In ASP.NET, when you give a tag an ID it generates a unique HTML id for the element based on the control hierachy, ie.
<asp:Panel ID="test" runat="server">
...
</asp:Panel>
<!-- Becomes... -->
<div id="plc_lt_zoneContent_PagePlaceholder_PagePlaceholder_lt_test_test">
...
</div>
Is there some way of determining the generated id in the codebehind file? I need to generate some Javascript that uses the id.
I have Membership, Profile and Role providers setup for my .NET MVC website. I would like to say: this Role has access to that Page. How do I 'inject' this code to the RoleProvider? Or do I have to override it somehow? Any leads?(Roles are stored in the default ASP.NET SqlRoleProvider, Pages are stored in a seperate SQL database).
View 2 RepliesI have an asp.net page where i have the below markup.Basically this markup is generated from codebehind by reading records from a table and looping thru them.For each record in table,there will be a div block. Basically this form is to read/show settings for a user.The settings entries are stored in a table.
<div id='divContainer' runat='server'>
<div id='div1' runat='server'>
<table>
<tr>
<th>Name</th>
<td><input type='text' id='txtName1' value='something' /></td>
</tr>
</table>
</div>
<div id='div2' runat='server'>
<table>
<tr>
<th>Domain name</th>
<td><input type='text' id='txtName2' value='something' /></td>
</tr>
</table>
</div>
<div id='div3' runat='server'>
<table>
<tr>
<th>URL</th>
<td><input type='text' id='txtName3' value='something' /></td>
</tr>
</table>
</div>
<div id='div4' runat='server'>
<table>
<tr>
<th>Some other value is enabled ?</th>
<td><input type='checkbox' id='chk4' /></td>
</tr>
</table>
</div>
</div>
The id's of each input element will be unique. Now in codebehind i want to read the values of each input elment to save the changes user made.How can i read the elements here ? Since the mark up is generated in codebehind as a string and appended the the INNER HTML of the external div,I cant read values like we do for a control which we drag and drop in the IDE.
I have inherited a database that is throwing me for a loop. Each user in this database has a "Password" and a "HashedPassword". I changed my password to "Testing" and discovered that the database stores the password like the following:
Original: "Testing"
Password Field: 211216058087052117197079019018007020147229039085161161
Hashed Password: 16e118ce2fd9e0cebda251af3a24fd6c5b6578ab
I was able to reverse engineer it to discover that the "Hashed Password" is generated using SHA1 encryption. My problem is, I can't figure out what is used for just the "Password Field". Can anyone give me any ideas of how to determine how the "Password Field" is generated? Can anyone look at this and tell me?
In asp.net page, How can i call the javascript methods for form processing-submitting if the user browser supports javascript and use code behind events if the browser does not support javascript.I have the javascript code to send the form data to an ajax server page using jquery. Don't know how to invoke the needed one based on the browsers javascript availability
View 1 RepliesIn the Script documents that asp.net automatically generates how can I surround the whole generated scripts with try/catch statement to avoid 'Microsoft JScript Compilation error'
My issue is: i got a DevExpress control (ASPxGridView) that added and set-up in run time, since i activated the grouping functionality in the grid I still get JS error says ';' expected whenever i use (click) on one of grouping/sorting abilities, I activated script Debugging for IE, in the JS code turns out that there is no missing ';' and once i click ignore for the error msg that VS generates every thing works fine, and surly end-user can't see this msg so i figured out if i try/catch the script that may help avoid this error.
maybe it's a dumb question, how can i see the designer generated codebehind files (named .designer.aspx.cs) in VS2010?
i need it to wireup form events when i disable autowireup option at @form.
So I've been handed an older website, and been asked to make some modifications. It's been made with ASP, and I'm not really familiar with it. [URL] I've been asked to get rid of that awful scrolling. By looking at the page source, I determined that the scrolling is done using some inline Javascript.
<script type="text/javascript">
function getElementPosition(theElement){
var posX = 0;
var posY = 0;
while(theElement != null){
posX += theElement.offsetLeft;
posY += theElement.offsetTop;
theElement = theElement.offsetParent;
}
return {x:posX, y:posY};
}
var offsetY = 0;
window.onload = function(){............................
