How would I create a validation rule to ensure Value2 has the same value as Value1? If a validation rule is not the best method then what would be better? I could have the TextChanged event handle this, but I'm wondering if there is something more elegant.How would I create a validation rule to ensure
阅读背景：
如何创建WPF验证规则以确保两个文本字段具有相同的值？
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