Forms Data Controls :: Detailsview Entity Framework Cannot Update Existing Data?
Mar 30, 2011
I use a Detailsview, Entity Data Source to edit/update my table with only 3 columns.(it has primary keys).
Everything works fine inserts/edit in dev environment. but when i run this in release mode. i cannot update existing data in the database with the detailsview. whenever i update and save page gets refreshed, but nothing gets updated. but whenever i insert a new record, and then i try editing it. it works.?
Note: i handle DetailsviewItemUpdating,DetailsviewItemInserting events to do some custom checks.
View 1 Replies
Similar Messages:
Nov 22, 2010
How can i insert,update and delete records using entity framework data model.
View 1 Replies
Jun 29, 2010
I'm working on a new project where I have the luxury of working from a Model to Database approach using Entity Framework 4.
The project I'm working on is taking an agile approach where different phases will be rolled out over time.
Will the Model First approach work in my case? I noticed when you "Generate Database from Model" it recreates the entire schema from scratch which will obviously wipe all the data that is in the db. I was hoping for a more "Update Database from Model" approach where the db would just be altered to reflect the changes rather than recreated
View 1 Replies
Aug 3, 2010
I've a gridview with 6 coloums. First col is dropdown list and rest are text boxes.aspx page looks like this
[Code]....
I've a created a class and bounded to grid view in my Business LayerThe dropdown list was bounded to another table by using gvExpense_RowDataBound eventNo.of rows in gridview depends on no. of rows in expensetype table
View 8 Replies
Oct 25, 2010
Is there a way to export a EF 4.0 Data Model to EF 3.5?
I looked around and found that we are not able to access EF 4.0 from a ASP.Net 3.5 project here: [URL]
Our project is the 1st to go to .Net 4.0 using Entity Framework and we (the team) were wondering if there was a way for the other projects that "might" need to access our data that are still using the .Net 3.5 framework.
View 1 Replies
Feb 2, 2011
I have an ASP.NET application with existing business classes and a database schema. (which I would like to keep) Currently I am using ADO.NET for the DAL, but I would like to switch to some advanced technology there for easier data retrieval.
Is EF applicable to my situation? Can I use it without splitting up my business classes and auto code generation? Can LINQ to SQL solve my problem better?
All I want to do is map my existing classes to the existing tables and dont have to handle details of the data retrieval myself.
View 1 Replies
Jun 30, 2010
I have an EDM, it includes the entities extension and history. My goal is to use history to keep track of all the changes made to extension entity. For example, if extension with ID 223 has its property 'Name_Display' changed - I want the history entity to record this.
I'm using ASP.NET with VB.NET. Where in my code do I put the hook to say, "update the history entity" and what should that hook look like?
View 1 Replies
Feb 10, 2011
I am mapping a stored procedure to an entity by right clicking on the entity (in the .edmx) and selecting "Stored Procedure Mapping." This brings you to a Mapping Details - "Name of Entity" Window that allows you to select the insert, update, and delete stored procedures associated with the Entity. It also maps the stored procedure parameter to the Entity "Property" (Column).
I'm gettin an error "error 2042: Parameter Mapping specified is not valid." The cause of the error is fairly obvious, in the Insert stored procedure that has been selected, a 'CHAR' parameter is being mapped to an Int32 Entity Property. I altered the stored procedure parameter to match the entity, I deleted the stored procedure, readded, and reslected it as the Insert function. I also cleaned, validated, updated model from database. No matter what I do, the parameter list in the mapping details doesn't reflect the change to the stored procedure. It's stuck on a char --> int32 mapping, even though it has been changed, like it's buried deep in meta data some where.
View 2 Replies
Jun 13, 2010
I am trying to bind a Entity datasoruce in the code behind file with the following:
MembershipUser myUser = Membership.GetUser();
Guid userIdPosts = (Guid)myUser.ProviderUserKey;
//MessageBoardEntities3 is ThemeableAttribute connection string name
[code]...
View 2 Replies
Feb 4, 2011
I have a gridview and when i click on the edit button i will get the modalpopup window which is having a popup window i want to update the data in that details view and refresh the data into gridview also.
View 2 Replies
Jun 16, 2010
I am new to Entity Framework and working my way through it little by little. I think I have it figured out on how to get data into and out of 1 table at a time now the challenge is 2 tables into a gridview.
I have a user table that has a list of threads that a user can mark to track. Easy enough. Assign the userid number & threadid to a table with a push button while the user is logged in and viewing any of the posts that are on that thread. The new challange is to get only the posts that the user has marked to track. SQL easy. Entity not sure what to do.
If I make a view or stored procedure and add it to the database that would be an extra step. To join the 2 tables as in sql Select posts from posts where track.userid = @userid join track on post.userid=track.userid Seems Entity was made to avoid this type of thing. Than once the data is gathered I need to bind it to a gridview()
View 3 Replies
Aug 18, 2015
I am working with entity frame work to insert data into data base for that I write a web method and query function but data can’t insert data base following my function and web method.
/////////////////////////
function AddGridviewData() {
var AddRow = new Array();
$('[id*=Test_gridview]').find('tr:has(td)').each(function () {
var NewRow = {};
NewRow. name = $(this).find("td:eq(1)").html();
[Code] ...
There are no error and no insert the data into data base.
