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Building Real-Life Applications with Blazor WebAssembly

Adding a Parameter to a Component

Explore how to add parameters to Blazor components to control their behavior dynamically. This lesson guides you through defining parameters using the Parameter attribute, updating methods to use these parameters, and rendering multiple component instances with different values to build interactive web apps with Blazor WebAssembly.

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Most components require parameters. To add a parameter to a component, use the Parameter attribute. We will add a parameter to specify the increment used by the IncrementCount method. We do this as follows:

  1. Return to Visual Studio.
  2. Open the Pages\Counter.razor file.
  3. Add the following code to the top of the code block to define the new parameter:
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