SnapDocument.BeforeInsertSnListColumns Event

Occurs before a new set of columns is created.

Namespace: DevExpress.Snap.Core.API

Assembly: DevExpress.Snap.v18.1.Core.dll

Declaration

C#

event BeforeInsertSnListColumnsEventHandler BeforeInsertSnListColumns

VB.NET

Event BeforeInsertSnListColumns As BeforeInsertSnListColumnsEventHandler

Event Data

The BeforeInsertSnListColumns event's data class is BeforeInsertSnListColumnsEventArgs. The following properties provide information specific to this event:

Property	Description
DataFields	Specifies the data added to the inserted list.
Target	Provides access to the target list into which an inserted list is placed.
TargetColumnIndex	Specifies the index of a target column, to which an inserted list is placed.

Remarks

Handle the BeforeInsertSnListColumns event to change the layout of inserted columns, or to change the position of the column in the target list.

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the BeforeInsertSnListColumns event.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-use-snapdocument-events-to-customize-the-default-templates-of-snap-lists-and-columns-e4782/CS/Snap_Events/Form1.cs#L95

document.PrepareSnList += document_PrepareSnList;
document.BeforeInsertSnListColumns += document_BeforeInsertSnListColumns;
document.AfterInsertSnListColumns += document_AfterInsertSnListColumns;

VB.NET

how-to-use-snapdocument-events-to-customize-the-default-templates-of-snap-lists-and-columns-e4782/VB/Snap_Events/Form1.vb#L97

AddHandler document.PrepareSnList, AddressOf document_PrepareSnList
AddHandler document.BeforeInsertSnListColumns, AddressOf document_BeforeInsertSnListColumns
AddHandler document.AfterInsertSnListColumns, AddressOf document_AfterInsertSnListColumns