Develop Reference

Concat QML Properties with Javascript

I'm setting properties on QML items with java script, where "gaugetext" is a property of my QML object.
function finishCreation(setWidth,setHeight,setX,setY,setMinValue,setMaxValue,setDecPlace,setUnit,setID,SetValueObject,SetValueProperty) {
...
"gaugetext": Qt.binding(function(){return SetValueObject[SetValueProperty] + " " + setUnit})
....
}
This works well, but I want to set numbers of decimals. So I tried this:
"gaugetext": Qt.binding(function(){return "(" + SetValueObject[SetValueProperty]+ ")" + ".toFixed(" + setDecPlace + ")" + " " + setUnit})
But this results that the correct Value is shown with ".toFixed(value)".

You return a String "(<someValue>).toFixed(<someOtherValue>) <someThirdValue>".
You probably want to omit some of your " since you probably want to have the pieces that you mark as string to be executed instead.
return SetValueObject[SetValueProperty].toFixed(setDecPlace) + " " + setUnit
~~~(untetested)
Most likely however using a "finalize creation" function is a bad approach.

pass toString(number) in innerHTML

This is my first post, I am "new" to javascript but experienced in actionscript. I'm having an issue that should not be one, can't get my head around it.
In the code below all I want to do is pass a integer variable (stackID) as an img id attribute inside innerHTML. It must be some detail I just don't know but I have searched for hours on google to no avail. Help would be greatly aprreciated. Whatever I do, it seems I can only pass <img id="string">, which of course is not what I want. Can't pass <img id=numVariable>, or <img id=String(numVariable)>, there must surely be a way to do this ?
Thanks folks !
Here is the line of code :
div.innerHTML='<img src="img/xbut.png" id=String(stackID) onclick="close(this.id)">';

You're trying to pass it in the string.
What you want to do is:
div.innerHTML='<img src="img/xbut.png" id="' + String(stackID) + '" onclick="close(' + this.id + ')">';
Oh and since you're already making a string, you don't need the String() convert, you can just id="' + stackID + '"

Javascript is loosely typed and will automatically convert (to the best of its abilities) anything you want to interpolate in a string:
var num = 1;
"sup" + num; // => "sup1"
It's cool, but be careful though, it can lead to some weird surprises:
var obj = {};
"sup" + obj.missingKey; // => "supundefined"
In that case, obj.missingKey === undefined, and String(undefined) === "undefined", so "sup" + obj.missingKey becomes in fact "sup" + "undefined"

javascript has not string interpolation. Concatenate stackId like:
div.innerHTML='<img src="img/xbut.png" id="' + stackID + '" onclick="close(this.id)">';

Use '+' to join chunks like this:
div.innerHTML='<img src="img/xbut.png" id="' + String(stackID) + '" onclick="close(' + this.id + ')">';

Try this, you make the variable is dynamic:
var x = 0;
x = x +1;
div.innerHTML='<img src="img/xbut.png" id="name_' + x + '" onclick="close(this.id)">';

error due to single quote in a parameter in url query string

I have a screen from which I am passing a parameter to other screeen. This parameter contains a single quote. (For eg. ABC's xyz). The other screen shows this paramter correctly on screen. However, I am not able to submit the request on load to servlet. I am not able to figure out why?
Tried using URL encoding, replacing ' with \' and replacing ' with %27. Didn't work for me. Plz help.
The code is as follows.
child page var scheme = document.forms[0].scheme.value;
window.location.href = redirectVal+".jsp?levelOfReport="
+ levelOfReport
+ "&circleCode="
+ circleCode
+ "&networkCode="
+ networkCode
+ "&moduleCode="
+ moduleCode
+ "&regionCode="
+ regionCode
+ "&branchCode="
+ branchCode
+ "&circleName="
+ circleName
+ "&moduleName="
+ moduleName
+ "&branchName="
+ branchName
+ "&Amount="
+ Amount
+ "&scheme="
+ scheme + "&fromDate=" + fromDate + "&toDate=" + toDate;
Child page
SubmitButton('./Report.do?method=getAgriProductWisePerformanceReport&levelOfReport=&scheme=<%=request.getParameter("scheme")%>

You're missing the end to your method call.
SubmitButton('./Report.do?method=getAgriProductWisePerformanceReport&levelOfReport=&scheme=<%=request.getParameter("scheme")%>
Map your quotes to eachother, you're telling it to do something like
SubmitButton('./SubmitButton('./Report.do?method=getAgriProductWisePerformanceReport&levelOfReport=&scheme=HTTP
You need to add an additional '); at the end of that line

Javascript variable, different values, same line

First of all, let me apologize for the title, as it isn't so explanatory, but I could not say it in another way.
The deal is: I am doing a javascript application, in which I have an object called "ocorrencia", which was defined like this:
var ocorrencia = new Object();
that object has several children, being filled by a method:
ocorrencia.idOcorrencia = ""+ year + month + day + hour + minute + second + milisec;
idOcorrencia is the one I am having problems with, because I am running a DataBase insert with this value, and I use it 2 times in the same insert, like:
var sql = 'INSERT INTO OCORRENCIAS (id, ocorrencia, data, resolucao, urgencia, foto) VALUES (' + ocorrencia.idOcorrencia + ', "' + ocorrencia.descricao + '", "' + ocorrencia.data + '", "' + ocorrencia.resolucao + '", "' + ocorrencia.grauUrg + '", "' + ocorrencia.idOcorrencia + '.jpg"' +')';
The insert runs great, an I have all the data inserted in the DB, BUT "id" and "foto" (which were supposed to get equal values) are giving me different values by 2 or 3 miliseconds.
How can this happen, as I am not changing "ocorrencia.idOcorrencia" ?
This is beeing tested in an Android device.
EDIT: Tested on Windows browser and the problem doesn't appear to happen.
Thank you

I guess you fill idOcorrencia on runtime? So the lag is producing this difference.
Try using a hash for the id or set it before running the SQL-query.

Calling Html Helper Method from Javascript Function

I am trying to call a custom Html helper method that I have written from a javascript function that is used by jqGrid to return formatted text, in this case a link, for a cell:
function formatGroupPlanEditLink(cellValue, options, rowObject) {
//var cellHtml = "<a href='/Insurance/GroupPlanEdit/?id=" + rowObject[0] + "'>" + rowObject[1] + "</a>";
var functionArgs = rowObject[1] + ',Url.Action("GroupPlan", "Insurance", new { id = ' + rowObject[0] + ' }),String.Format("Edit {0}", ' + rowObject[1] + '), listId,Url.Action("GroupPlanList", "Insurance"),false';
var cellHtml = '#Html.DialogFormLink(' + functionArgs + ')';
return cellHtml;
}
The problem that I have is that I cannot concatenate the entire string before the helper is executed. So the browser is trying to execute "#Html.DialogFormLink(" - which of course causes an error. I guess there must be a better way to go about this. I really want to still be able to use the Html helper method as I use it elsewhere, and it works nicely for my requirements.

I'm not that familiar with Razor, but the quotes around the #Html helper look suspicious.
var cellHtml = '#Html.DialogFormLink(' + functionArgs + ')';
The browser doesn't execute #Html.DialogFormLink; the server evaluates it. I suspect the server is injecting the literal '#Html.DialogFormLink' into your js.