Class ActionEventArgs<T>

Provides information about the OnActionBegin event when grid action start's. Also, provides information about the OnActionComplete event when grid action completed. Provides information about the OnActionBegin event when a grid action begins and the OnActionComplete event when a grid action is completed.

Inheritance

System.Object

GridEventBaseArgs

ActionEventArgs<T>

Inherited Members

GridEventBaseArgs.PreventRender

Namespace: Syncfusion.Blazor.Grids

Assembly: Syncfusion.Blazor.dll

Syntax

public class ActionEventArgs<T> : GridEventBaseArgs

Type Parameters

Name	Description
T	TValue of the grid component.

Constructors

ActionEventArgs()

Declaration

public ActionEventArgs()

Properties

Action

Gets the CUD (Create, Update, Delete) actions that can be performed when the edit mode is set to Normal or Dialog.

Declaration

public string Action { get; }

Property Value

Type	Description
System.String	The possible values for this property are: AddIndicates that a new record is being added. EditIndicates that an existing record is being edited and saved. DeleteIndicates that an existing record is being deleted. The default value of this property is null.

Cancel

Gets or sets a value indicating whether to cancel the current action.

Declaration

public bool Cancel { get; set; }

Property Value

Type	Description
System.Boolean	The default value is false, If the Cancel property is set to true, the current action will be cancelled.

CheckboxListData

Gets or sets the custom data source for CheckBox and Excel filter.

Declaration

public IEnumerable<object> CheckboxListData { get; set; }

Property Value

Type	Description
System.Collections.Generic.IEnumerable<System.Object>	An IEnumerable collection of objects that serve as the custom data source for the CheckBox and Excel filter types in grid, By default the value is null

Code

Gets the string that identifies the physical key being pressed, while saving the edited record using Enter or Tab keys in Normal edit mode.

Declaration

public string Code { get; set; }

Property Value

Type	Description
System.String	Enter, if the Enter key is used to save the edited record. Tab, if the Tab key is pressed from the last edited cell or the 'Shift-Tab', key is pressed from the first edited cell. By default, the value is set to null.

Remarks

The value of this property is assigned while performing the save operation using Enter or Tab keyboard keys. In this case, RequestType will be 'Save', and the Action will be 'Edit'. If no save operation has been performed, the value of this property will be null.

ColumnName

Gets or sets the Field name associated with the current column based on the current actions like Grouping, Sorting, and Filtering.

Declaration

public string ColumnName { get; set; }

Property Value

Type	Description
System.String	The field name associated with the current column based on the current actions like Grouping, Sorting, and Filtering, for remaining actions the value will be null.

Columns

Gets the System.Collections.Generic.List<> of PredicateModel<T> of the filtered columns.

Declaration

public List<PredicateModel<object>> Columns { get; set; }

Property Value

Type	Description
System.Collections.Generic.List<PredicateModel<System.Object>>	A System.Collections.Generic.List<> of PredicateModel<T> objects representing the filtered columns. When the filter type is Excel or CheckBox, this property will contain the filtered columns. Otherwise, the value of this property will be null.

CurrentFilteringColumn

Gets or sets the Field name of the column that is currently being filtered.

Declaration

public string CurrentFilteringColumn { get; set; }

Property Value

Type	Description
System.String	The field name of the column that is currently being filtered, when Filtering action is perfomed, otherwise the value is null.

CurrentFilterObject

Gets the PredicateModel<T> that is currently filtered.

Declaration

public PredicateModel<object> CurrentFilterObject { get; set; }

Property Value

Type	Description
PredicateModel<System.Object>	When AllowFiltering is true then the value is PredicateModel<T> representing the current filter object, otherwise the value is null.

CurrentPage

Gets or sets the current page number.

Declaration

public int CurrentPage { get; set; }

Property Value

Type	Description
System.Int32	The current page number, The default value is 0.

Data

Gets or sets the data of the grid for the current actions like grouping, filtering, sorting etc...

Declaration

public T Data { get; set; }

Property Value

Type	Description
T	A T object representing the data of the grid.

Direction

Gets the direction of the sorted column.

Declaration

public SortDirection Direction { get; set; }

Property Value

Type
SortDirection

Remarks

The available sort directions are:

• SortDirection.Ascending: Default, sorts records in ascending order.
• SortDirection.Desending: Sorts records in descending order.

EditContext

Gets or sets the current EditContext instance.

