# If and Switch functions in Power Apps

Determines whether any condition in a set is true (**If**) or the result of a formula matches any value in a set (**Switch**) and then returns a result or executes an action.

## Description

The **If** function tests one or more conditions until a **true** result is found. If such a result is found, a corresponding value is returned. If no such result is found, a default value is returned. In either case, the returned value might be a string to show, a formula to evaluate, or another form of result.

The **Switch** function evaluates a formula and determines whether the result matches any value in a sequence that you specify. If a match is found, a corresponding value is returned. If no match is found, a default value is returned. In either case, the returned value might be a string to show, a formula to evaluate, or another form of result.

**If** and **Switch** are very similar, but you should use the best function for your situation:

- Use
**If**to evaluate a single condition. The most common syntax for this function is**If**(*Condition*,*ThenResult*,*DefaultResult*), which provides the common “if … then … else …” pattern seen in other programming tools. - Use
**If**to evaluate multiple unrelated conditions. In Power Apps (unlike Microsoft Excel), you can specify multiple conditions without having to nest**If**formulas. - Use
**Switch**to evaluate a single condition against multiple possible matches. You can also use**If**in this case, but you'd need to repeat the formula for each possible match.

You can use both of these functions in behavior formulas to branch between two or more actions. Only one branch will trigger an action. Conditions and matches are evaluated in order, and they stop if a condition is **true** or a match is found.

*Blank* is returned if no conditions are **true**, no matches are found, and you don't specify a default result.

## Syntax

**If**( *Condition*, *ThenResult* [, *DefaultResult* ] )**If**( *Condition1*, *ThenResult1* [, *Condition2*, *ThenResult2*, ... [ , *DefaultResult* ] ] )

*Condition(s)*- Required. Formula(s) to test for**true**. Such formulas commonly contain comparison operators (such as**<**,**>**, and**=**) and test functions such as**IsBlank**and**IsEmpty**.*ThenResult(s)*- Required. The corresponding value to return for a condition that evaluates to**true**.*DefaultResult*- Optional. The value to return if no condition evaluates to**true**. If you don't specify this argument,*blank*is returned.

**Switch**( *Formula*, *Match1*, *Result1* [, *Match2*, *Result2*, ... [, *DefaultResult* ] ] )

*Formula*- Required. Formula to evaluate for matches. This formula is evaluated only once.*Match(s)*- Required. Values to compare with the result from*Formula*. If an exact match is found, the corresponding*Result*is returned.*Result(s)*- Required. The corresponding value to return when an exact match is found.*DefaultResult*- Optional. If an exact match isn't found, this value is returned. If you don't specify this argument,*blank*is returned.

## Examples

### Values in formulas

In the following examples, a **Slider** control (named **Slider1**) has a value of **25**.

Formula | Description | Result |
---|---|---|

If( Slider1.Value = 25, "Result1" ) |
The condition is true, and the corresponding result is returned. |
"Result1" |

If( Slider1.Value = 25, "Result1", "Result2" ) |
The condition is true, and the corresponding result is returned. |
"Result1" |

If( Slider1.Value > 1000, "Result1" ) |
The condition is false, and no DefaultResult was provided. |
blank |

If( Slider1.Value > 1000, "Result1", "Result2" ) |
The condition is false, a DefaultResult was provided, and it's returned. |
"Result2" |

If( Slider1.Value = 25, "Result1", Slider1.Value > 0, "Result2" ) |
The first condition is true, and the corresponding result is returned. The second condition is also true, but it isn't evaluated because it appears later in the argument list than a condition that evaluates to true. |
"Result1" |

If( IsBlank( Slider1.Value ), "Result1", IsNumeric( Slider1.Value ), "Result2" ) |
The first condition is false because the slider isn't blank. The second condition is true because the slider's value is a number, and the corresponding result is returned. |
"Result2" |

If( Slider1.Value > 1000, "Result1", Slider1.Value > 50, "Result2", "Result3") |
Both the first and second conditions are false, a DefaultResult was provided, and it's returned. |
"Result3" |

Switch( Slider1.Value, 25, "Result1" ) |
The slider's value matches the first value to be checked, and the corresponding result is returned. | "Result1" |

Switch( Slider1.Value, 20, "Result1", 25, "Result2", 30, "Result3" ) |
The slider's value matches the second value to be checked, and the corresponding result is returned. | "Result2" |

Switch( Slider1.Value, 20, "Result1", 10, "Result2", 0, "Result3", "DefaultResult" ) |
The slider's value doesn't match any value to be checked. A DefaultResult was provided, so it's returned. |
"DefaultResult" |

### Branching in behavior formulas

In these examples, a **Text input** control named **FirstName** has the value "John" typed into it.

Formula | Description | Result |
---|---|---|

If( ! IsBlank( FirstName.Text ), Navigate( Screen1, ScreenTransition.None ) ) |
The condition is true, so the Navigate function runs. You can use the IsBlank function to test whether a required form field has been filled in. If FirstName were blank, this formula would have no effect. |
trueThe display is changed to Screen1. |

If( IsBlank( FirstName.Text ), Navigate( Screen1, ScreenTransition.None ), Back() ) |
Without the ! operator, the condition is false, so the Navigate function doesn't run. The Back function was provided as a DefaultResult, so it runs. |
trueThe display goes back to the screen that was previously shown. |

Switch( FirstName.Text, "Carlos", Navigate( Screen1, ScreenTransition.None ), "Kirstin", Navigate( Screen2, ScreenTransition.None ), "John", Navigate( Screen3, ScreenTransition.None ) ) |
The value of FirstName.Text is compared against "Carlos", "Kirstin", and "John" in that order. A match is found with "John", so the app navigates to Screen3. |
trueThe display is changed to Screen3. |

### Step by step

Add a

**Text input**control, and name it**Text1**if it doesn't have that name by default.In

**Text1**, type**30**.Add a

**Label**control, and set its**Text**property to this formula:

**If( Value(Text1.Text) < 20, "Order MANY more!", Value(Text1.Text) < 40, "Order more!", Text1.Text )**The

**Label**control shows**Order more!**because the value of**Text1**is more than 20 but less than 40.In

**Text1**, type**15**.The

**Label**control shows**Order MANY more!**because the value of**Text1**is less than 20.In

**Text1**, type**50**.The

**Label**control shows the value that you typed because it's more than 40.

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