C# - Change Hidden Input With OnFocus Between UserControls?
Feb 15, 2011
This is probably embarrassingly easy, but I've having problems getting this to work.
On ResidentAddress.aspx, I have 2 user controls (AppName.ascx and NavButtons.ascx). When a textbox in AppName.ascx has focus, I want to update a hidden input field on NavButtons.ascx with the value of "TRUE". In the codebehind page for NavButtons, I want to see what the value of this hidden input filed is.
This is what I have so far:
NavButtons.ascx
<input type="hidden" id="IpChangeFlag" name="ChangeFlag" runat="server" value="FALSE" />
AppName.ascx
<asp:TextBox ID="txtFirstName" runat="server" onFocus="document.getElementsByName('ChangeFlag').value='TRUE';">
NavButtons.ascx.vb
If IpChangeMade.Value.Trim.ToUpper = "TRUE" Then
MyValue = true
End If
I am unable to change the value of ipChangeFlad. It always has the value of FALSE.
this hidden input is used by a star rating control. the user gives a star rating of 1 to 10 by clicking on the stars and some javascript detects which star was clicked and fills the input with the corresponding number.
I want to use a RequiredFieldValidator to ensure that the client has selected a star and if not return an error message to my validation summary.but the validator seems to be throwing an exception. How do I do this?
I'm working with jquery.ajax() I'm getting a object and I use jTemplate to write the html. My problem is now that I need to place the id of the object in a input hidden. I have no idea how I should do this. I tried to do a <script> in the template.htm with jquery to place the id in hidden but with no luck.
And the top of the Download.aspx code behind looks like this
Code: Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim ctx As HttpContext = HttpContext.Current Dim response As HttpResponse = ctx.Response Dim sFile As String = "mit-license.txt" ' Request.QueryString("filename").ToString
[Code] ....
I could not find the INPUT value - where does it pass in? I checked the "sender" and the ctx objects and could not find it... I hardwired the mit-license.txt filename to prove that the download works...
I have been trying to set the value of a hidden input by using Javascript and then access the value from within my C# codebehind. When I run the code that is copied below, the value that is assigned to assignedIDs is "", which I assume is the default value for a hidden input. If I manually set the value in the html tag, then assignedIDs is set to that value.
This behavior suggests to me that the value of the input is being reset (re-rendered?) between the onClientClick and onClick events firing.
I have an ASP.NET application designed for a Windows CE device that needs to take in information from a scanned barcode. The device sends the scanned data as string input with a crlf to whatever field has focus. I set up my page with a textbox that takes the input and posts back to look up the item.
Now, I'd like that box to not be visible to the user, but IE complains when I set focus to it if the field is "visibility: hidden" or "display: none". I've tried moving it off screen using absolute coordinates, but setting the focus scrolls the window to the new location.
I'm using V.S. 2008 and asp.net MVC. I have a form in this page that user selects various items from Select controls. I then construct a string varible that contains each selected element's id a hidden input control that holds this information. How can I pass this variable (and it value of course) to a Controller Action? I am using regular Html Form and the Submit button.
In the following code you see the "ResearchInterests" is the one that holds the string but I can't even reference it in my Controller action, Search. How can I correct this?
I want to create input inside gridview, the id of the input is set by me. I do want to use HiddenField control because when generating the id of the control, it will set id to gridview_ctrl.....
The input looks like this: <input id="myid01" value="myvalue" type="hidden">. Note that id is generate by me in the code behind.
I want to integrate paypal inside my shopping cart. For that it requires a html form to be embeded inside .aspx page with the action to paypal and method is post. Inside that form there are some hidden input filed. I want to assign one of those hidden field's value from server side code so i need to access that filed from server side. But how? Here is my form:
I have static html paypal buynow button that works great, but it's static.
[Code]....
But it is possible to change the values for the hidden inputs from .net codebehind code? I found this post which takes a different approach of sending these hidden fields instead as a query string to paypal. Not sure I like that though as would this not possiby explose some of those fields like the return page?
Basically what id like to do change the important parts of the button and info I'm sending to make it dynamic.I know I can do something like this in the markup, but that would mean having to fetch data mulitple times was hoping I could somehow adderss the field values directly in the codebehind. Or possibly dynaically generate and insert the entire changing input type fields from the codebehind
Possible to add them with something like this: myform.Attirbutes.Add (???). If so how do I contruct these input types in .net?As far as return logic security, I've tested that it's solid, i just need to automate the button process so I don't have to create a buy now page and button for each product.
i am using <input type="hidden" id="hiddenValue" name="hiddenValue" runat="server">
hidden control in my asp.net, and setting it value when page load, and when i clicked on a button then my server side code change hidden control value, and when i tried to access it value after another clicking of button then it showing me
first time value,
so why hidden control does not reset its value, how can i reset the hidden control value?
My Code
Page_Load(){ if(!Page.IspostBack){ hiddenValue.Value ="ABC"; } } ButtoClick1(){ hiddenValue.Value ="BAD"; } ButtoClick2(){ // it give me 'ABC' value, instead of 'BAD' string s = hiddenValue.Value; }
I am calling a method with __doPostBack using the OnFocus event for the controls. However I need to update the values multiple controls when the server method executes. This actually causes on focus to keep firing. Looking for help. I tried using TextBox1.Attributes.Remove("onfocus") and then adding it the javascript after processing but it still keep looping. Here is a sample using to textbox's for simplicity:
I'm using the technique described on this link to make all TextBoxes on the site highlighted when focused. Basically, in the Page_Load event of the MasterPage I set the onFocus and onBlur attributes for every TextBox found on the current page:
[Code]....
Everything worked fine until I decided to add the UpdatePanel on one page which is used for frequent data entry. Now, when the page loads initially everything is ok, but after the first asynchronus postback is made, controls inside the UpdatePanel seem to loose their onBlur and onFocus efects (controls outside the UpdatePanel are still working fine). I'm not in the best "relations" with AJAX and javascript :)
I have a matadataclass which I use to show my table individually. No I have the problem that I want to have a kind of input format for my date field like: yyyy/MM/dd and not the german format I'm using on my SQL Server. I already learned from the video that I have to change the display format to show it on my main page. I want to see the two " / " as akind of mask. Sorry for my bad english.
[DisplayFormat(DataFormatString="{0:yyyy-MM-dd}")] [DisplayName("Delivery Date:")] public object deliveryDate { get; set; }
Maybe I need a kind of "input validation"? I need the same for my IP field. I have a IP field to add the IP address of a system into my inventory database there I want to have the 3 dots xxx. xxx . xxx . xxx and the range per tree letters from 0-255.
[ColumnOrder(190)] [DisplayName("Production IP Address:")] public object IP1 { get; set; }
I'm trying change an input mask for textbox when the the check box has been check or unckecked but the problem that always is picking up the else condation only even the check box it is check or not.
Is it possible to change or remove http request form inputs in an httpmodule? My goal is to create a security IHttpmodule that will check the request for reasonable values, such as limits on acceptable input and query parameter length, or use the AntiXSS Sanitizer to remove threats, log potential hack attempts, etc. before a request is passed on to a processor.
Because this is a cross cutting concern I'd prefer to find a solution that applies to all requests and affects all ways request values could be accessed, Reqest.Form, Action(model), Action(FormCollection), HttpContext.Current.Request.Form, etc. I'm using MVC and have considered creating custom model binders to clean the data before creating the model instance. But that would be application specific, require remembering to register every model binder and only apply to Action(model).