I have an application which use some javascript functions,As all javascripts include in Masterpage, most of them which comes withpage are not necessary, and some of those are repeated ( cause used in some different JS file. )So I want to check if there is a way to determine duplicate functions and remove them ?
View 4 RepliesI'm building several user controls (ASCX) for my website and several of them are very similar in what they do. (As a side note, I must create unique UC's even if they're similar because I'm creating widgets for the new Telligent Community themeing system). For example, two of them are different but use the same front-end code to create a 2 or 3 tab panel where you can click a tab and it changes the data below. I have a single JS file to handle these tabs and the animations. I'm currently dynamically adding my JS file reference to the <head> from the user controls' code via:
Literal jsFile = new Literal();
jsFile.Text = string.Format("<script src="{0}"></script>", "/community/themes/test/js/tabbedCallout.js");
Page.Header.Controls.Add(jsFile);
If I have both of these controls on a page though, both will add this JS file reference. How can I do a check to see if it is already added from another control?
I have set up in javascript:
var onBeforeUnloadFired = false;
window.onbeforeunload = function (sender, args)
{
if(window.event){
if(!onBeforeUnloadFired) {
onBeforeUnloadFired = true;
window.event.returnValue = 'You will lose any unsaved changes!'; //IE
}
}
else {
return 'You will lose any unsaved changes!'; //FX
}
windows.setTimeout("ResetOnBeforeUnloadFired()", 1000);
}
function ResetOnBeforeUnloadFired() {
//Need this variable to prevent IE firing twice.
onBeforeUnloadFired = false;
}
I'm trying to achieve an edit screen where the user is warned before navigating away. It works fine except I get the pop up for normal post backs of button clicks. I'm hoping to avoid this so I'm figuring if I could determine which button was pressed it would work. Does anybody know how to determine which button was pressed in the indows.onbeforeunload? Alternatively anyone know a better approach to what I'm trying to achieve?
I am trying to run a javascript command like this:
[Code]....
And it does work for me. the problem is once a message contains spechial charachter it stop working
[Code]....
[Code]....
I have read many different resources but am still not sure if this is possible without using AJAX.
I have a javascript function that loads a div into a modal and says "Loading Please Wait" I have named this funciton loadingModal()
function loadingModal(url)
{
loadModal(...)
}
What I need to do is only trigger this after I have verified that the password and username are correct on the server side so:
btnSubmit_OnClick(object sender EventArgs e)
{
string usr;
string password;
if (verify(usr, password))
{
///// TRIGGER JAVASCRIPT HERE
LOAD TONS OF SESSION VARIABLES
.
.
.
}
else
Show Error and Definitely Don't ever mention still loading
}
I know I could just attach an onclientclick call to the javascript however it would load the loading modal even if it was an invalid username and password
Can I trigger javascript mid execution from the server side?
I can not get the javascript function below to fire, what have I missed from the code?
View 11 RepliesI have a JavaScript function which i call in the onchange handler of a dropdownlist. If the selected value of dropdownlist is "1" i want to call one function in codebehind.
Following is the function in JavaScript:
function GetAdmissionType()
{
InitComponents();
var type="";
type=document.getElementById(dlAdmissionType.id).value;
document.getElementById(hdnAdmissionType.id).value=document.getElementById(dlAdmissionType.id).value;
if(type=="1")
{
}
}
If type is 1 then i want to work following code in codebehind
public void LoadSemesters()
{
//code to load other dropdownlists
}
call function in codebehind from JavaScript?
I have a search page that is used in multiple places with multiple 'themes' throughout my site. I have a few divs that can have their background color changed based on a radio button selection (whether they are enabled or not). I can do this just fine by changing the css class of the div on the fly with javascript.
However, these themes could potentially change, and the background color is grabbed from a database when the page is created. Right now I do this in the C# codebehind:
string bgStyle = "background-color:" +theme.searchTextHeaderColor +";";
OwnerSearchHeader.Attributes.Add("style", bgStyle);
In the Javascript I need to change this color to make it look disabled, and when the user clicks back to this div I need to re-enable it by changing it back to its original color. But since I only knew this color in the code-behind, I don't know what it was in the Javascript.
