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JS: how to filter table using variable

I have a function that I need to use for filtering table rows:
setFilterString("Filter");
But I have a problem. I can set it to
setFilterString("OrderID = 5");
and it will filter out row where OrderID is equal to 5 but if i try using a variable that has a value taken before like this
setFilterString("OrderID = vOrderID");
I get error "Invalid column name 'vOrderID'." (as vOrderID is variable and not a column, I guess)
I have seen somewhere in filter section inputting something like this ("OrderID = '" & vOrderID & "'") but it doesn't have any result at all for me. Doesn't even throw any error in the console.

JavaScript assumes you are just passing a string to the function. If you want to use the variable, you should try this:
setFilterString("OrderID = '" + vOrderID + "'"); // Results in OrderID = '5'
or
setFilterString("OrderID = " + vOrderID); // Results in OrderID = 5
depending on the body of your function.

Use + instead of &: setFilterString("OrderID = " + vOrderID) should work.

Use "+" for merge strings:
setFilterString("OrderID = " + vOrderID)
You can also try to use ${idvOrderID} inside string:
setFilterString("OrderID = ${vOrderID}")
Or:
setFilterString(sprintf("OrderID = %s", vOrderID))
Remember about difference between ' and "

how can call javascript from c# ext.net

in my project when i run it in chrome it is showing wrong time. explorer it is showing true. So i write this js code but it is still doesnt working.
This is my js;
var FormatTrxStartDate = function (value, record) {
var processDate = new Date(value);
return processDate.getDate() + "." + (processDate.getMonth() + 1) + "." +
processDate.getFullYear() + " " + processDate.getHours() + ":" +
processDate.getMinutes() + ":" + processDate.getSeconds();
};
And this is where i use it;
<ext:ModelField Name="TrxStartDate" Type="String" >
<Convert Fn='FormatTrxStartDate' />
</ext:ModelField>

Pass Parameter Value in not proper Date Format
Use processDate.getFullYear()==> processDate.getFullYear().toDateString() date data convert into String

X.Js.Call("FormatTrxStartDate ",value,record);
please try this code

Define session variable in c# get it from javascript

I'm saving string that represents the URL in a session variable from my code behind like this:
String mois = Request.QueryString["mois"].ToString();
String m = mois;
String moisnom = Request.QueryString["moisnom"].ToString();
String annee = Request.QueryString["annee"].ToString();
String dt = Request.QueryString["date"].ToString();
String user = Request.QueryString["user"].ToString();
String where = "jour.aspx?mois=" + mois + "&moisnom=" + moisnom + "&annee=" + annee + "&date=" + dt + "&user=" + user + "&cp=all" + "&usl=" + Request.QueryString["usl"].ToString();
Session["togo"] = where;
And then I try to get it like this in JavaScript like this:
var togo = '<%=Session["togo"]%>';
// i also tried this var togo ='#Session["togo"]';
var newPage = togo; // this should contain a string with the url to go to
But when I use it it uses it as a string here is what my URL looks like:
http://localhost:50311/<%=Session["togo"]%>
or
http://localhost:50311/#Session["togo"]
How else can I access the session variable or what am I doing wrong please?
EDIT:
like you suggested i already tried using the hidden field like this
yes i tried that but then i had this problem here is the definition of the hidden field
<input type="hidden" value="aa" id="myHiddenVar" runat="server"/>
then i tried giving it the value i need on click
String where = "jour.aspx?mois=" + mois + "&moisnom=" + moisnom + "&annee=" + annee + "&date=" + dt + "&user=" + user + "&cp=all" + "&usl=" + Request.QueryString["usl"].ToString();
myHiddenVar.Value= where;
and this is how i tried getting it from the js file
var togo = $('#myHiddenVar').val();
var newPage = togo;
but it takes the default value meaning "aa" as in value="aa" i gues cause the script is executed before the assignment of the variable any way how to reverse that order ?

After Session["togo"] = where;
save this Session["togo"] in hidden variable
hiddenVariable= Session["togo"];
Now in JS access that hiddenvariable:
suppose ID of hiddenvariable is "hdnxyz"
var togo = $('#hdnxyz').val();
var newPage = togo;

first of all session resides on server!!!!!!
If it is in different js file than you cant access it <%xyz%> i.e scriplet tags only work on aspx page...
so there is no way to access the session variable on client side..
instead assign your sessio9n value to a hidden variable and then access it using javascript

Write Session element in a asp:HiddenField and then read from it with your js code.

Javascript - accessing single name value pair not working

Can anyone tell me why this is not working?
var fieldsValid = {
registerUserName: false,
registerEmail: false,
registerPassword: false,
registerConfirmPassword: false
};
function showState () {
var str = "<p>registerUserName: " + fieldsValid[registerEmail] + "</p>" ;
document.getElementById('showstate').innerHTML = str;
}
showState();
There is no output into my div.

Use quotes around the property name because otherwise, registerEmail is treated as a variable containing the property name, not a property name:
var str = "<p>registerUserName: " + fieldsValid['registerEmail'] + "</p>" ;
Or use the . syntax without quotes:
var str = "<p>registerUserName: " + fieldsValid.registerEmail + "</p>" ;
MDN Working With Objects is a good resource, relevant to this.
For future debugging, observe the console (F12) in your browser.

Let's say you have someObject.
someObject[johndoe] Returns the item in someObject that has johndoe's value (since here it is a variable) as index.

Join syntax in javascript

Please suggest me how to play with Join in javascript.
My Code
var multiTokenQuery = value.join(',');
submitted.set('multiTokenQuery', multiTokenQuery);
alert(multiTokenQuery);
the above code shows (abc,bcd) but I want it in ('abc','bcd') I mean I need single qoutes on the values ...
Please Help

Change the glue in the bits:
var multiTokenQuery = value != null && value.length > 0 ? "'" + value.join("','") + "'" : value;

You'd like to use the following instead to get your quotes.
var value = ['test','sample','example'];
var multiTokenQuery = "'" + value.join("','") + "'";
alert(multiTokenQuery);
JSFiddle: http://jsfiddle.net/FJUJ9/1/