In my page, I need to enable a text box when user click on check box(checked). I have used javascript for this. It works fine but when there is postback for the page, the textbox becomes disabled again although the check box is checked. But the value in textbox still appears. Is there any method to retain the enabled state for text box on postback other than using hidden values?
View 4 RepliesIn a aspx page I am displaying records in the datagrid control. I have added one more column to the datagrid in my aspx page and this column is the template column which contains the checkbox control for each of the records. Then I have two buttons a) Display and b) submit
When i click Display button I get all the records in the datagrid from the database(about 700 rows). Then when I click the checkbox for a few rows and click the Submit button then it redirects to another aspx page (i have given response.redirect) . But sometimes when i click a few rows and then click the submit button the screen goes completely blank and it even does not redirect to the next page as specified(in the browser URL the initial page name is only shown).
I have a website for a simple game. When people sign in their Player ID is stored in a Session variable. I have integrated SMS payments so that my players can buy credits to use to play. This is where the problems start:
To buy credits, players are presented with an .aspx page that holds an IFRAME of the SMS payment proviers form. A code is entered, and the IFRAME POSTS to a URL on the providers server. It is then redirected back to an URL on my server(www.XXX.com/process.aspx), where I handle the results (i.e adds credits to th players account if the payment was successfull).
However, the session dies on return.
I tried with cookies, and saves the player ID in a cookie, but when upon return to www.XXX.com/process.aspx I cannot read the cookie? I'm checking for if (cookie == null) and it evaluates to TRUE, so the player is redirected to an error page.
How come the cookie cant be read? Is it because the POST is coming from an outside URL? And, what about when I do it with a session variable? Same thing there?
There is button(btnOpen) and a textbox (txtResult) in the page.
Once I clicked on btnOpen, a modal dialog will appear, displaying TextBox1 and Button1.
The user is required to type something in TextBox1 and I want to pass the TextBox1.Text into my database but when I try to do that, the value actually = "", which is gone.
So I created this test program to illustrate by passing the value into a txtResult.
Can anyone guide me on getting the TextBox1.Text value?
Besides that, is there anyone to tell more about what does this lines of code do?
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The aspx code:
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the Code Behind .cs :
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I have a form that takes the user information. When the user submits the form, after the postback, I need to get all some of the textboxes in the form cleared. I tried disabling the ViewState and ViewStateMode. But both of them failed. Also tried disabling the cacheability for the page. I know I can clear the textboxes on the page load event. But I am curious to know if there is another way to do this.
View 7 RepliesI've inherited a project and in effort to beautify it, I'm replacing an image based menu bar with a CSS based bar. When you click on a button it takes you to the appropriate page.
Currently in the OnInit() it checks what page you're on and then changes the URL of the image for the appropriate button to be the "active" image for that button:
btnFacilities.ImageUrl = "menu_front_facilities.gif";
Pretty simple, and works fine, but it's a pain to add new items, because I need to create a new image and if I want to change the look, I have to create a whole new slew of buttons.
I have built out the CSS menu using basic UL and LI and all the hovers and links work fine. My issue comes when I want to set the "active" item. The way the CSS works is by either setting the CLASS of the active item to "active" or I could easily change it to set the ID of the item to "active", but in either case the viewstate crashes on any posts because the object is not the same as it was when the page loaded, since the style is updated when the OnInit(); event goes off.
I've tried both setting the class name:
menuFacilities.Attributes.Add("class", "active");
as well as directly applying the CSS style:
menuFacilities.Style.Add("background", "#1376c9 url('images/topnav_active.gif') repeat-x;");
Both work fine on the initial page load, but once I click anything that posts, it crashes with a viewstate failure.
If I set the enableviewstate="false" then it works fine between different page loads, but not if I post to the same page (ie submit a search form)
I can't figure out how to handle the "active" object. For some reason the image URL works for asp:Imagebuttons
Here's what one of the items in the menu looks like (pretty simple stuff here):
<li id="menuFacilities" runat="server" ><a href="#">Facilities</a>
<span id="submenuFacilities" runat="server" enableviewstate="false">
using ASP.NET 2.0 VB.NET how to detect if the session cookies are enabled?
