listview's data source isn't set until runtime, when it's done in the ItemDataBound event of the Accordion control. As I say, though, it does RETRIEVE data correctly, it's just the inserting that's a problem.

I created a new, blank page with just this listview on it using the same code but not nesting it within any other control and hardcoding the datasource instead of setting it at runtime and that works perfectly, so I'm confident that my INSERT command, insert parameters and so forth are correct.

I've tried to get my listview to break, deliberately leaving out insert parameters and so forth just so it'll give me an error message but it never does! It's as if the insert isn't taking place at all, except that because the ItemInserting even takes place I'm assuming that it is.

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Inserting Data Into Listview From Textbox Controls On The Form

Jan 20, 2013

My project is in ASP.net and C#.I am doing webbased desktop application.I have some 4-5 textboxes on the webform like ItemCode, ItemName Qty Rate Amt and a Button called Add on the click event of the Add button i want the data from the textboxes to be inserted or added to the ListView, user can add multiple entries to the ListView through this textboxes and then finally he will have a button called save on the click of save button.i want this LIstView data to be inserted into the SQL Table

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ListView Inserting Event - ListViewInsertEventArgs Values Collection Is Empty?

Aug 6, 2010

Given the following InsertItemTemplate (simplified) I'm not getting anything back in the event object's Values collection.

[code]....

I'm binding the listview to a collection attached to my nHibernate model object (SearchObject.SearchItems). This collection doesn't have insert or update handling like an object datasource would, so I want to handle the insert/update events manually. Is there a way to get these values to come through automatically, or do I have to manually grab each value from its control when I handle this event?

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Forms Data Controls :: Inserting Item Manually In A ListView?

Feb 21, 2011

I am trying to insert manually new items in a Listview control using objects. The item seems to be inserted, but when the page is sent back to the browser, there is nothing there. Here is the code that I am using:

[Code]....

I can assign a list of object to the datasource, but when I try to input a new object to the list of items from the ListView, it doesn't work.

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Data Controls :: ListView Not Updating?

Oct 17, 2012

I have the following code:

<table>
<asp:ListView ID="ltvOrderDetails"
runat="server"

[Code]....

My problem is that the db item is updated with NULL values instead of values from controls.

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Forms Data Controls :: Inner Datalist Is Not Updating?

Feb 15, 2011

I have a requirements ,in that i am using nested datalists. here the problem is i am try to updating inner datalist,but i am unable to edit the inner datalist .In the child item child datalist is not appearing?

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Forms Data Controls :: Not Updating Database From DataList

Mar 14, 2011

I have a DataList that on Update calls a function "DataList1_UpdateCommand" to update the data

OnUpdateCommand="DataList1_UpdateCommand"

It does not actually update the new value typed in. I placed a debug on the line below, but the text in the "FieldBalance" displays the original value and not the updated value, but the web pages does display what I typed in and not the original.

Dim FieldBalance As TextBox = CType(e.Item.FindControl("txtBalance"), TextBox)
Below is the DataList code and the DataList1_UpdateCommand sub

[Code]....

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Forms Data Controls :: Making A Self-updating Friends Datalist?

Mar 18, 2010

i'd like to have a datalist displaying which friends a user has that are "online now" or at least "were online within the last 5 minutes"

assume i have a database of user profiles, and another of friends, and i can succesfully get a list of the user's friends into the datalist already. i also have a "lastlogin" datevar that i can easily pull that'll tell me the last time this user was logged in.

i want this datalist to auto-update without the user having to do it, or notice, unless online users change. it shouldn't refresh the entire page or anything, i want to tuck it away in a corner for the user to check on while his browser sits on the page if he wants.

i have no experiencing setting up any kind of automated or timed interval process for my .net c# site, and i'm generally a novice so please be gentle. where do i start this?

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Forms Data Controls :: Inserting / Updating Sql Data From A Listbox In Formview?

Jun 2, 2010

I have a web page with a gridview & formview (master/detail relationship) combo. On page load the gridview shows all records from a SQL table. On my page I have a button that when clicked shows the formview in Insert mode to allow users to add a new record to the data. I have also added a column to my gridview that has a link. When a user clicks this link it hides the gridview and shows the formview in edit mode with the detail from the record selected from the gridview.

In my formview I am using a listbox control to allow users to select multiple values. The choices in the listbox are populated by a SQL data table. I have successfully written code to post the selected listbox values to my SQL data field during Insert. When the user selects a record to edit I have code in the databound event to select values in the listbox from the choices based on the value in the sql data field. This works as well. My problem is that I cannot figure out the correct code to update my SqL data when a user is editing the record and makes changes to the selected listbox value. I have included my design code for my listbox in my formview edittemplate and also my behind code that I have attempted.

<td
style="width: 454px">
<asp:ListBox
ID="lbox_ConstructionType"
runat="server"
DataSourceID="SqlDataConstructionTypes"
DataTextField="Construction_Type"
DataValueField="Construction_Type"
SelectionMode="Multiple"
Width="144px"></asp:ListBox>
<asp:TextBox
ID="tbox_Ctype"
runat="server"
Text='<%# Bind("ConstructionTypeID") %>'></asp:TextBox></td>

[Code]....

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