Create JavaScript Variable In Code Behind
Dec 9, 2010How to register a Java Script varibale in Server Side (Code behind ) and access at Client side (Javascript file ) , without a hiddenfield , Literal etc
View 4 RepliesHow to register a Java Script varibale in Server Side (Code behind ) and access at Client side (Javascript file ) , without a hiddenfield , Literal etc
View 4 Repliesfor(var i=0; i<<%=Model.Mydatalist.Count%>;i++)
{
//then I need to pass i to Mydatalist like Model.Mydatalist[i]
}
//var myJSdata="<%Model.Mydatalist["&i&"]%>";
is not working.. as system see i (i's value) as a string, and will throw exception: cannot convert string to int.
Here are 3 scenarios:
namespace NS
{
public partial class A: System.Web.UI.UserControl
private Variable v;
protected void Page_Load(object sender, EventArgs e){
if (!Page.IsPostBack) v= new Variable();
....
}
}
namespace NS
{
public partial class A: System.Web.UI.UserControl
private Variable v = new Variable();
protected void Page_Load(object sender, EventArgs e){
}
}
namespace NS
{
public partial class A: System.Web.UI.UserControl
private Variable v;
protected void Page_Load(object sender, EventArgs e){
v = new Variable();
}
}
When does the variable "v" gets created every time for the 2nd scenario? Is the 2st scenario is equivalent to the 3rd one?
How can I call a .net method in inline code using a javascript variable?My code looks like this:
for ( var i = 0; i < numberIterations; i++ )
{
var result = <%# GetFilterTagURL( myArray[i].Value, false) %>;
//do stuff with result
}
This block is inside a javascript block; the GetFilterTagURL method is a a .net method and I want to pass the variable myArray[i].Value as the first parameter.
UPDATE:I guess that, as you say, I'll have to create a web service to achieve what I want.
can we grab a global variable or Session or View State variable in the javascript or using jquery?
I'm evaluating two options of accessing a server side data on client side. Little bit confused about the efficiency or may be you can call it as finding best approach to do it.
I need to access a server side data may be an integer value in javascript on client side. I know about two options to do it.Create a public variable or property on server side and set it to javascript variable on client side as below:
var value = eval(<% =value %>);
Create a asp hidden variable and set value in this hidden variable from server side and access it through javascript using document.getElementById().
Which is the best approach and what are the pros and cons?
I have a page with a Textbox, a Button and a Label control. On Button_Click event , I store the value of Textbox in a variable called S using code behind.
I want to show the value of S in the Lable control using inline code but not using the code behind. ?
How to Use a Variable Defined in Code Behind File on inline code for same page..
View 7 RepliesI have a gridview that when users click an asp:Button a confirmation box needs to appear. Inside that confirmation box, I want to include information from the gridview (DataKeyValues) that I can use in the codebehind to customize the confirmation message that pops up.
View 1 RepliesI have 2 separate code-block asp.Net expressions in an aspx markup, with an html content between (span element in the example below). In the first code-block, there is "i" as an increment variable for the for loop.Then the code-block is cut with an html content.And another code-block expression is opened but as I see I can reach the "i" variable which was declared in the previous code-block.
So, how asp.net handles -compiles- the pieces of code-block experrions declared in the mark up? Does it check the semi-colons and generates some anonymous methods which will end up with many calls to Response.Write in the last place?
<p>
<%for (int i = 0; i < 30; i++)
{
[code]....
I need to get model data into a JavaScript variable and use it as an int to compare values. But I can only figure out how to get the model data as strings, otherwise the compiler complains.
So how can I get the max and taskBudgetHours as int variables in the Javascript?
[code]....
I'm making an ajax request and storing my response in an hidden field.I'm doing this through javascript using getelementbyid.value.This javascript function is on body onload.Now after I get this value I would like to use this in C#.I can't have any button onclick event or anything of that sort.Just have a hidden input type
View 1 RepliesI'm having a bit of difficulty setting a variable from the code behind and utilising it in the ASP.NET page (setting it as the value inside a textbox). My webpage simply errors and says it does not exist in the current context. The variable is declared and set all in the Page_Load method.
Here is the relevant ASP.NET code. I assume you will not need to see the code behind, as I have tested outputting the variable via the codebehind (using Response.Write) and that works fine.
<asp:TemplateField HeaderText="Initial Path"
SortExpression="Initial_Path">
<EditItemTemplate>
<asp:TextBox ID="TextBox6" runat="server"
[Code]....
What's not working is just the <%= initialpath %> in the ASP form. It simply just doesn't show anything, like the variable is assigned nothing
I just need to know how to pass a javascript variable to c# when i click on a button
View 2 RepliesI'm writing some Javascript code for an ASP.net page. have the string "foo" assigned to a string variable myString.I would like to assign the value of myString to a JavaScript variable, so I write in my ASP.net code:
<script type='txt/javascript' language='javascript'>
var stringFromDotNet = '<%=myString%>';
</script>
This works fine as long as myString does not contain quotation marks or line-breaks, but as as soon as I try to assign something with quotation marks or line-breaks, all hell breaks loose and my code doesn't work.
I'm converting a string to integer and than inserting this integer in my post table.
int currTopicID = Convert.ToInt32(id.Text);
SqlCommand cmd = new SqlCommand("INSERT INTO post VALUES(currTopicID)", con);
The problem is that currTopicID isn't being recognized as an integer when i do the insertion.
how could i store a Asp.net Application variable by javascript.
View 2 RepliesHow 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]...
I want to assign a csharp variable to the element of asp page using javascript. It seems the assignement is not working in my code.
document.getElementById('lbAccessories').innerHTML = '<%#SelectLabel%>';
<asp:LinkButton ID="lbAccessories" runat="server" />'
Text='<%#SelectLabel%>' because i want to make it more intelligent.
e="text/javascript">
function function(Ref) {
[code]...
I would to know how to pass variables. I have a variable in javascript but I dont know how to pass it to a textbox. I have read it is so easy using ajax, but I dont know how to use it. I believed this was just for not to have reload. Well, then how do I do it? I read I must use get and post, but I dont know how to use it.. for example I have the code:
function guardar() {
var completo = "hola mundo";
}
How do I get the variable completo to pass it in a textbox?
I want to create dynamic integer variable for each role in this loop. Which I will user later for totaling item count in other logic.
Is this possible to create a runtime dynamic variable?
I have several Include files in asp classic that I would like to convert to the class in C#, I have bunch of variable, Constraint, functions, DB connection. Is class the best way to convert them?
View 2 RepliesI'm building an application using MVC3 RC and I'm trying to add a session variable as soon as anyone logs on. The variable is an int which is retrieved from a database using User.Identity.Name to retrieve the relevant database record.
I'm using the MS AccountController and tried adding the session variable immediately after the line:
FormsService.SignIn(model.UserName, model.RememberMe);
Although this is the point at which the logon is validated the User.Identity.Name is still showing as null when I try to get it immediately after.
Does anyone know when User.Identity.Name is actually populated in the session and how I can intervene to grab it at that point?
how do you call code behind button click event or a code behind method
from javascript.
I have an asp.net button, that when clicked calls a code behind function. The function does some evaluation, and then I want to call javascript from within this asp.net function.
View 2 Replies