public static void StartMeasureingTool(tkMeasuringType toolType, string filename) { var sf = new Shapefile(); if (!sf.Open(filename)) { MessageBox.Show("Failed to open shapefile"); } else { var ut = new Utils(); axMap1.RemoveAllLayers(); int handle = axMap1.AddLayer(sf, true); axMap1.ZoomToLayer(handle); axMap1.Measuring.MeasuringType = toolType; axMap1.CursorMode = tkCursorMode.cmMeasure; } }