Forms Data Controls :: A Second Row Is Entered Into The Database Whenever Refresh Is Clicked?
Mar 30, 2010
I am learning how to use repeater and datagrid. I've been able to update a datagrid successfully. I have two text box, which take an item description and quantity, save them in a database, and display them back in a datagrid whenever the user access the page again. If the user were to enter a value, let say description ='coffee' and quantity= '15', it would save them in the database properly. However, if the user refreshed the page, a second row with the same value ('coffee', '15') is added to the database again. How can I avoid this from happening?
I'm a rookie at all this and need some insight from veterans.
I'm working on a web form that submits data to a database. I'm using C# as my code behind language and am using LINQ to SQL with a LINQ data source. I'm working in the code-behind page to format/concatenate the user's data before going into the database.
Everything looks like it's formatted and aligned correctly. I am not receiving any errors or warnings, but on submission none of my data gets entered into the database.
My question is... how should I troubleshoot or go about finding out what's keeping my data from being entered into the db.
I have an admin page in which I need to change the list whenever a user signs up on our web site.How can I put and event to MySql database so that whenever the count of a table row changes it refreshes my update panel for me to see the new user.
I have a simple sign up form, user fill that form and press submit and then he refresh the page, the form re submit again and data enter in database twice. How to prevent?
I am having one friend request form.In that,I have used grid view control to show all registered members,So one who want to send request he/she can send request.My form design code is:
I have a problem when I try to pass in paramaters for a report in my report viewer. I have set up the ObjectDataSource and set the paramaters for 3 text boxes that are on the page. The only way I have found to set the paramaters for the report is the user must fill in the paramaters and hit the refresh button on the Report Viewer toolbar ,but I would like to have the user click a asp.net button insted. Is there anyway to call the refresh method from codebehind?
How to automatically refresh a page after some time interval?
In my website, I want to automatically refresh the page data(from database) after some time interval. I dont want to use any button click event to update the page data.
How do you get dropdown lists to refresh after a submit button has been clicked and the radgrid has been populated? Basically I have built a search tool which allows users to select the items from a dropdown list, click a button their results are displayed in a grid. However, currently it won't allow users to carry out a second search. It it a rebinding issue?
I have a button that has click event in my C#. This works great. However afetr pressing F5 to refresh the page I noticed the button event is fired. This occurs every time I click F5. I've added if(page.IsPostBack) and the method still runs.
Is there any way to stop method from firing when the F5 Refresh button is clicked?
i used a linkbutton inside repeater,when it is clicked whole page is refresh .linkbutton name is comment.i want when link button is clicked ,text box (txt comment) should be visible,without refreshing the entire page
I've got a text box on my page called txtNotes - multiline textbox.
When I add the text into the sql server database, the line feeds are not getting entered.
I have a function that replaces the line feeds with "<br>" and it's still all in one line. Also I don't see the normal square type entity after each line in the database, that is normally there for a line feed.
However, when I copy from the database and paste it to Notepad, it is formatted correctly
In the registration page of my project i want to check whether the enterd userid is available in database or not without sendig the whole page to server and i made userid as a primery key.
I have an app that uses masterpages. On the masterPages I have a TreeView. I would like to only refresh the ContentPlaceHolder & not the Entire masterPage when a link is clicked on the treeView.
I have placed the contentplaceholder in an Updatepanel. I would like to if possible avoid including the menu in the update panel.
I have a user control and inside that user control I have a image button on whose click I am opening a modalpopup extender(which is another user control) I am populating all the values in drop down list and getting all the information i need on the form. The user and go and save the information required on that web form and clicking on cancel would exit the form which would bring the user back to the main user control.
The problems faced:
1.Problem 1: Not refreshing On clicking on tree view one of the nodes I am calling the reload function of parent user control as well as the user control present as popupextender. This click would refresh and fill in the values from the database for user to view and edit. Now when the user clicks on the image button another user control opens up where he can edit the entire values of the form and move back and forth in the records I have put update panels for every block and for the buttons. He can save the information. But when he exits and form and reopens it after a while the values of the form are retained the values which are not saved to the database but the ones which were selected so it is retaining them and not refreshing. How can I force the refresh everytime the button is clicked for modalpopup extender user control.
2. Problem 2 enable/disable buttons I am not able to enable and disable the buttons inside the extender the buttons are in the update panel as well as for the different sections of the form.
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I have a insert stored procedure that checks if that same number exist, it won't enter one, if not it will. ID of that table is autoincrement.
If a new number entered, it should show in the gridview as in my query I am asking to show the max ID. The applicatin number in the grid is a hyperlink which allows the user to go to a details page.
My problem: Whenever I click the save button in the formview, the grid becomes visible with the last created number. It is ok if the system allow to enter a new record. But if the number is a duplicate and the system does not enter a new number, still the grid shows with the last created number.
How can I implement what I want to do.
The stored procedure is:
ALTER PROCEDURE [dbo].[InsertNewChurchApp]nvarchar(6), @AddBy @Applicant nvarchar(80), @PK_ApplNo nvarchar(19),
i need to retrieve the value entered in the textbox of each row and its corresponding Billno in the cs page i use a button and i retrieve the data in the button click event method. i have used several options like "foreach (GridViewRow row in grdcstomers.Rows)" and storing the gridview values in an array list but i am unable to retrieve the cell values or the textbox values.
we have a sql server 2005...that has 70-80 databases and hundreds of tables....
It is supposed to refresh every night.... refresh is done by other vendor(3rd party).... we dont know what method(technology) they use to refresh the databases....
My question is .....
Is there a good way to know when the last refresh has happend...can we determine it from sys tables.....
the sql server is installed in window server 2003 box.... we have access to the box as well as the sql server.....