I know how to detect the cookies in general but you can set IE to block the cookies and accept the session cookies...How to detect this?
I've searched high and low for some resolution to this problem. Hopefully someone here can explain!!I create a usercontrol that uses .NET web controls, but I want to create a smoother user experience by avoiding full postbacks, so I write some JQUERY to capture click events on the client and in this way do the processing without going back to the server.
$("#tblLedgerEntries :checkbox").click(function () {
var value1 = $(this).closest("tr").find("td.invoiceAmount").html();
var value2 = $('#<%=hdnTotalToPay.ClientID%>').html();
CalculateTotalPayable(value1, value2, $(this).attr("checked"));
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So far, I've seen (and I'm using the following) scripts to show/hide a div or other controls depending on another control in ASP.NET
$('[id$=myRadio_0]').click(function() { $('[id$=myDiv]').show(); });
$('[id$=myRadio_1]').click(function() { $('[id$=myDiv]').hide(); });
and of course, my div in html like
<div id="myDiv" runat="server" visible="false">
and that works fine when the user selects either option of the radiobuttonlist. However, when I assign that radiobuttonlist a value of 1 or yes on my Page_Load on code behind, that isn't (and probably can't be) caught by jQuery, and my div remains invisible even though the control has a value of Yes/1. So, do I need to set the visibility of that div from code behind, or is there a way in jQuery to force a scan of these dependencies after i've set the values for the main controls in code behind?
I have the following tabs. After a postback, the tabs automatically gets focus back to 0. I want it to keep on the same tab before the postback. What's a great way of getting this done.
<div id="settingspagetab">
<ul>
<li><a href="javascript:void(0)" onclick="changeTab(0)">General</a></li>
<li><a href="javascript:void(0)" onclick="changeTab(1)">Site Layout</a></li>
<li><a href="javascript:void(0)" onclick="changeTab(2)">Marketing</a></li>
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A user logs in by inserting their user id and password.If they don't have an email address assigned to their login details they are asked to submit one before they can continue.They then continue to the home page in a logged in state.he trouble I'm having is that the user id and password are not retained when they submit their email address so the login fails.
Dim userid as String
Dim password as String
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)
end sub
[code]...
I have several dynamic user controls that I want to keep them in each postback. but the problem is when I click on menu item at first time, every thing disapeare in my page! even the things I created on design time. would somebody please help me to find out the problem of my code?it's realy urgent!!
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I am creating a simple string of values that get added to a label after a post back. I am setting the values thorugh ViewState. However, my appended values do not get updated until AFTER the 2nd postback. Example:
On Page_Load the label displays a "0";
If I enter a "1" in the text box and click the button the label still displays a "0";
If I click the button again (the 2nd postback) then my label correctly displays "0,1"; This works for whatever value I enter after. i.e. "0,1,35,hello world", etc.
What I am I missing? Code Below.
.ascx - I left out inherits and codebehind
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I have a slight delemma that I have not been able to work out.
My Scenario is:
Page_Loads > Calls Sub Random Data Retrieved from a Table - Displayed on screen & Sets Variables from Row(0) for an Insert Statement > Click Button to Insert those Variables.(essentially, the Insert Statement Parameters are Dynamic in that they change each time the page loads)
The Problem I am having, is that each time the page loads, I need a New DataSet, and the Page_Load is operating too quickly, changing my variables on postBack and ultimately, inserting the new values that are now loaded.
How can I:
Page_Loads > Get and Set the Variables I need > Protect Those Variables from changing on the Next Postback (so the insert statement gets the values Iwant to insert but also set and get the next ones)?
If Not Page.IsPostBack Doesnt Work for me in my Page_Load because each time the page.loads, I need those new Random Variables from a DataSet
Someone had Mentioned ViewState, but I am uncertain how to use it. I just want to protect the variables so that it inserts properly
I am in beginner level on developing web pages. I was coding on desktop applications and as you know it is easy to say that web applications are extremely different than desktop applications.
I wonder why data are lost between postbacks.???? And what is the best way not to lose the data belonging to a specific control (especially gridview). Session or viewstate or anything else?
