Introduction - If you have any usage issues, please Google them yourself
C# draw a histogram pie graphs, histograms single data before taking the two, the first name of each column as the horizontal axis, and the second as a value. Multiple data as a histogram of the first horizontal parent name, and then take a turn in front of each column name as the horizontal axis, the latter as a value. Take the first graph as the horizontal axis of each column name, each column represents a backward curve, the column named curve name. On Table [0] operation, before taking the two, the first column name, the second column is the value