### Introduction

In my last article I discussed how we can use programming statement in Razor. In my last article we declared some variable and perform some calculation on it. In this tutorial I am going to discuss how we can use if-else statement and looping.

### If-else in Razor

As we declared variable using @, similarly we can declare if else statement using @

Note: - I am taking previous article code as an example. If you are directly reading it then kindly go through last article first.

For example:-
In this example I am taking two numbers and calculating the difference between them.

### Code of Index.cshtml

```		```
@{
Layout = null;
}

<!DOCTYPE html>

<html>
<meta name="viewport" content="width=device-width" />
<title>Index</title>
<body>

@{

int num1 = 18, num2 = 107;
int num3;

}

@if (num1 > num2)
{

num3 = num1 - num2;

}
else
{

num3 = num2 - num1;
}

The difference between <b> @num1</b> and <b>@num2</b> is <b>@num3</b>

</body>
</html>
```
```

Now execute this code

```		``` Figure 1
```
```

### Looping in Razor

As we used if else statement in Razor, similarly we can use looping in it.

For example:-
In this example I am printing the counting from 1 to 10 in ul html tag. As we already discussed that we can use html tag with out code.

```		```

Layout = null;
}

<!DOCTYPE html>

<html>
<meta name="viewport" content="width=device-width" />
<title>Index</title>
<body>

Loop Example<br /><br />
printing counting 1 to 10

<br />
@for (int i = 1; i <= 10; i++)
{

<ul>
<li>@i</li>
</ul>
}

</body>
</html>

```
```

The output of this code will be as follows:-

```		``` Figure 2
```
```

Similarly we can use while and do-while loop.