So my thought was to create a css class in the resulting HTML page when the page is loaded with the background color I need. Then I could simply switch from the divEnabled and divDisabled class in the javascript. But I'm not exactly sure how to do that.
I can't run Javascript from codebehind in my component.
My compenent simply listen a server from TCP/IP socket and create a nre thread for listening.
this.tcpClnt = new TcpClient();
this.tcpClnt.Connect(this.HostIP, Conversions.ToInteger(this.HostPort));
this.Stm = this.tcpClnt.GetStream();
new Thread(new ThreadStart(this.ReadSocket)).Start();
In my component ChangeState event, I'm trying to update a label.text.
[code]...
I tried with RegisterClientScriptBlock but it didn't change the label text.
How can i assign value to javasctipt variable from code-behind (C#)?
<script type="text/javascript">
String.prototype.trim = function () { return this.replace(/^s+|s+$/, ''); };
function ConstantByCode(_Obj, _Div) {
var pl = new SOAPClientParameters();
_Obj.value = _Obj.value.trim();
pl.add("Code", _Obj.value);
[code]...
Is it possible to call ASP.NET codebehind function from Javascript.
View 5 RepliesOK, this feels like a question that should be easy to answer, but as with so much mixing of asp.net and jQuery, it's a bit of a nightmare.
What I want to do is be fading a div in and out at various times during the client's viewing of my asp.net page; I fade it out using jQuery's fadeTo() before triggering an UpdatePanel update (to indicate that the data there is not fresh) and I want to fade it in again once the UpdatePanel has been updated. I've gotten as far as updating the UpdatePanel in the codebehind, and this results in the div's content changing... but how do I fade the div back in again?
The way I see it, there are 2 ways; register an event handler on page load to detect when the div's content has been changed and fade it back in, or call a function from the asp.net codebehind when I've updated the div to fade it back in.
In the first case, there doesn't seem to be any event triggered by the div's content changing, so I can't seem to do that. If anyone knows how I could get a client event to trigger when I update the div, that would be a nice solution.
In the second case, I thought that this was what ClientScriptManager was for, but it doesn't quite do what I want. I want to be able to register a particular Javascript function with ClientScriptManager and then tell ClientScriptManager to execute it in the client, from my codebehind. You can't seem to do that. ClientScriptManager.RegisterClientScriptBlock() simply inserts some <script> into the HTML output, rather than calling a function. Presumably this would work if I kept registering things like:
<script>fadeBackIn();</script>
because the Javascript would be immediately evaluated and run, but this feels messy, and that feeling is intensified by the fact that I'd have to keep randomly generating a new unique value for the key argument of ClientScriptManager.RegisterClientScriptBlock(), because it's specifically designed to stop this kind of repeated code. However, I'm struggling to see an alternative.
I'd really like something along the lines of:
ClientScriptManager.RegisterClientScriptFunction("fadeBackIn", "function fadeBackIn(){ ... }");
ClientScriptManager.ExecuteClientScriptFunction("fadeBackIn");
Is it possible to call a C# function in my codebehind from javascript?
View 3 RepliesAfter includeding file.js in ny webpage This script will create a variable within the current javascript context called "Status". This variable can take three values : "On", "Off", "Unknown".How can I read this value on code behind? I am planning to check if the variable is false and if so, make some changes on page.
View 4 Repliesget the value of Global variable in javascript example var a="priti"so want to access "a" in code behind as it's global varible
View 2 RepliesI'm having some trouble with making use of some AJAX-properties that are normally accessable after I've initialized a scriptmanager.
ie. This work:
[Code]....
Now, I would like to call the javascript-function 'testFunc()' from my ASP.NET Codebehind-file, and here's my problem. I keep getting "Sys is unidentified".codebehind-stuff: ScriptManager.RegisterClientScriptBlock(this, this.GetType(), "testkey", "testFunc();", true);
Does anyone have good idea how to solve this?
Much appreciated. Thanks.
I have a modalpopupextender that I want to run based on a timer control. I've tried using the clientregisterscript to run some javascript code to perform a fake click on the link control that initiates the modalpopup, but with no luck. What is the best way to either show the modal dialog programatically or register a jscript that will do this.
View 2 Replies