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Apps User Guide
Last updated Feb 21, 2024

Edit Grid

The Edit Grid control allows you to list, edit, paginate, or search tabular records.

General

  • Data source - The source of data you want to edit inside the grid. You must reference an object of type AppsDataSource, such as a Data Service entity, or an Orchestrator process.

    Once you fetch the data source, the grid automatically detects the data columns. Clicking the More icon of each column navigates you to the following properties:

    • Name - The display name of the column header.

    • Source - The field of the referenced entity.

    • Edit mode view - Determines how to interact with the column:

      Edit mode view option

      Description

      Textbox

      Cells in the column behave as a Textbox control.

      Datepicker

      Cells in the column behave as a Datepicker control.

      Checkbox

      Cells in the column behave as a Checkbox control.

      Dropdown

      Cells in the column behave as a Dropdown control.

      Multi select

      Cells in the column behave as a Multi select control.

    • Hidden - If true, hides the column at runtime.

    • Editable - If false, marks the content of the column as read-only.

  • Add new column - Add new columns to your data by clicking the plus "+" icon.

  • Hidden - If true, hides the control at runtime.

  • Editable - If false, marks the control as read-only.

  • Add rows - If true, allows app users to add new rows at runtime. If false, users cannot add new rows.

  • Delete rows - If true, allows app users to delete rows. If false, users cannot delete rows.

  • Search - If true, exposes a built-in search capability.

Events

  • Row selected - Configure what happens when a row is selected.

  • Row added - Configure what happens when a row is added.

  • Row modified - Configure what happens when a row is modified.

  • Row deleted - Configure what happens when a row is deleted.

Note:

To access the errors in updating, adding, or editing operations, use the following syntax:

<PageName>.<ControlName>.<RuleName>.Error.Message<PageName>.<ControlName>.<RuleName>.Error.Message
For example, MainPage.EmployeeDetailsGrid.UpdateEntityRecord.Error.Message.

Style

  • Control Alignment - By default, inherits the parent alignment. A different alignment other than the parent can be set. To default back to the parent alignment, deselect the overridden options.

    Note: The alignment is dependent on the layout selected for the parent (Vertical vs Horizontal).
  • Background color - The background color for the Grid header and Grid body.

  • Border - The border for the control. Border Thickness, Color, and Radius can be configured.

  • Font - The font attributes for both the Column header and Column body text, such as font family, size, color, or style (Bold, Italic and Underline). By default, the control inherits the font family of the immediate parent container which is indicated by the keyword "Inherited".

  • Margin - The margin of the control. By default, a margin of 4px is set. Top/Bottom and Left/Right margin properties are combined. These properties can be detached using the Link button at the right side of the Margin section.

  • Size - The width and height of the control. By default, the size is set to auto. To set minimum or maximum values, click the three dot icon (...). If the size of the control is smaller than the options, a scroll bar is displayed.

VB properties

  • SelectedItem (T) - references the item currently selected by the app user

  • DataSource (ListSource of T) - references the data available on the control.

  • NewItem (T) - references the item being created by the Add row option. To be used in the Row added event.

  • Hidden (Boolean) - references the Hidden property of the control.

  • Editable (Boolean) - references the Editable property of the control.

  • AddRows (Boolean) - references the Add Rows property of the control.

  • DeleteRows (Boolean) - references the Delete Rows property of the control.

  • Search (Boolean) - references the Search property of the control.

  • RowIndex (Integer) - references the item in column for update and delete operations.

Important:

Use this property for process integration where the entire dataset is in-memory.

Using entities with Edit Grid controls

The following example shows how to bind an entity to an Edit Grid control, then perform CRUD operations using the control and entity-specific rules.

The entity used is called "Employee", and has the following fields:

  • Name

  • Age

  • Date of birth

  • Gender

  • Team

  • Date of Joining

  • IsFullTime

  • Skills

Displaying entity records

  1. Create a new VB app, then add the Employee entity to the app.
  2. Add the Edit Grid control to the app.
  3. In the Data source field of the Edit Grid control, use the Query builder and select the Employee entity. The columns of the control are automatically populated with the fields of the entity.
  4. For every column, make sure that the Edit mode view dropdown is set to the correct data type, as follows:
    OptionDescription

