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Razor C# Loops

Loops in Razor allow you to perform repetitive tasks in your server-side logic. Razor supports all C# loop structures, including for, foreach, while, and do-while, enabling you to iterate through collections or execute code multiple times.

Key Topics

For Loop

Example

@{
    for (int i = 1; i <= 5; i++)
    {
        <p>Iteration @i</p>
    }
}

Explanation: This example demonstrates the use of a for loop to iterate through numbers 1 to 5, dynamically generating a paragraph for each iteration.

Foreach Loop

Example

@{
    var fruits = new[] { "Apple", "Banana", "Cherry" };
    foreach (var fruit in fruits)
    {
        <li>@fruit</li>
    }
}

Explanation: The foreach loop iterates through a collection, such as an array, and dynamically renders a list item for each element.

While Loop

Example

@{
    int count = 1;
    while (count <= 3)
    {
        <p>Count: @count</p>
        count++;
    }
}

Explanation: The while loop continues to execute as long as the condition is true. This example dynamically renders the count until it reaches 3.

Key Takeaways

  • Loops in Razor follow standard C# syntax.
  • Use for loops for indexed iterations and foreach for collections.
  • The while loop executes as long as its condition remains true.
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