im trying this format:
$("#<%= hfWidth.UniqueID %>").val($("#drag").attr("offsetWidth"));
to fill the hidden field with client-side values
but when I do postback, the values doesn't seem to be saved.
I have a custom user control which contains a asp hiddenfield object. The value of this hidden field is being set using javascript and I have verified that the value is being set properly. When a postback occurs the new value is not being saved and I cannot access it in my code.
I believe the problem is because the user control is not saved in viewstate and therefore the hidden field value is not saved accross postback. How can I make the hidden field save its value? I tried accessing it from the early page cycles and still no luck.
the thing is that I have a form with a textbox and a button and a hidden field, now what i want to do is to write something in the textbox ,pass it to the hidden field and then access that thing written in the hidden field in the controller . how can i do that?
View 3 RepliesI'm trying to use jQuery to disable an ASP.Net button control and set the flag in a hidden input field. However, the value does not seem to be staying, for some reason. I am new to jQuery, so I'm having a hard time trouble-shooting this:
[Code]....
I am saving "Instruction" in CreateInstruction view. This view has partial view "CreateInstnAttribute" which saves "Attributes" related to this Instruction. It requires the InstnID as foreign key. The Instruction is saved using JQuery to avoid postback. So how can I get the InstnID to save the InstnAttribute? I tried HiddenField to save InstnId but I am not able to receive the value there. Can we use viewdata directly in JQuery?
View 3 RepliesI have a table for which I'd like to filter rows based on whether or not they contain a hidden field matching a value.
I understand that the technique tends to be "show all rows", "filter the set", "show/hide that filtered set"
I have the following jquery but I'm aweful with filter and my filtered set seems to always contain no elements.
my table is the usual
<table>
<tr><td>header></td><td> </tr>
<tr>
<td>a visible cell</td><td><input type='hidden' id='big-asp.net-id' value='what-im-filtering-on' />
</td>
</tr>
</table>
My goal is to be able to match on tr who's descendent contains a hidden input containing either true or false.
this is how I've tried the selector (variations of this) and I'm not even testing for the value yet.
function OnFilterChanged(e){
//debugger;
var checkedVal = $("#filters input[type='radio']:checked").val();
var allRows = $("#match-grid-container .tabular-data tr");
if(checkedVal=="all"){......
I'm having a time finding out I could not do something simple as :
On the onchange event getting the new selected checkbox, this with jquery.
The checkboxes are located in the following div :
[Code]....
This all located in a form, when I will find out the selected radio on change I will post the form and use the value of the hidden field to know the selected radio button. Nothing really difficult.
The js code :
[Code]....
I have Gridview like this:
<asp:GridView ID="gvPartsSearchResult" runat ="server" CssClass="MRJ_TextGrid">
<Columns>
<asp:TemplateField HeaderText="Select">
<ItemTemplate>
<asp:RadioButton
ID="rdButton"
runat="server"
AutoPostBack ="true"
onclick="javascript:CheckOtherIsCheckedByGVIDMore()"/>
<asp:HiddenField
ID="hdnFileExtension"
runat="server"
Value ='<%#Bind("FILE_EXTENSION")%>'/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
I want to read the hidden field value when the user clicks on the radio button.
I have a Details view containing a 2 fields. A Name and a phone number.The Name field is a template with a dropdown list that's popuplated from a database table of Names and Phone numbers. The dropdownlist shows the names. When the user selects a name I want to put the phone number into the second field in the Detailsview.
View 1 RepliesWhat is the difference when using ::
Hidden field vs View state??
when to use each one ??
which one more secure?? and which is better than in performance?
what are the alternatives?
how am I be able to assign a value to my hidden field control? I have this web service that returns member's ID and name (e.g. 0001-John dela Vega). In order for me to search for a member, I'm using an autocomplete extender, now, if in case that I found the member I'd like to assign its member id to a hidden field. I ask this because I'd like to change the way my web service return data so instead of displaying the member's id and name at the same, I'll just show its member name.
View 1 Repliesi have a javascript function written like this
[code].....
Now this is working fine but , lets say i have 10 textboxes, if i change the value one the first textbox to be the same as the second textbox , it means it is a duplicate, now the problem here is that the value of the hidden field does not get updated immidiately , you have to click twice to get the real value.
wnat to set the HIDDEB FIELD VALUE THRU JS. But I am gettin the error,can anyboy help me out!
Code:
<input id="HiddenField1" type="hidden" value="" runat="server" />
Code:
var _textbox1= document.getElementById('<%= textbox1.ClientID %>');
document.getElementById('HiddenField1').value = _textbox1.value;
alert(document.getElementById('HiddenField1').value);
ERROR(IMAGE ATTACHED)
I have a hiddenfield, which I want to save the scroll position of asp.panel scrollbar during postback, and when during postback this value is called back to set the scroll position.