Declaration

public EditContext EditContext { get; set; }

Property Value

Type	Description
Microsoft.AspNetCore.Components.Forms.EditContext	An instance of the EditContext class that represents the current edit context. By default, the value is null.

ExcelSearchOperator

Gets or sets the Excel search operator.

Declaration

public Operator ExcelSearchOperator { get; set; }

Property Value

Type	Description
Operator	The Operator enum value that represents the selected search operator.

Remarks

Use this property to get or set the operator that will be used to filter data based on Excel-style search criteria. The available operators are specified by the Operator enum. The default value is None. The available operators are:

• None: No operator is selected. For example, if we set None
• Contains: Checks whether the value contains the specified value. For example, if we set Contains and the search term is "an", then the item would contains "an", columns to be filtered.
• StartsWith: Checks whether the value begins with the specified value. For example, if we set StartsWith and the search term is "an", then the item would startswith "an", columns to be filtered.
• EndsWith: Checks whether the value ends with the specified value. For example, if we set EndsWith and the search term is "an", then the item would endswith "an", columns to be filtered.
• Equal: Checks whether the value is equal to the specified value. For example, if we set Equal and the search term is "an", then the item would equal to "an", columns to be filtered.
• NotEqual: Checks for values not equal to the specified value. For example, if we set NotEqual and the search term is "an", then the item would notequal to "an", columns to be filtered.
• GreaterThan: Checks whether the value is greater than the specified value. For example, if we set GreaterThan and the search term is "10", then the item would greaterthan to "10", columns to be filtered.
• GreaterThanOrEqual: Checks whether a value is greater than or equal to the specified value. For example, if we set GreaterThanOrEqual and the search term is "10", then the item would greaterthan or equal to "10", columns to be filtered.
• LesserThan: Checks whether the value is less than the specified value. For example, if we set LessThan and the search term is "10", then the item would lessthan to "10", columns to be filtered.
• LesserThanOrEqual: Checks whether the value is less than or equal to the specified value. For example, if we set LessThanOrEqual and the search term is "10", then the item would lessthan or equal to "10", columns to be filtered.

FilterChoiceCount

Gets or sets the number of data to take while filtering.

Declaration

public int FilterChoiceCount { get; set; }

Property Value

Type	Description
System.Int32	The number of data to take while filtering, By default the value is 0.

FilterOperators

Gets or sets the custom filter operators.

Declaration

public List<object> FilterOperators { get; set; }

Property Value

Type	Description
System.Collections.Generic.List<System.Object>	A list of objects that represent the custom filter operators. By default, the value is null.

ForeignKeyData

Gets the foreign key column data.

Declaration

public IDictionary<string, IEnumerable<object>> ForeignKeyData { get; }

Property Value

Type	Description
System.Collections.Generic.IDictionary<System.String, System.Collections.Generic.IEnumerable<System.Object>>	A dictionary that represents the foreign key column data. Each key represents a foreign key column name and the value represents the associated data as an enumerable object.

Form

Gets or sets the form element.

Declaration

public DOM Form { get; set; }

Property Value

Type
DOM

FromColumns

Gets the list of columns to be moved while the Reorder action is performed.

Declaration

public List<GridColumn> FromColumns { get; set; }

Property Value

Type	Description
System.Collections.Generic.List<GridColumn>	The list of GridColumn to be moved in the grid when the columns are reordered. If the column is not reordered, then the value of this property will be null.

HiddenColumns

Gets the list of hidden GridColumn which is selected in column chooser.

Declaration

public List<GridColumn> HiddenColumns { get; set; }

Property Value

Type	Description
System.Collections.Generic.List<GridColumn>	A list of columns that represents the hidden columns using the column chooser.

Index

Gets or sets the index of the row to be added.

Declaration

public int Index { get; set; }

Property Value

Type	Description
System.Int32	The index at which the row will be added to the grid. By default, the value is 0.

IsShiftKeyPressed

Gets the boolean value that identifies whether the Shift-Tab key was pressed to save the edited record in Normal edit mode.

Declaration

public bool IsShiftKeyPressed { get; set; }

Property Value

Type	Description
System.Boolean	true if the Shift-Tab key is pressed from the first edited cell, otherwise false.

Remarks

Corresponding value has been assigned while performing the save operation using Shift-Tab keyboard keys, also RequestType will be 'Save' and the Action will be 'Edit'. Otherwise value is null.

MovableForm

Define the movable table form element.

