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How to make a chart in ASP.NET so that I can display data from database using the chart. Any body can explain me? Thank you.
#{
var db = Database.Open("SmallBakery");
var dbdata = db.Query("SELECT Name, Price FROM Product");
var myChart = new Chart(width: 600, height: 400)
.AddTitle("Product Sales")
.DataBindTable(dataSource: dbdata, xField: "Name")
.Write();
}
Source
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I want to know how we can loop through and add pixel values?
Example,
let testArray = [{width: '150px'}, {width : '150px'}]
So i want to loop through it and have to return total value i.e '300px'
Can someone please help me?
let sumWidth = 0
testArray.forEach((object)=>{
sumWidth+= parseInt(object.width.slice(0,-2))
}
let result = sumWidth.toString() + 'px'
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I was developing this polilynes code, and I need to display the polilyne distance completely, how do I do this?
Here below is the code I am using:
https://drive.google.com/file/d/1eQg-hnOFuRWOPWUhg8Lqq38Lc6Pi9uJc/view?usp=sharing
You can calculates geojson with libs like Turf.js.
For example, turf/length measures length of lineString, like below.
const line = turf.lineString([
[-53.08074, -25.766767],
[-53.097358, -25.77123],
[-53.117901, -25.798796],
[-53.147227, -25.801503],
[-53.187904, -25.812659],
[-53.235429, -25.811208],
[-53.276227, -25.802679],
[-53.305865, -25.788242]
]);
const len = turf.length(line, { units: "kilometers" }); // 24.96224597809012
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After data is loaded from filesystem, which model worth to use to resize image and return to client?
fs.readFile(process.env.OPENSHIFT_DATA_DIR + request.headers['filename'], function read(err, data) {
var w = request.headers['w']
var h = request.headers['h']
response.writeHead(200)
// CODE TO RESIZE DATA
response.write(data)
response.end()
})
Use ImageMagick:
https://www.npmjs.com/package/imagemagick
Or other modules from npm:
https://www.npmjs.com/package/image-resizer
https://www.npmjs.com/package/resize-image
https://www.npmjs.com/package/easyimage
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my php site will echo a number. Now I want to read the content with JavaScript. How can i do this.
You can do the following with jQuery:
$.get("http://www.myawesomephppage.com/page.php", function(data) {
alert(data);
});
Or without jQuery:
var con = new XMLHttpRequest();
con.onreadystatechange = function() {
if (con.readyState == 4 && con.status == 200) {
alert(con.responseText);
}
};
con.open("GET", "http://www.myawesomephp.com/mypage.php", true);
con.send();
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I am integrating jqbarGraph, the demo worked fine. I want to make the values dynamic.
this is my json response
{"success":false,"message":{"12":7887,"11":159}}
I need an array like this
graphByMonth = new Array(
[7887,12],
[159,11]
);
Need to create dynamic array from JSON data.
Does this work?
var graphByMonth = [],
jsonResponse = {"success":false,"message":{"12":7887,"11":159}},
data = jsonResponse.message;
Object.keys(data).forEach(function (k, i ) {
graphByMonth.push([data[k],+k]);
});
console.log(graphByMonth);