Dropdownlist In Asp.net Changes The Value After Post Back?
Nov 20, 2010
i have tow dropdownlists in formview when i select from the first dropdownlist i take the value and postback to the same page with this line response.redirect("addtabs.aspx?SECID="+dropdownlist1.selected value.tostring())and thi second dropdownlist take th SECID and fill it self with sqldatasource with this parameter every thing okbut when post back the first dropdownlist doesn't select my choise but select the first item in it how can i make it still select my selection.
I have a fileupload control in a web page. I upload one file to the fileupload control. I am having the path like c://images/image.jpg. But if change dropdown value,then i am losing the value in the fileupload control. How to get back the value?
I have four textbox and a button in my page. After filling the textbox. When the user click save button. A loading image should be displayed. User should not feel that the page is postback to the server,Some thing like in facebook loading image.
Being new to ASP.NET I have run into trouble building my own Whack-a-mole program. I think my problem comes from using Buttons, which by themselves send post backs to the server, making the software unusable. The looks are in place, making new buttons show up in the grid, in different places by random. However, when a button is pushed - the score doesn't change (which I feel is strange).
Not so strange is that the Button doesn't work since it sends post back to the server - reloading the UpdatePanel. I think I should use a different controller like the CheckBox and style it hard using CSS (which isn't a problem). Is this the correct way to go, or should I make use of JavaScript AJAX instead?
Note to self: This technique shouldn't be used in a public application since it put too much unwanted pressure on the web server.
I populate two dropdownlist in asp.net. Both are assigned to a required field validator.
The codebehind is as below
[Code]....
the designer code is as below
[Code]....
Now what happens is, when i choose a field from the dropdown and once again when i choose the "-- Select--", the validator appears and then disappears.Where am I going wrong?Why doesnt the validator stay?RegardsHema
I searched google and found asynchronise post back trigger is used if we want update panel to post back on some event of control if it is out side the update panel. Than what is purpose of post back trigger ?
I have a very odd and disconcerning problem. Just recently a page where I have 1 textbox and a buttoon has ceased to work.
When I look at the post coming into the PageLoad, the pageType is "POST", but the Page.IsPostBack is false!! and the textbox (which had content) is empty.
I have stripped all AJAX script out, so I have a very vanilla page (in a master page) being served.
The pages is
[Code].... [Code]....
The page is "POST", but isPostback is false[Code]....
I have a textbox that is used for searching. upon clicking the ok button and posting back, the function is called, and gets matching results by using sql query in the aspx.cs file this information will be displayed in the div tag and set visible. initially div tag will not be visible. after the button posts back, then the div tag will be set visible.
I have a user registration form. Here I have link to another page (card info page) which has to be filled for the registration. User fills the few fields in the user registration form and click on the link that takes to card info page. When user clicks the link in card info page to navigate back to registration page, the previous details entered in registration got vanished. So I need to redirect from card info page to registration page without postback. How can i accomplish that?Response.Redirect() is used for redirection.
I am currently a beginner in asp.net i am currently watching msdn videos of "beginners developers learning" i am on the topic of application state so i got confused on a topic of "cross page postback" can anybody explain what that is
and another thing is "profile" object we use it in web.config file
I'm using a asp file upload control, however, when other controls trigger some post back actions, the file upload value return to null...any sample code i can follow please?
I am using Attributes.Add("style","color:green") with some checkboxlists and radiobuttonlists. When I click one of the checkboxes and I do the autopostback the attributes clear out. So I would think someone already has a sub to fix this. Something like:
SaveAttributes(checkboxlist1) or SaveAttributes() 'which would loop though all controls and save the state.
and then on pageload it would have
LoadAttributes(checkboxlist1) or LoadAttributes() 'which would loop through all controls and restore the state.
I have the following J query which is linked to a texbox - when the user selects the textbox a calendar control appears.After selecting a date I would like it to Auto post back.Currently when I select a date it does nothing.but i need to do a auto post back.is there anyway of doing this ??
I have a asp.net app that I want to disable the buttons as soon as they are clicked in order to prevent multiple submissions. I'd like to use jquery for this as the site already liberally uses it anyway.
I have a website installed on one of our sales guys laptops and am having issues with the website hanging if left for 2 minutes. This doesn't happen on my dev box, my live machine or the other sales guys machine.
The website will hang. It's not just limited to this page, it will happen on all pages when I leave it for more than 2 minutes and then try and process a page that calls back via button or drop down ect. I have checked the IIS settings of the machine and everything seems the same as the other sales guys machine who is running the same version of the site.
Here are the specs:
Dev Box: asp.net 2, windows server 2008 64bit
Live Box: asp.net 2, windows server 2008 64bit
Working Sales Guy: asp.net2 windows 7 64bit
Broken Sales Guy: asp.net 2 Windows vista 32 bit (the only thing I can see different is windows version)
EDIT: For more information, if I stop the website from trying to load while it hangs, clear my history for the last hour and then refresh, the page comes back fine.
EDIT2: I have just spat out some debug information and it seems it doesn't even go into the post back I need.
EDIT3: This doesn't seem to happen when using Chrome but does when using IE and Mozilla.
Disable a post back from asp.net i.e. buttons, links, gridview page index changing and sorting etc when a post back is already in progress. Target browser is IE 6+. I've written these 2 javascript I am not sure how to apply it on GridView Page Index changing.
[Code]....
But I am not sure how to attach the VerifySubmit to non prompting controls like gridview pager.
I have many file upload controls in my web page. In this page is a add button that create dynamic controls in table rows. Every table row has a file upload control. When this button clicks, post back occurs and all file upload controls content fly and user have to select all of them. What should I do for keep FileUpload content after post back?
I Had two webforms. source.aspx & Target.aspxSuorce.aspx has 2 textboxes for input data and two submit buttons. am using cross page technique to transfer data from one webform to other.ource Page:On buton click event :
Server.Transfer("TargetHome.aspx"); = null) { TextBox TextBox1 = PreviousPage.FindControl("TextBox1") as TextBox; if (TextBox1 != null) [code]...