View 1 Replies
Sep 21, 2010
I'm writing a custom .NET MembershipProvider (not the built in one) and trying to update using Entity Framework. But of course i have no access to (Try)UpdateModel. How can i update it?
View 3 Replies
Oct 12, 2010
I have a gridview displaying "registrationtype id" (FK) from the registration table. I want it to display the related name instead of the id from the registartiontype table.
View 1 Replies
Mar 23, 2010
I'm using a DetailsView object to present a record from a database in table format. I'm actually using and ObjectSource object as the data source for the details view. In the object I am using as the source for the ObjectSource, I have paired properties that hold decimals. This is, I have a property called Year1 and another property called Year1Change. This for years 1 to six. The values from the Year1 properties are in a cell, whereas the change values are bound to texboxes. The code for the frontend is the following:
[Code]....
Now, as you can see in the tbYr2RtCh textbox, I have an OnTextChanged property to call an event handler. This is because I want to do two things when the text changes. The first one is to make the font in the textbox bold if the value it holds is different from the Year2 property. The second one is to change the text on tbYr2RevCh to adjust the revenue for the percentage increase in the rate. The problem I have is that I cannot access the object that is the source for the data and make those changes directly in the object, instead of having to update the database. I don't want to update the database until the client says so, but the changes should be calculated immediately. I thought about creating an method in the object that I could specify in the ObjectDataSource as the update method, but I'm still not sure how to go about it.
View 6 Replies
Aug 5, 2010
I am trying to add a new entity and have to refernce associated data to add it. I cannot load the Referencetables. Giving "The EntityReference could not be loaded because it is not attached to an ObjectContext." How do i complete this task in Entity Framework 3.5
[Code]....
View 1 Replies
Jan 3, 2010
I have a detailsVeiw bounded with the sqldatasource.I want to restirct user to update all data in text boxes.
Or in words if user click Edit then it is required to show some text boxes to update and other should be read only.
How to do this task in asp.net.
View 3 Replies
Jun 11, 2010
How can I update an existing LINQ entity? This code gives me: "Cannot insert an entity that already exists."
Any better practises on updating/inserting with linq?
foreach (ListViewItem lvi in lvStudents.Items)
{
HiddenField hfStudentID = lvi.FindControl("hfID") as HiddenField;
CheckBox cbPresent = lvi.FindControl("mycb") as CheckBox;
int sInt = Int32.Parse(hfStudentID.Value);
dc = new DataClassesSODataContext();//I renewed the dc to make sure that wasn't the problem?
var currStudent = dc.students.Single(x => x.studentID == sInt);
grade g = dc.grades.Single(x => x.subjectID == subjID || x.studentID == sInt);
if (g == null)
{
g = new grade();
g.subject = dc.subjects.Single(x => x.subjectID == subjID);
g.student = currStudent;
g.present = cbPresent.Checked;
dc.grades.InsertOnSubmit(g);
} else
{
g.present = cbPresent.Checked;
dc.grades.Attach(g, true);//I tried both attaching and inserting
}
}
dc.SubmitChanges();
View 1 Replies
Feb 24, 2013
I am using Entity Framework 4.0. I want To write a query for multiple row update.
Then how to write Query for multiple row update in Entity Framework.
View 1 Replies
May 7, 2015
I want to add recored and immediately after add get id value of that record.
View 1 Replies
Jan 24, 2016
Currently I was done to insert data thru upload excel file. May I know, how to UPDATE the existing data using iploading excel file.
View 1 Replies
Jan 11, 2010
I have an update button in a detailsview. based on certain criteria in the data that is being updated (blank field), I want to stop the update from happening. I tried putting the following code in my UpdateButton: 'check to see if the status is 'complete'
Dim statuscheckbox
As CheckBox =
TryCast(formulationDetailsView.FindControl("FormulationCompleteCheckBox"),
CheckBox)If statuscheckbox.Checked
Then
'check to see if color code has been entered
Dim colorcodetextbox
As TextBox =
TryCast(formulationDetailsView.FindControl("ColorCdTextBox"),
TextBox)If colorcodetextbox.Text =
""
Then
'show a message, the color code has not been entered
MessageBox2.Text = "Please enter Color Code prior to complete"
statuscheckbox.Checked = False
resetformwithoutediting()
End
how to stop this code from proceeding to the update?
View 5 Replies
Apr 29, 2010
I am trying to update a record using a details view. When the update button is pressed nothing happens, even if I check the db then the record is all the same. No error occurs but there is no update. I am using OLEDB connection with a db2 DB.
<asp:Panel ID="pnlLayerDetails" runat="server" Height="142px" Width="474px">
<asp1:UpdatePanel ID="updpnlLayerDetails" runat="server" UpdateMode="Conditional" >
<ContentTemplate>[code]....
View 9 Replies
Nov 19, 2010
How can I programmatically Update Details View. NOT through SQL DataSource or through Wizard. I want to Update the Details View from Code- Behind (.cs)
I have a Drop down list loaded with UserNames, Up on Selecting the UserNAME, I am loading the Details View with User Information.Now I want to Provide Update faeture programmtically.
View 9 Replies
Oct 31, 2010
I've got a DetailsView control with Edit and Update enabled. I'd like to write the edited record to an XML file after Editing. What's the best way to do this? I thought I could write to a text file and concatenate the db fields between XML tags but is there an "automatic" or best practice way to do it?
View 2 Replies
