c# urgent task

Hi , I need this : Due Date is in 30 hours...program is Visual Studio 2012... Create a Web service in C# that returns daily price data for a certain stock, which is identified by its ticker symbol. The service method will be like this: double[ ] getPrices( String ticker ); Next, you will create a Windows Desktop application in C# that consumes the service by passing 3 ticker symbols, and drawing a line chart showing the three sets of stock prices on the same chart. Each line must have a different color, selected from this list: black, navy, red, maroon, blue, dark green, dark gray, purple. The graph background must be white. The Y-Axis must be scaled so that the largest graphed value is near the top of the Y-axis, and the smallest graphed value is near the bottom of the Y-axis. A list of twenty sequential dates must appear along the X-axis. Price data: Your web service's constructor will create price data for three stock ticker symbols. Each stock array should contain exactly twenty prices.