ADO.NET :: Cannot Add Or Change A Record Because A Related Record Is Required In Table "Member"
Nov 19, 2010
I am using Table Adapter to insert records into my database. I first insert my member record into the database and it has no errors, after that i insert the contact records into the table. however I got the following error: You cannot add or change a record because a related record is required in table 'Member'.
I am counting from a table for that i have written code as below
protected void get_Id_Afterpoint() { int counter = 0; string strSql = "select count(*) as ID from tblEnergy where ID=?"; OdbcCommand com = new OdbcCommand(strSql, con); com.Parameters.AddWithValue("ID", DropDownList1.SelectedValue); OdbcDataAdapter oda = new OdbcDataAdapter(com); DataTable dt = new DataTable(); oda.Fill(dt); if (dt.Rows.Count == 0) { lblID2.Text = "1"; } else { counter = dt.Rows.Count; counter = counter + 1; lblID2.Text = Convert.ToString(counter); } }
there is no record related to DropDownList1.SelectedValue. but as i am counting if(dt.rows.count) and i put break point on the bolded part it shows 1 record. how it can be possible?
I've created a membership system based on asp.net 2. There are other tables that store user information, such as emails sent etc. I've created a users table based on the TableProfileProvider. My question is concerning deleting the member
Is it OK to delete the member from the aspnet_membership table and roles related tables using Membership.DeleteUser, though keep all the custom tables and the information including the information in the Users table created by the TableProfileProvider? or can you foresee problems?
I am using a datapager inside a nested Listview succesfully. When only one record of data is available the next previous last and first buttons are faded as per normal. However I would like them to not appear at all.The aspx code I have is:
<asp:ListView ID="Pictures" runat="server" DataSourceID="SqlDataSource2" > <EmptyDataTemplate> <span>No data was returned.</span>
I am using paging to my gridview (pagesize=4) . now i am in (X) page and i want to get (X+1) page top record or (X-1)page bottom record , how i can get .
I have a delete button bellow my gridview and I want a pop up to show when no record is selected and tell the user to first select a record. The button click event would show the pop up, but my gridview data blanks out.
I'm very new on VWD, but I got the hang of it for the past 2 weeks(thank you for all the videos posted here in ASP.NET),but I'm really weak on the coding part(vb & c#),except for all the sample shown on the tutorials. Anyways, I have a simple project that does insert, update & delete to SQL express using the details view. But to complete my project, I need to add a button that will create an event to restore the very last record inserted in SQL and display it back into the details view for minor modification and nserted again as the newest record with the mod. I'm doing this so user, doesn't need to re-key-in redundant information, like names, original date & time etc, and just make modification on the description of the last record.....
I want users to select a record in the GridView and then have that record open up in the Detailsview. How would I go about getting these two tools to communicate?
i have design a web application having suppliers table using SqlDatasource..
i have a master page in my design and other form are bound to a context menu..
Now i have displayed the records in the gridview..all i wanted is after i select a record in the gridview it will display the selected record in detailview from another aspx form..
i was able to create the link to another aspx form but the data that it display is the first data from the gridview not the data that i select.
I am creating an album using the following stored procedure, which returns the primary key for the newly created record:
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [dbo].[fpa_sp_albums_update_insert] @album_id int, @album_name nvarchar (50), @album_descr nvarchar(250), @album_img_cover_id_FK int, @album_creation_date date AS If @album_id > 0 UPDATE [fpa_albums] SET album_name=@album_name, album_descr= @album_descr, album_img_cover_id_FK = @album_img_cover_id_FK, album_creation_date = @album_creation_date Where ((album_id = @album_id)) Else INSERT INTO [fpa_albums] ( album_name, album_descr, album_img_cover_id_FK, album_creation_date) VALUES ( @album_name, @album_descr, @album_img_cover_id_FK, @album_creation_date) Return SCOPE_IDENTITY();
I execute the above stored procedure using the SQLHELPER. The VB.NET code for the page is as follows:
[Code]....
However, the createdAlbumID always shows -1 instead of the id for the newly created album.
I'm using a details view and a sqldatasource control to populate it. Every once in a while i get an error message because more than one row is returned. How can I have the data display in a gridview instead if more than one row is returned?
I have the following code, for testing im just writing the list to the page, but noticed that its missing the first record from the results. When i execute the procedures on the database, they return the correct values, so i know that part is working, the next part is for records that should be returning 1 record, the arraylist is empty, even though it should return1 record. What am i doing wrong with the code below? ( gratssec is a class that contains the procedures we are using.
I have a website where i already have User / Roles mechanism. What i am after is the if user update certain record i will include his username against that record thats easy enough. But if that row have multiple coulmns i want to save which coulmn he/she updated?How can i compare old and new data have save this information?
No records where inserted in my SQL Table after committing the transaction or after the .Flush() method. I checked the code and it follows the correct sequence of codes. I can't seem to find any other way where the error fails.
Is it possible to use LINQ to delete a row in a table within an SQL database? I am using an ADO connected command statement to delete a row where a string column equals a name. But, I would prefer to use an easier way with LINQ, if possible.
I'm trying to figure out how to write this in LINQ.
Lets say I have a table of book reviews. Each book has a rating of 1 to 5. At the moment I am getting all book reviews by a bookID. I want to then say "Get the score that occurs most frequently for those given reviews". So if Book1 has reviews of 1, 1, 2, and 4, the statement would return 1. If Book1 has reviews of 1, 2, 2, 4, it would return 2.
I've been playing around with MVC lately, and was wondering how you could do this:
I have a view that displays a list of products, and against each product is a list of categories (in a combobox). I'm trying to find out how you can update a product's category when you select a category in the list. I know you could do something fairly simple with jQuery, but I'm trying to understand how submitting forms works with MVC.
Here's what I currently have:
[Code]....
But I'm not sure how to tell the controller what product needs to be updated when the form is submitted.
I have written code for displaying an alert when a record has been successfully inserted.....but it is not displaying the messagebox...i dont know what is the error