If necessary, you can change the default shortcuts on the Keymap page of JetBrains Rider settings Ctrl+Alt+S (look for the Choose Lookup Item and Choose Lookup Item Replace actions). When you use code completion over existing code items, you can either insert the selected completion suggestion before the existing item by pressing Enter or replace the existing identifier with the selected suggestion by pressing Tab. Select a suggestion from the list and press Enter or start typing the initial letters of the identifier or its CamelHumps abbreviation to narrow down the list of suggestions. Place the caret at the position where you're going to type your code. In addition to that, in object initializers, Type-Matching Completion suggests fields/properties that were not yet assigned a value.
Type-Matching Completion can also suggest creating anonymous delegates, lambda expressions, and regular methods, as well as local variables for out parameters. If several return types are possible, JetBrains Rider detects the most recently used symbol of an applicable type and automatically selects it in the lookup list. It works anywhere as long as JetBrains Rider can determine the expected type of the expression, for example, right-hand sides of assignments, variable initializers, or return statements. This command filters the list of types, methods, and variables to match the expected type of expression.
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