    Date of Birth

    Date Picker

    Age

    Textbox

    Name

    Texbox

    Gender

    Dropdown

    Team

    Dropdown

    Date of Joining

    Date Picker

    IsFullTime

    Checkbox

    Skills

    Multi select

    Gender and Team are entity choices sets. When you select Dropdown in the Edit mode view for these columns, two new properties are displayed: List Source and Column.
  5. To fetch the options in a choice set:
    1. In the List source field, use the following syntax
      GetChoiceSet("Choiceset Name")GetChoiceSet("Choiceset Name")

      For example, for Gender and Team columns, the List source field should have:

      • Gender - GetChoiceSet("Gender")
      • Team - GetChoiceSet("Team")
    2. In the Column field, write "Name".
      docs image

    Skills is an entity choice set that allows multiple selection. When you select Multi select in the Edit mode view for these columns, two new properties are displayed: List Source and Column.

  6. Configure the Skills column as you did for Gender and Team.
  7. Go to the Event tab of the Edit Grid control.
  8. For the Row added event, create the following rule:
    1. Add the Create Entity Record rule.
    2. In the Which entity should the record be created in?, select the Employee entity.
    3. In the Values to set field, update the following:
      • Name property - MainPage.EditGrid.NewItem.Name
      • Date of Joining property - MainPage.EditGrid.NewItem.Dateofjoining
      • Age property - MainPage.EditGrid.NewItem.Age
      • Gender property - MainPage.EditGrid.NewItem.Gender
      • Team property - MainPage.EditGrid.NewItem.Team
      • IsFullTime property - MainPage.EditGrid.NewItem.Isfulltime
      • Skills property - MainPage.EditGrid.NewItem.Skills
  9. For the Row modified event, create the following rule:
    1. Add the Update Entity Record rule.
    2. In the Which entity's record should be updated?, select the Employee entity.
    3. In the Entity record Id, write the following expression:
      MainPage.EditGrid.SelectedItem.IdMainPage.EditGrid.SelectedItem.Id
    4. In the Values to set field, update the following:
      • Name property - MainPage.EditGrid.SelectedItem.Name
      • Date of Joining property - MainPage.EditGrid.SelectedItem.Dateofjoining
      • Age property - MainPage.EditGrid.SelectedItem.Age
      • Gender property - MainPage.EditGrid.SelectedItem.Gender
      • Team property - MainPage.EditGrid.SelectedItem.Team
      • IsFullTime property - MainPage.EditGrid.SelectedItem.Isfulltime
      • Skills property - MainPage.EditGrid.SelectedItem.Skills
  10. For the Row deleted event, create the following rule:
    1. Add the Delete Entity Record rule.
    2. In the Which entity record should be deleted?, select the Employee entity.
    3. In the Entity record Id, write the following expression:
      MainPage.EditGrid.SelectedItem.IdMainPage.EditGrid.SelectedItem.Id
  11. Preview your app and interact with the Edit Grid various capabilities such as pagination, search, add new row, update row, or delete rows.

Using relationships in Edit Grid controls

To use entity fields of type Relationship in an Edit Grid control:

  1. In the Edit mode view field, set the relationship fields as a Dropdown.
  2. In the subsequent List source property, use the follwoing expression:
    Fetch(of <entity_name>)(Nothing, Nothing, Nothing, Nothing, New ExpansionFieldOption(){addExpansionFieldOption("CreatedBy", New String(){"Id","Name"}), addExpansionFieldOption("UpdatedBy", New String(){"Id","Name"})})Fetch(of <entity_name>)(Nothing, Nothing, Nothing, Nothing, New ExpansionFieldOption(){addExpansionFieldOption("CreatedBy", New String(){"Id","Name"}), addExpansionFieldOption("UpdatedBy", New String(){"Id","Name"})})
  3. In the subsequent Column property, write "Name".
  4. In entity-related rules, such as Create, Update, or Delete Entity Records, pass the ID of the relationship field as follows:
    MainPage.EditGrid.SelectedItem.<entity_name>.IdMainPage.EditGrid.SelectedItem.<entity_name>.Id

Converting complex data to AppsDataSource

To convert a data table or a complex data type to a AppsDataSource: save the data table to a variable, then use the .ToListSource method that converts data from data table to AppsDataSource.
  1. Save the data to a variable of type DataTable. For example, name the variable "dt".
  2. In the Data source field of table controls, use the following expression:
    dt.ToListSource()dt.ToListSource()

Generically, complex objects can be converted to AppsDataSource by using the syntax:

Processes.ALLDATATYPES.out_datatable.ToListSource()Processes.ALLDATATYPES.out_datatable.ToListSource()

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