Using javascript I can grab the value from the scrollbar, and assign it to the hidden field, but when I post the page back the value has gone.
Here is my code snippet:
<script type="text/javascript" language="javascript">
function SetScroll(val) {
[code].....Am I missing something? How do I keep the value during post back?
you save data into a dynamic hidden field ,which is created dynamically during the handling of some postback event.what is the best way to retrieve it from this field upon a postback, (besides searching the request for the key of this hidden field and then retrieving the corresponding value as in the code below)?
protected void Button2_Click(object sender, EventArgs e)
{
bool found = false;
for (int i=0; i<this.Request.Form.Keys.Count; i++)
[code].....
I have a form in MVC3 that includes a check box to copy data if it is the same as a previous form. If the checkbox is checked, it populates the text box with the content from the hidden field. Here's a sample to illustrate what I'm doing:
[Code]....
When the box is checked, it calls FillInfo(), which uses DHTML to fill the TextBox called "ThisInfo" with the value of the hidden field "DefaultInfo."
Here's the problem: if the form fails validation (e.g. "ThisInfo" is a required field and is left blank), the hidden "DefaultInfo" box is getting cleared out -- which I DON'T want it to do. As a result, when the checkbox is clicked, it is copying empty data into the "ThisInfo" field.
I have a problem
<script language="javascript" type="text/javascript">
I inherited some JavaScript that I was told to integrate into our ASP.NET site. I thought this would be straightforward but it's turning out to be a bit of a challenge.
The code looks something like this:
<SELECT id="Question1" name="Question" onchange="updateQuestion();">
<OPTION value="notChosen">--Please Select One--</OPTION>
<OPTION value="in">India</OPTION>
<OPTION value="de">Germany</OPTION>
<OPTION value="fr">France</OPTION>
<OPTION value="us">United States</OPTION>
<OPTION value="ch">Switzerland</OPTION>
</SELECT>
The goal is to get the value from this HTML control into ASP.NET, however this control itself is being dynamically generated by another chunk of javascript, so I can't just change this to an asp.net control. My solution was to add the onchange="updateQuestion();" method, this JS will take these SELECT tags and place the values into an ASP.NET control:
function updateSecQ() {
var sQuestion = document.getElementById('<%=sQuestion.ClientID%>');
sQuestion.Value = "";
var questions = document.getElementsByName('Question');
for (question in questions) {
if (questions[question].value != null)
sQuestion.Value += questions[question].value + ",";
}
alert(sQuestion.Value);
}
As you can see, that's looking to update an ASP.NET control:
<asp:HiddenField ID="sQuestion" runat="server" value="" />
This appears to all work, however when I goto the server side on the form submit I see that sQuestion.Value is still = "".
I have a component that determines a value on a postback event.
protected void Button_Click(object s, EventArgs e)
{
HiddenField.Value = 5;
}
There's more involved in the value of course, but HiddenField is an asp:HiddenField control with runat=server set. I have in my javascript:
var id = $("#<%= HiddenField.ClientID %>").val();
The code in the javascript is set to be run only after the postback has occured (a different client click event) for the purpose of passing the hidden field value via QueryString to another URL (since i can't do a response redirect on postbacks and the client wants it in a different page anyway).
I tried adding:
ScriptManager.RegisterHiddenField(HiddenField, "Value", string.Empty);
To a !Page.IsPostback section of code, but the ID is still not set when the javascript is run.
I have stored a string value in a hidden field of a page. How to access it from a different webpage?
View 4 Repliesi have a
<asp:HiddenField runat="server" ID="ListTwoHiddenField" />
i have some programming aspect how can i check whether hidden field is empty or not i mean i want to check that ListTwiHiddenField.items.cout==0 or empty how can i check this
can we store viewstate other than in hidden field in asp.net
View 2 Replies(using Ajax in the backhand) I am trying to set a value for a hidden field, when an id is changed. I am getting object reference not set error.
As of know i return the string value through callback and got it done in the front-hand.
Is there anyway that i can set the value in the code-behind when using Ajax methods.
I am trying to set the value of a hidden field onblur. I add the blur attribute programatically on page load. When the user moves off the control the blur event fires the following javascript.
function getFocus()
{
var obj=document.activeElement;
alert(obj.id);
[code]...
I have to hide the VIEWSTATE and EVENTVALIDATION hidden fields on my ASP.net page at RUN time.I managed to remove the EVENTVALIDATION like so.............
<%@ Page enableEventValidation="false" EnableViewState="false" %>
But the VIEWSTATE is still there and I cant get rid of it and I need to. (hard to explain why)Is there another way of getting rid of it?