- Getting Started
- Demo apps
- How To
- Notifications
- Using VB Expressions
- Designing your App
- Events and Rules
- Rule: If-Then-Else
- Rule: Open a Page
- Rule: Open URL
- Rule: Close Pop-Over/Bottom Sheet
- Rule: Log Message
- Rule: Show Message
- Rule: Show/Hide Spinner
- Rule: Set Value
- Rule: Start Process
- Rule: Upload File to Storage Bucket
- Rule: Download File From Storage Bucket
- Rule: Create Entity Record
- Rule: Update Entity Record
- Rule: Delete Entity Record
- Rule: Add to Queue
- Rule: Trigger workflow
- Leveraging RPA in your App
- Leveraging Entities in Your App
- Leveraging Queues in Your App
- Leveraging Media in your app
- Application Lifecycle Management (ALM)
- UiPath First-Party Apps
- Basic Troubleshooting Guide
Apps User Guide
Use variables to store values between pages.
You can set a default value of the variable on page load by using the Set Value rule in the Loaded event of the page.
Apps supports creating variables of the following types:
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AppsFile - file objects specific for Apps, which handles files uploading or downloading.
new AppsFile("https://imageURL.png")new AppsFile("https://imageURL.png") -
Array - arrays of primitive data types or complex objects. For example:
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Array of strings :
New String() {"Hello", "World"} -
Array of AppsFile:
New AppsFile() { new AppsFile("Url1"), new AppsFile("Url2")} -
Array of entity type:
new Customer() { New Customer("1", "Baishali"), New Customer("2", "Viswa"), New Customer("3", "Evan") }new Customer() { New Customer("1", "Baishali"), New Customer("2", "Viswa"), New Customer("3", "Evan") }
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ChoiceSet - stores the choice set data of an entity. For example:
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GetChoiceSet("Team")- returns a ListSource with the choice set values. -
GetChoiceSetValue("Team", 1)- returns the indicated choice set value.
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DataTable - a system data type used to store the value of a process Datatable output argument, or to create a custom Datatable, for example:
BuildDataTable( New DataTable("TestDT"), New DataColumn(){ New DataColumn("Name"), New DataColumn("Age")}, New List(Of Object) From { AddDataRow(New Object(){"Baishali", "30"}), AddDataRow(New Object(){"Viswa", "33"}) }, True )BuildDataTable( New DataTable("TestDT"), New DataColumn(){ New DataColumn("Name"), New DataColumn("Age")}, New List(Of Object) From { AddDataRow(New Object(){"Baishali", "30"}), AddDataRow(New Object(){"Viswa", "33"}) }, True ) -
Date - for example,
New System.DateTime (1993, 5, 31, 12, 35, 0). -
DateOnly - a specific date, without time. For example,
New System.DateOnly (2020, 04, 20). -
DateTimeOffset - a date and time, relative to UTC. This structure includes a DateTime value and an Offset property, that defines the difference between the current DateTimeOffset date and the Coordinated Universal Time (UTC). For example:
new System.DateTimeOffset( new System.DateTime(2023, 5, 15, 7, 0, 0), new System.TimeSpan(-7, 0, 0) ) // output 5/15/2023 7:00:00 AM - 07:00new System.DateTimeOffset( new System.DateTime(2023, 5, 15, 7, 0, 0), new System.TimeSpan(-7, 0, 0) ) // output 5/15/2023 7:00:00 AM - 07:00 -
Decimal number - for example,
88.53. -
Double
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Guid - the unique identifier of an entity.
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Int16
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Int64
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List<T> - for example:
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List of strings :
New List(Of String) From {"string 1", "string 2", "string 3"} -
List of ListPair (for dropdown controls):
New List(Of Customer) From { New Customer("1", "Baishali"), New Customer("2", "Viswa"), New Customer("3", "Evan") }New List(Of Customer) From { New Customer("1", "Baishali"), New Customer("2", "Viswa"), New Customer("3", "Evan") }
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ListSource - used to store the result of a entity query in a variable. You need to use the syntax
ListSource(of <Entity_name>). -
Nullable - used to define a null value. By default, all reference types, such as String, are nullable, but all value types, such as Int32, are not.
Note:By default, primitive data types, except String, are non-nullable. Use this variable type to set them to null. For example, if you create an app variable of type Nullable<Int32>, then you can set the value to "Nothing".
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Object - stores any type.
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Single - Used to store floating-point values that do not require the full data width of Double. The default value is 0.
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Text (String) - for example,
"Hello world" -
True or false (Boolean)
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UInt16 - holds unsigned 16-bit (2-byte) integers ranging in value from 0 through 65,535.
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UInt32 - holds unsigned 32-bit (4-byte) integers ranging in value from 0 through 4,294,967,295.
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UInt64 - holds unsigned 64-bit (8-byte) integers ranging in value from 0 through 18,446,744,073,709,551,615.
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Whole number (Int32) - for example,
88
