FileManagerFileListDetailsViewSettings.Columns Property

Gets a collection of columns displayed in the ASPxFileManager file list details view.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v19.1.dll

Declaration

C#

public FileManagerDetailsColumnCollection Columns { get; }

VB.NET

Public ReadOnly Property Columns As FileManagerDetailsColumnCollection

Property Value

Type	Description
FileManagerDetailsColumnCollection	A FileManagerDetailsColumnCollection object that is a collection of columns.

Property Paths

You can access this nested property as listed below:

Object Type	Path to Columns
HtmlEditorDocumentSelectorFileListSettings	.DetailsViewSettings.Columns
HtmlEditorFileManagerFileListSettings	.DetailsViewSettings.Columns
FileManagerSettingsFileList	.DetailsViewSettings.Columns
MVCxFileManagerSettingsFileList	.DetailsViewSettings.Columns

Remarks

When the FileManagerSettingsFileList.View property is set to Details, file list displays a grid. Use the Columns property to specify columns displayed in the grid.

The Columns collection can contain objects of the FileManagerDetailsColumn (default columns) and FileManagerDetailsCustomColumn (custom columns) types.

Example

This code sample demonstrates how to populate a file manager custom column with values (file extensions) using the ASPxFileManager.DetailsViewCustomColumnDisplayText

Note

A complete sample project is available at https://github.com/DevExpress-Examples/aspxfilemanager-how-to-implement-a-custom-column-and-provide-it-with-a-custom-header-filter-t220483

WebForm1.aspx (C#)

<dx:ASPxFileManager ID="ASPxFileManager1" runat="server" Width="800px" Height="400px" OnDetailsViewCustomColumnDisplayText="ASPxFileManager1_DetailsViewCustomColumnDisplayText" OnDetailsViewCustomColumnHeaderFilterFillItems="ASPxFileManager1_DetailsViewCustomColumnHeaderFilterFillItems">
    <Settings RootFolder="~\Files\" ThumbnailFolder="~\Thumb\" />
    <SettingsFileList View="Details">
        <DetailsViewSettings>
            <Columns>
                <dx:FileManagerDetailsColumn Caption=" " FileInfoType="Thumbnail" VisibleIndex="0">
                </dx:FileManagerDetailsColumn>
                <dx:FileManagerDetailsColumn Caption="Name" VisibleIndex="1">
                </dx:FileManagerDetailsColumn>
                <dx:FileManagerDetailsCustomColumn Caption="Extension" Name="FileExtension" VisibleIndex="2" ShowHeaderFilterButton="True">
                </dx:FileManagerDetailsCustomColumn>
            </Columns>
        </DetailsViewSettings>
    </SettingsFileList>
</dx:ASPxFileManager>

WebForm1.aspx.cs

protected void ASPxFileManager1_DetailsViewCustomColumnDisplayText(object source, DevExpress.Web.FileManagerDetailsViewCustomColumnDisplayTextEventArgs e) {
    e.DisplayText = e.File.Extension.Remove(0, 1);
}

WebForm1.aspx.vb

Protected Sub ASPxFileManager1_DetailsViewCustomColumnDisplayText(ByVal source As Object, ByVal e As DevExpress.Web.FileManagerDetailsViewCustomColumnDisplayTextEventArgs)
    e.DisplayText = e.File.Extension.Remove(0, 1)
End Sub

WebForm1.aspx (VB.NET)

<dx:ASPxFileManager ID="ASPxFileManager1" runat="server" Width="800px" Height="400px" OnDetailsViewCustomColumnDisplayText="ASPxFileManager1_DetailsViewCustomColumnDisplayText" OnDetailsViewCustomColumnHeaderFilterFillItems="ASPxFileManager1_DetailsViewCustomColumnHeaderFilterFillItems">
    <Settings RootFolder="~\Files\" ThumbnailFolder="~\Thumb\" />
    <SettingsFileList View="Details">
        <DetailsViewSettings>
            <Columns>
                <dx:FileManagerDetailsColumn Caption=" " FileInfoType="Thumbnail" VisibleIndex="0">
                </dx:FileManagerDetailsColumn>
                <dx:FileManagerDetailsColumn Caption="Name" VisibleIndex="1">
                </dx:FileManagerDetailsColumn>
                <dx:FileManagerDetailsCustomColumn Caption="Extension" Name="FileExtension" VisibleIndex="2" ShowHeaderFilterButton="True">
                </dx:FileManagerDetailsCustomColumn>
            </Columns>
        </DetailsViewSettings>
    </SettingsFileList>
</dx:ASPxFileManager>