Excel Visual Basic Variables, Part 2: Declaring and Naming Variables, Scope and Lifetime
Subscribe to continue reading
Subscribe to get access to the rest of this post and other subscriber-only content.
Subscribe to get access to the rest of this post and other subscriber-only content.
Windows stores program settings in the Registry, a Windows internal database. You can use this to remember previous user choices and use them as defaults the next time. We typically remember window positions, file paths, and other settings with the Registry. These three commands work with items stored in the Registry: SaveSetting appname, section, key,…
You can use Excel Visual Basic to read and write text files (Sequential and Random file access). But we will not touch on text files in this post. Rather, we will look at how to save and open Excel files using Excel code, plus a few valuable functions: The bigger examples below are in the…
A Macro is a computer program that can duplicate actions you take in a spreadsheet. Macros perform key tasks faster. They can have a short-cut key combination to run them easily. Creating Excel and Word Macros is easier than most other methods of programming. You simply record the actions you took in the program. You…
Before Excel 2003, you could get a complete list of Visual Basic Functions by looking in Visual Basic Help > Contents > Functions. In Excel 2010, entering “Functions” into the Help Search box produces nothing useful. Using a specific category, e.g. “Math Functions”, may be more productive. Please be aware of what references to “Excel…
The easiest way to create a macro is: The instructions below are for Excel. Word is similar, but has its own quirks (and no “Absolute or Relative”). If you want to look at programming basics first, see this previous post. 1. Recording a Macro Absolute or Relative What does that mean? When you record Absolute,…
The Manning formula for open-channel flow is: whereV= Velocityn = Manning’s “n”,r = Hydraulic radius = area / wetted perimeter = b*y / (2*y + b) for a rectangular channel (where y = depth and b = width), ands = slope of channel (m/m). Discharge Q = V*A = V*b*y. We cannot solve this…