Web Forms :: Create Warning Message To Avoid The Update Statement In Gridview
Sep 1, 2010
I have a table named [vacation time] with the colums startdate and enddate the table is conected with the [permits table]with the colums permname and permdays(int). i have to create a warning message for the user if the ((startdate)-(enddate)>permday) to avoid the update statement in my grid view.
I have read about Ajax Control Toolkit that should solve pop-up window requirements, but I need a solution that doesn't involve me downloading this. I have an editable FormView from where I want to pop a "warning window" whenever the user clicks a button that closes the Form. This "warning window" should have the following controls:
Label: "Do you want to save changes?" btnPopSave: "Yes" >> triggers databinding of FormView fields to datasource, then closes warning window and the FormView btnPopClose: "No" >> closes warning window, and FormView without databinding
If this is not possible (or too complicated), I think I can settle for just a warning window with:
Label: "Make sure you've saved changes." and no other controls
btnPopClose: "OK" >> closes warning window, and FormView
I'm quite new to asp.net. I use MS Visual Studio 2008 and MySQL database. When I try to edit a record via gridview and the generated UPDATE syntax I get an error.I inserted a gridview into my asp.net web application and connected it to my database (all is OK). Then I checked for auto generation of update and other syntax:
When I test in a browser I get a pop window form for editing a record. But when I click "update" I get the following error:"You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '?, strSkrajsanNaziv = ?, strKraj = ?, strDavcnaSt = ?, SkupinaID = ? WHERE Stran' at line 1"what's wrong with the UPDATE syntax? Is this syntax only valid when using MSSQL?
I'm creating an ASP.NET application which uses Facebook Connect and fbml tags. It also uses the LinkedIn widget. When I run this app in any browser, there are no warnings and everything works. However, in IE, a message like this comes up:
Security Warning: The current webpage is trying to open a site in your Trusted sites list. Do you want to allow this?
Current site:http://www.facebook.com Trusted site:http://localhost
(same for LinkedIn.com). I know how to fix this from a client perspective and to stop the security warning showing up. However, is it possible to ensure this message doesn't come up as it could be off putting for users who don't know how to suppress this warning? I haven't tried uploading it to my webhost, so not sure if this message will appear for everyone in production. However, I always get it on my local machine.
(None of my pages use SSL, so I don't think that's the issue. I tried using FB's HTTPS urls but that didn't make a difference).
I have an application whereby a user browses to an Ajax enabled page, sets up some filters, and then clicks on download report. When the user clicks on this button, they are redirected to a Download.aspx page, which builds up the report and appends it to the response as binary (the file may either be zip/pdf or excel). The issue I am having is that everytime the user goes to the page and hits the download button the warning message from IE pops up "To help protect your security internet explorer has blocked this site from download files to your computer". This is not a huge issue, but the problem is that when the user clicks this warning to accept the file, it reloads the page, and all my filters are lost, so the user has to set up all the filters to filter out the data they dont want and then re-download the file.
The interesting thing is that I thought I could track the filters using session variables, so that when the page reloads after accepting the warning message it could be restored, but IE for some reason is not loading the page in the way it should, and so the Page_Load method is never fired when IE reloads it after the user accepting the warning, so I cannot restore the filter settings on the page because I have no event to do it from!
I have searched and searched for a solution.. I have tried changing the mime headers - I am using content-disposition tag set to "attachment; filename=report.zip", I have tried changing the mime type descriptions to different things to see if I can avoid the warning but to no avail. I have tried using an iframe but couldnt quite get it to do what I want it to do, the page was still being refreshed..
I was wondering if there is any way to view an sql statement that is created by a templateField Gridview when updating? I had my Gridview working properly then I changed my update statement to update less fields and I changed a couple more things on the page and now I don't know what broke it. The error I'm getting is
"System.Data.OleDb.OleDbException: Syntax error in UPDATE statement."
When I searched for this error it said to debug it but all that happens when I do that is visual studio tells me there were errors because it couldn't find my header, which it does find when it runs regularly so this isn't the problem.
I think the popup message is a poor idea because OnClientUploadError has already provided developers a good option to handle the error easily in whichever way they prefer. The worst is that if a user clicks OK, he will see a window that should be seen only by software developers. Is there any trick to stop the error alert?
I receive the error message below, I think because the database field in question is null (I realize I probably should not allow null values, but I can't even display the page to allow the user to enter a value---and I would prefer not to enter a default value in SQL).
How do I avoid this error message? If the column is null (and it is supposed to be an integer), do I need to change the value to something like "0" in the code behind---or is there any easier way to do this right in aspx page (see source of error message below)? Either way, I'm not sure how to do either (I can't get any such lines of code to work here). Object cannot be cast from DBNull to other types.
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: System.InvalidCastException: Object cannot be cast from DBNull to other types.
In my web application, I have a search form. I add information in the boxes provided / select values from ddls and then click the Search button. The search results are loaded on the same page. Now I change the search criteria and click the Search button again. This reloads the same page with new set of results. Now if I click browser back button, I get "Webpage has expired" message. The complete message is as following:
Webpage has expired Most likely cause:
The local copy of this webpage is out of date, and the website requires that you download it again. What you can try: Click on the Refresh button on the toolbar to reload the page. After refreshing, you might need to navigate to the specific webpage again, or re-enter information.
If I click browser back again then page loads resetting the search criteria. Is there any way to avoid this "Webpage expired" message? I am okay even if the page reloads by resetting the search criteria.
I have a function that checks for a username and if it finds the username it will allow the user to update the user, there are 3 main columns: Name,Age,isFemale. I have the enduser supply the information and then I try to update the record but I get a sql error for "not a valid" column.console app:
I pass the spIsFemale by using an enum, here is the Person Class with function. [Code]....
I get an error that column isFemale is not valid. The isFemale column is a bit type. If it's a 1, it's a female, if 0 male. this is more of a test area and I'm trying to update records or create new one's if the name does not exist.II am new to C # and I am just trying to learn new ideas and methods within C sharp.
i am using create user wizard and capturing other information within content template when a new userregisters. Some of the textboxes are binded to required field validators.there is a validation control on the page and ShowMessage box is True.If they dont complete some of the text boxes then the message box pops Up with the error message.It does not however include information errors like "User already exists" or Email address already existsfrom the create user wizard membership UserName and Password Textboxesis it possilbe to hook all of these up so I get one message box with all errors including membership ones?
I have a simple table. (with PK). I have created a tableadapter that selects all fields and filters with a control parameter. This works fine. The results are displayed within a DetailView control. All okay up to this point. I have then enabled 'Editing'.I can then click on the edit and change the text, but when I click the edit button the page updates but the value has not changed in the database?
I created ajax tab dynamicaly.it works well except one thing .every time i clicked on menuitem a new tab created and if I clicked on that menuitem again the tab created again.I dont want to create one tab repeatedly I just want to create each tab just once and if I click on repeated menuitem the existed tab just be active.
I use AJAX tab panel for my web site (ver.1.0.2) with VS2005. Previously I use large page and now i it change to tab panel. The problem is when I change the source view to design view it automatically update the content of tab panel and show the 'error creating control' and sometimes it not. So I'm having difficulty on designing that page because always I have to keep the backup of the page.
i have a grid form with 3 fields field1 & field2 & field3.
(//// Or simply what i want is to do the same calcultions onthe fields while perfoming an update operation.. //).
how can i perfom the calculations in a grid view update statament ..