i need to get data from file "data.txt" and then plot two graph.one graph using the first column and value after 174=XXX, another graph using second column and value 174=XXX. Since my data is very big, so i hv two text box to let user select what data needed to plot in graph.
For example: if value textbox1=3.8566300, textbox2=100.81888000
i need to get data from (3.8566300 -0.0001) to (3.8566300+0.0001)
From (100.81888-0.0001) to (100.81888+0.0001)
and then plot the graph.
can somobody show me the code? how to use the MS chart plot the line graph?
Reply With Quote