Declaration

public DOM MovableForm { get; set; }

Property Value

Type
DOM

PreventDataClone

Gets or sets whether to clone data object during editing. Set the property when the OnActionBegin event is triggered with RequestType as BeforeBeginEdit.

Declaration

public bool PreventDataClone { get; set; }

Property Value

Type	Description
System.Boolean	A boolean value that indicates whether the data object should be cloned or not when editing begins. The possible values for this property are: trueA clone of the data object will not be created and the original data object is used for editing. falseA clone of the data object will be created and used for editing instead of the original data object. The default value is false.

Remarks

If PreventDataClone is set to true, the edited data will be saved even if the user discards the changes using the Cancel button in the toolbar.

PreventFilterQuery

Gets or Sets whether to prevent the grid column’s default filter query during the API call.

Declaration

public bool PreventFilterQuery { get; set; }

Property Value

Type	Description
System.Boolean	The default value is false.

Remarks

By default, when a filter is applied to a grid column, the grid sends a default filter request with the column name and filter value to the server. In some cases, the default filter request may be too long and exceed URL length limitations, resulting in a long URI exception. This property provides an option to generate a custom filter query for a specific grid column and override the default filter request. To use this property, set it to true in the OnActionBegin event with RequestType as Filtering, and override the ProcessCustomFilterQuery method in the adaptor.

Examples

@implements IDisposable
<SfGrid AllowFiltering="true">
<GridEvents TValue="Book" OnActionBegin="OnActionBegin"/>
<GridForeignColumn @nameof(Book.CustomerId)>
<SfDataManager @ref="DataManagerRef" Url="http://localhost:64956/odata/customers" Adaptor="Adaptors.ODataV4Adaptor"></SfDataManager>
</GridForeignColumn>
</SfGrid>
@code{
SfGrid<Order> Grid;
public SfDataManager DataManagerRef { get; set; }
public static Query CustomQuery = new Query();
protected override void OnAfterRender(bool firstRender)
{
   if (firstRender)
   {
       DataManagerRef.DataAdaptor = new TestOData(DataManagerRef);
   }
   base.OnAfterRender(firstRender);
}
void IDisposable.Dispose()
{        
   CustomQuery = null;
}
public class TestOData : ODataV4Adaptor
{
   public TestOData(DataManager dm) : base(dm)
   {
   }
   public override Query ProcessCustomFilterQuery(Query query)
   {
       return CustomQuery;
   }
}
private void OnActionBegin(Syncfusion.Blazor.Grids.ActionEventArgs<Book> args)
{
   if(args.RequestType == Syncfusion.Blazor.Grids.Action.FilterSearchBegin)
   {
      if(args.SearchString != string.Empty)
      {
          args.SearchString = string.Empty;
          args.CheckboxListData = new List<Book>() { new Book() { Id = Guid.NewGuid(), CustomerId = Guid.NewGuid(), CustomerId1 = Guid.NewGuid(), Active = false, CreditLimit = 20 }};
       }
    }
    if (args.RequestType.Equals(Syncfusion.Blazor.Grids.Action.ClearFiltering))
    {
       CustomQuery = new Query();
    }
    if (args.RequestType == Syncfusion.Blazor.Grids.Action.Filtering)
    {
       if (String.Equals(args.CurrentFilteringColumn, null, StringComparison.OrdinalIgnoreCase) && String.Equals(args.CurrentFilterObject?.Field, "Name", StringComparison.OrdinalIgnoreCase))
       {
           CustomQuery = new Query();
       }
       if (String.Equals(args.CurrentFilteringColumn, nameof(Book.CustomerId), StringComparison.OrdinalIgnoreCase))
       {
       args.PreventFilterQuery = true;
       List<WhereFilter> AndPredicate = new List<WhereFilter>();
       if (args.Columns != null)
       {
           foreach (var col in args.Columns)
           {
               AndPredicate.Add(new WhereFilter() { Field = "Customer/Name", Operator = col.Operator.ToString().ToLower(), value = col.Value, Condition = col.Predicate });
           }
           if (AndPredicate[0].Condition == "and")
           {
               CustomQuery = new Query().Where(new WhereFilter() { Condition = "and", IsComplex = true, predicates = AndPredicate });
           }
           else
           {
               CustomQuery = new Query().Where(new WhereFilter() { Condition = "or", IsComplex = true, predicates = AndPredicate });
           }
       }
       else if (args.Columns == null)
       {
           CustomQuery = new Query().Where("Customer/Name", args.CurrentFilterObject.Operator.ToString().ToLower(), args.CurrentFilterObject.Value, true, true);
       }
       }
   }
}
}

PreviousData

Gets the previous data of the row.

