VS2015能否在无断点调试时实现变量监控？

Great question—let’s dig into how you can monitor variables in Visual Studio 2015 without relying on traditional breakpoints.

First off, let’s get the basics out of the way: by default, VS2015’s standard debug windows (Watch, Autos, Locals) do need your program to enter a break state to read variable values from memory. That usually means setting a breakpoint. But there are workarounds—both built into VS and via extensions—that let you track variables without pausing your code cold.

一、原生VS2015功能：Tracepoints（跟踪点） #

One of the most useful built-in tricks is Tracepoints. Think of these as "breakpoints that don’t break"—they log variable values to the Output window without halting your program. Here’s how to use them:

• Right-click the gutter next to the line of code you care about, then select Insert Tracepoint.
• In the pop-up window, input the variable you want to monitor—for example, OrderTotal = {OrderTotal} to show both the variable name and its value.
• You can add conditions (like only logging when OrderTotal > 1000) and ensure Continue execution is checked (this is enabled by default, so your program keeps running).
• When you run your code, the variable values will stream into the Output window in real time—no interruptions required.

This isn’t a full replacement for the Watch window, but it’s perfect for tracking variable changes without stopping your program’s flow.

二、代码触发软中断（伪无断点） #

If you still want to use the full Watch/Locals window experience but don’t want to manually set breakpoints, you can use a code-based soft break:

using System.Diagnostics;

// ... your code here
Debugger.Break(); // This triggers an automatic break state when executed

When the code hits this line, VS will pause execution just like a regular breakpoint, letting you use all the standard variable monitoring tools. You can easily comment this line out when you’re done, making it a flexible option for temporary debugging.

三、第三方扩展推荐 #

If you want more robust, real-time monitoring without breakpoints, these extensions work well with VS2015:

• OzCode: This popular debugging extension offers a Live Watch feature that lets you view variable values as your program runs, no break state needed. It also adds visualizations for complex objects (like collections or custom classes) to make monitoring easier.
• ReSharper: JetBrains’ ReSharper enhances VS’s debugging tools with better visualizers for variables and objects. While it still uses break states for full Watch window access, its conditional logging and smart inspection tools pair great with Tracepoints for non-intrusive monitoring.

Note that some advanced features of these extensions may require a paid license, but free trials are usually available to test out the core monitoring capabilities.

内容的提问来源于stack exchange，提问作者Msorich