TreeListDataColumn.FieldName Property

Gets or sets the name of the database field assigned to the current column.

Namespace: DevExpress.Web.ASPxTreeList

Assembly: DevExpress.Web.ASPxTreeList.v20.2.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue("")]
public virtual string FieldName { get; set; }

VB.NET

<DefaultValue("")>
Public Overridable Property FieldName As String

Property Value

Type	Default	Description
String	String.Empty	A String value that specifies the name of a data field.

Remarks

To make a column unbound, set the FieldName property to a unique value. Note that the FieldName should not refer to any field in ASPxTreeList’s data source.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the FieldName property.

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-display-an-image-based-on-a-cell-value-e1014/CS/ImageForValue/Default.aspx.cs#L35

protected void ASPxTreeList1_HtmlDataCellPrepared(object sender, TreeListHtmlDataCellEventArgs e) {
    if(e.Column.FieldName == "Status") {
        string fileName = string.Empty;

how-to-reload-grid-data-when-navigating-the-treelist-e934/CS/SyncWithGridOnUpdatePanel/Default.aspx.cs#L29

DevExpress.Web.ASPxTreeList.TreeListDataColumn col = new DevExpress.Web.ASPxTreeList.TreeListDataColumn();
col.FieldName = "Name";
ASPxTreeList1.Columns.Add(col);

multi-node-editing-via-a-datacell-template-e1314/CS/WebSite/Default.aspx.cs#L43

ASPxTextBox tb = (ASPxTextBox)tree.FindDataCellTemplateControl(node.Key, dc, "editor");
if (!tb.Text.Equals(node.GetValue(dc.FieldName)))
    isModified = true;

VB.NET

how-to-display-an-image-based-on-a-cell-value-e1014/VB/ImageForValue/Default.aspx.vb#L37

Protected Sub ASPxTreeList1_HtmlDataCellPrepared(ByVal sender As Object, ByVal e As TreeListHtmlDataCellEventArgs)
    If e.Column.FieldName = "Status" Then
        Dim fileName As String = String.Empty

how-to-reload-grid-data-when-navigating-the-treelist-e934/VB/SyncWithGridOnUpdatePanel/Default.aspx.vb#L31

Dim col As New DevExpress.Web.ASPxTreeList.TreeListDataColumn()
col.FieldName = "Name"
ASPxTreeList1.Columns.Add(col)

multi-node-editing-via-a-datacell-template-e1314/VB/WebSite/Default.aspx.vb#L38

Dim tb As ASPxTextBox = CType(tree.FindDataCellTemplateControl(node.Key, dc, "editor"), ASPxTextBox)
If (Not tb.Text.Equals(node.GetValue(dc.FieldName))) Then
    isModified = True