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Today, let's dive into the somewhat unpredictable and potentially risky behavior of the "Using Declaration" feature. As always, no boring long introduction paragraphs; let's get straight to the point! C# 8.0 What is Using Declaration? In C# 7.0 we did this: public void SuperMethod { using ) { // use myVariable } // myVariable will be disposed here } Since C# 8.
Dispose; } While intuition and common sense might lead us to expect this, the reality is quite different. To understand what happens, let's check the " " and IL for the first code snippet that we started with: Low-Level C# Now we can see what is wrong with this lovely Using Declaration construction: if we use an object initializer on our instance, the values will be assigned to the properties the try-catch block.
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