Ejaz,
# 1 : i need 4 y-axis in 2 charts, and display x-axis
with the same,
We suggest you to add multiple axis using ChartAxes tag and
map the required axis name in series. We have attached modified sample for your
reference.
Sample : https://www.syncfusion.com/downloads/support/directtrac/general/ze/RNMulAxis583253478.zip
# 2 : When i add a point the y-axis should not move
We suggest you to specify Minimum and Maximum
value for required y axis, so that range won’t be changed even while performing
live update on data.
# 3 : I need to export whole charts at once in single
pdf.
We have support to export support for chart and range
navigator control separately. To export as single PDF file, please use
StockChart to export chart along with range navigator. Please check with below
documentation links.
https://blazor.syncfusion.com/documentation/chart/chart-print#export
https://blazor.syncfusion.com/documentation/stock-chart/export-print
Please revert us if you have any concerns.