I am new to asp.net but familiar with asp. I have a page with the following code...
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I am using VS2010
When I try to updated or insert a record in my User table I am getting an error that does not make sense to me and I cannot figure out what is wrong.
Also, when I try to insert a new record I get a validation error saying that the Id is required. However it is an identity field in the db so it should not be necessary to send it to the server.
Could you please shed some light?
An error has occurred. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: Microsoft.Web.UI.WebControls.EntityOperationException: An error has occurred.
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
[EntityOperationException: An error has occurred.] Microsoft.Web.UI.WebControls.DomainDataSourceView.PerformCudOperation(ChangeSetEntry operation, Action`1 operationPerformingEvent, Action`1 operationPerformedEvent) +331 Microsoft.Web.UI.WebControls.DomainDataSourceView.UpdateObject(Object oldEntity, O
I am coding a .cs file that handles the metadata for a particular table. I am putting a custom validation that allows me to update or insert only if the PubMedID is not already in the database. This would be easy except that the PMID should also be allowed to be null as some of the references in the database were not from PubMed. So i perform a query on the database to see if there is already an identical PMID in the database. This works great when using Insert. However, when using Edit, it does not. The PMID is already in the database because the one currently being edited has the same PMID!!! So I know exactly how to change my query etc. However, I do not know how to tell from inside this Edit/Insert agnostic page, which one it is being called from. Thanks for your help!
I was wondering how to recieve an individual field from my MySQL database.
I have been able to get a row, but what I am trying to do is get a name from my database and set it into the HeaderText in my DataGrid.
The way I am trying to do it at the moment is
using (OdbcCommand cmd = new OdbcCommand(formQuery, con))
formDataGrid.Columns.HeaderText = cmd.ExecuteReader(
This doesn't seem to get a value from the GetValue, but if use
using (OdbcCommand cmd = new OdbcCommand(formQuery, con))
formDataGrid.DataSource = cmd.ExecuteReader(
it will bind my data into the grid.
I just want to be able to change the HeaderText in the first coulmn of the DataGrid from one table and have the DataGrid be filled from another table.
I can fill the DataGrid its just changing the HeaderText that I am having trouble with.
I have set up a mysql connection in visual studio 2010 and now i have a connection and dont really know where to go next.
I want to be able to search the data and get the result in a view.
using asp.net mvc
Hi. I am wondering if its possible to use LINQ and MySQL?
I am build as .NET MVC, i have set up my MySQL connection and want to retrive the data and display it in a view, how is this done?
Can i use LINQ or something else or should dont use it at all.
Hi dear coders
though a very simple question to ask, but please tell me how to save and retrieve data in/from my textboxes to/from database (MYSQL) on submit button click.
i know its a very simple task but i cant make it done, so i request you to please send me some working example link or post any helpful code here in asp.net
i will be highly thankful for any kind help from you geniuses.
i am developed on simple user registeration application in that i gave address field .when i am trying to enter something like this (1st main,b'lore) but wont take while inserting.
my query is
sqlcommand cmd=new sqlcommand("insert into registeration_form(name,address)values('"+txtname.text+"','"+txt_address+"')",con);
how can i pass the quotes also to my query please if any one know reply me.
I am trying to insert data to Excel Document using OLEDB as follows:-
sql = "Insert into [MyFirstSheet$] (" + Title1 + "," +Title2 + "," + Title3 + ")
values('" + Value1 + "','" + Value2 + "','" + Value2 + "')";
myCommand.CommandText = sql;
But, the Title1 ,Title2, Title3 are in the 3rd row of the Excel Document. So, the data is not inserted.
I added refernece MySql.Data to my project. My web.config looks like that:
<?xml version="1.0"?><configuration> <connectionStrings> </connectionStrings> <system.web> <compilation> <assemblies> <add assembly="MySql.Data, Version=22.214.171.124, Culture=neutral, PublicKeyToken=C5687FC88969C44D"/> </assemblies> </compilation></system.web></configuration>
But when in ServerExplorer I try "Add Connection..." I can't find "MySql Database" in the "Choose Data Source" dialog box?
What the problem can be?
Can someone help me on How to insert Image (jpeg) into MS Word Programmatically using VB.NET..not C#.NET???
I could hardly find any articles for the coding. Preferably using Bookmark...can i have the sample code.
I have built a site that I am using google maps on. The default page has a google map with info windows containing links and all works great... until a user clicks on the link in the info window. Doing so takes them to a community page that I have built. On this community page, I have an ajax update panel that has 2 panels nested inside of it with the visibility set for one to be on and the other off. The default panel shows community photos, and the second panel I want to show the google map and common directions to the community. In testing, my buttons to switch the visibility of the panels works great as it should without postback, but when I try to add the map to its panel, it does not show up. I am new to ajax as well as google maps and I'm not sure why the same code would work fine on my default page but not the community page. The only obvious thing I can assume is because the community page map is in an update panel.
How do you insert a google map into and ajax updatepanel and have it work correctly? Many thanks in advance.
In my mysql I have an autoincrement id , whenever I add a new row into database I need to store this id in other table, so how to get this autoincrement Id back?