how to create bar graph dynamically using d3 js in .net - asp.net-mvc-3

Question

I am new in D3 js and working on it.i wanted to implement bar graph through it in my MVC3 web application.Could you please let me know how can i create bar graph with dynamically.below is sample code but i am not able to find the dynamic creation bar graph
<script>
var margin = { top: 20, right: 20, bottom: 30, left: 50 },
width = 600 - margin.left - margin.right,
height = 400 - margin.top - margin.bottom;
var parseDate = d3.time.format("%Y").parse;
var x = d3.time.scale()
.range([0, width]);
var y = d3.scale.linear()
.range([height,0]);
var xAxis = d3.svg.axis()
.scale(x)
.orient("bottom");
var yAxis = d3.svg.axis()
.scale(y)
.orient("left");
var line = d3.svg.line()
.x(function (d) { return x(d.year); })
.y(function (d) { return y(d.oil); });
var svg = d3.select("body").append("svg")
.attr("width", width + margin.left + margin.right)
.attr("height", height + margin.top + margin.bottom)
.append("g")
.attr("transform", "translate(" + margin.left + "," + margin.top + ")");
d3.csv("YearlyOilProduction.csv", function (error, data)
{
data.forEach(function (d) {
d.year = parseDate(d.year);
d.oil = +d.oil;
});
x.domain(d3.extent(data, function (d) { return d.year; }));
y.domain(d3.extent(data, function (d) { return d.oil; }));
svg.append("g")
.attr("class", "x axis")
.attr("transform", "translate(0," + height + ")")
.call(xAxis);
svg.append("g")
.attr("class", "y axis")
.call(yAxis)
.append("text")
.attr("transform", "rotate(-90)")
.attr("y", 6)
.attr("dy", ".71em")
.style("text-anchor", "end")
.text("million Sm3");
svg.append("path")
.datum(data)
.attr("class", "line")
.attr("d", line);
});
</script>