Declaration

public T PreviousData { get; set; }

Property Value

Type	Description
T	An object of type T that contains the previous data of the row. By default, the value is null.

PreviousPage

Gets or sets the previous page number. The default value is 0.

Declaration

public int PreviousPage { get; set; }

Property Value

Type	Description
System.Int32	The page number of the previous page.

PrimaryKeys

Gets or sets the list of the primary key values.

Declaration

public string[] PrimaryKeys { get; set; }

Property Value

Type	Description
System.String[]	A string array that contains the list of primary key values.

PrimaryKeyValue

Gets the primary key value of the GridColumn.

Declaration

public object PrimaryKeyValue { get; set; }

Property Value

Type	Description
System.Object	An object that defines the primary key value of the column when IsPrimaryKey is true, otherwise null.

RequestType

Gets the current Action in the grid like sorting, filtering, grouping, and etc.

Declaration

public Action RequestType { get; }

Property Value

Type	Description
Action	The current action being performed in the grid.

Remarks

The request type assigned to the grid depends on the actions performed. The available request types include:

• Add: When adding a new record in the normal or dialog edit mode enabled DataGrid.
• BeforeBeginEdit: Before the current record becomes editable state in the normal or dialog edit mode enabled DataGrid (occurs only in OnActionBegin event).
• BeginEdit: After the current record becomes editable state in the normal or dialog edit mode enabled DataGrid.
• Save: When saving a record in the normal or dialog edit mode enabled DataGrid.
• Delete: When deleting a record in the normal or dialog edit mode enabled DataGrid.
• Cancel: When canceling an edit operation in the normal or dialog edit mode enabled DataGrid.
• Filtering: When filtering data in the DataGrid.
• FilterBeforeOpen: Before opening the filter dialog for Menu, Excel and CheckBox filter types (occurs only in OnActionBegin event.).
• FilterChoiceRequest: While fetching data to render the filtering checkboxes in Excel or CheckBox filter type.
• FilterAfterOpen: After a filter dialog is opened (occurs only in When a filter dialog is opened. It will assigned only in OnActionComplete event).
• Sorting: When sorting data in the DataGrid.
• Grouping: When grouping data in the DataGrid.
• UnGrouping: When ungrouping a column in the DataGrid.
• Paging: When navigating pages in the DataGrid.
• Reorder: When reordering a column in the DataGrid.
• RowDragAndDrop: When dragging and dropping rows in the DataGrid.

Row

Defines the added row.

Declaration

public DOM Row { get; set; }

Property Value

Type
DOM

RowData

Gets the data of the row.

Declaration

public T RowData { get; set; }

Property Value

Type	Description
T	The data of the row.

RowIndex

Gets the edited rowIndex.

Declaration

public int RowIndex { get; set; }

Property Value

Type	Description
System.Int32	The edited row index. By default, the value is 0.

Remarks

The value of this property can be used to identify which row in a collection or a data source has been edited.

SearchString

Gets or sets the string value to search.

Declaration

public string SearchString { get; set; }

Property Value

Type	Description
System.String	Accepts the string value.

SelectedRow

Gets the index of the currently selected row.

Declaration

public int SelectedRow { get; set; }

Property Value

Type	Description
System.Int32	The index of the currently selected row. By default, the value is 0.

Target

Defines the target for dialog.

Declaration

public DOM Target { get; set; }

Property Value

Type
DOM

ToColumn

Gets the destination columns to place the reordered columns while the Reorder action is performed in the grid.

Declaration

public GridColumn ToColumn { get; set; }

Property Value

Type	Description
GridColumn	The destination GridColumn to place the reordered columns in the grid when the columns are reordered. If the column is not reordered, then the value of this property will be null.

Tr

Defines the selected rows for delete.

Declaration

public List<DOM> Tr { get; set; }

Property Value

Type
System.Collections.Generic.List<DOM>

Type

Gets the type of the event.

Declaration

public string Type { get; set; }

Property Value

Type	Description
System.String	A string value that represents the type of the event.

VisibleColumns

Gets the list of visible columns in the column chooser.

Declaration

public List<GridColumn> VisibleColumns { get; set; }

Property Value

Type	Description
System.Collections.Generic.List<GridColumn>	A list of GridColumn that represents the visible columns in the grid, By default the value is null.