Never had this happen before. I just upgraded my site from 3.5 to 4.0. Here's the scenario:
1.) I have a literal on a web form, in an UpdatePanel.
2.) On PostBack, the Literal's "Text" property loses it's value. The ViewState is enabled throughout the page. Further, I changed the Literal to a label and it also has this problem. The TextBox's appear to keep their values.
3.) If I remove all of the Ajax controls (which currently is just the UpdatePanel and the ScriptManager) then the Literal control keeps it's value through PostBacks.
4.) There is no client side JavaScript where I'm manually changing the values of these controls. They are only editted in the server side events.
I have read that setting the AutomaticDataBind property in the web.config could remedy this but I can't find any documentation on it and I don't know where to put it in the web.config to even try it.
I have a Gridview some columns is TextBox , the layout looks like this
{saveBUTTON}
Delete | No | NAME
Button , Binding Column , TextBox
Button , Binding Column , TextBox
User can modify Name column then click saveBUTTON to update data
I have a problem is
if user do this steps
1 modify the TextBox in GridView
2 delete row from Textbox without click the saveBUTTON before
then... all the textbox in GridView was be rebinding... all the data user input was missing..
how to keep data in Gridview ... so after user delete data I can rebinding to GridView?
My app has broken after upgrading to ASP.NET 2.0. The problem is that Request.QueryString is empty when the SelectedIndexChanged event of a IE Web Controls tab strip is fired. It worked perfectly in ASP.NET 1. I have the tab strip contained within my own UserControl.
View 3 RepliesI create a class with some atributes.In a web form, I declare a public object like this.Partial Class Intencion
View 7 Repliesi use html form and html control to submit data,like bellow:
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after submit,the input email lost it's data,how to keep it?
I ve been searching for this on various forums and came through a number of supposed solutions which didnt work for me.
My web form works perfectly for me when on development and after publishing on IIS but when I try to access remotely the session value is always null.
I do these things in the following order and when accessing remotely I always get the exception i throw when session is null.
I debugged it and my list is never null when reaching the assignment point.
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in webconfig I have the following tag which I saw as an answer in many forums
<sessionState mode="InProc" cookieless="true" timeout="200" />
I have "n" <tables></tables> on my page and each <table> has One(1) <asp:CheckBox.. Enable ='true"/> and "x" <asp:TextBox Enabled="false"..>. Each Table looks as follows
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When I click checkbox, it calls javascript function and enables textboxes (I have added onclick attribute to checkbox). Page also has <asp:Button ...Text="Submit"/> whcih actually grabs the data from the textboxes on the page and send it to the databse. Here is the Onclick event of the <asp"button../>
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If the exception is thrown , textBoxes are not reset but on postback textboxes appear as disabled (values are not reset)
So here is what happening on postback when exception is thrown
1) Values are not reset (that is what want)
2) Texboxes appear as Disabled (that is what I don't want on exception, REMEMBER I enable textBoxes using client side script)
How can I keep the textboxes enabled = "true"
I have a linkbutton that displays a different record each time the page is loaded. When I first bring the page up, I can hit F5 repeatedly and the linkbutton works properly rendering a diff record each time. But in a dropdown list, or any other control that causes a postback, the linkbutton remains static, why?
In my Page_load I have
AccessDataSource1.SelectCommand = "SELECT blah FROM table where trim(recid)=" &
"'" & rndVal &
"'"
AccessDataSource1.DataBind()
LinkButton1.Text = DetailsView1.Rows(0).Cells(1).Text
My dropdown controls do not keep the values after postback even though their EnableViewState is = true and in Page_Load I fill my controls ONLY if not postback.
My controls are inside a panel and the panel's EnableViewState is set to true as well...
To see the page you can log in as test and password is 12345
click on search page and set a value to say Gender and Ethnicity and click submit.
You will see the results, then navigate to number 2 or 3... You will see that it refreshes the controls and sets them to default.
I have a webform will perform a server.transfer to another webform. Upon postback on the second webform, i am not able to retrieve the previouspage data. is there anyway i can achieve this?
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