GridViewDataColumn.FieldName Property

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

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.2.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 specify the text which is displayed within the column’s header, use the Caption property.

It is not allowed to set the FieldName property of several columns to the same data source’s field. The FieldName property should be set to a unique value.

For unbound columns, the FieldName should not refer to any field in ASPxGridView’s data source. Refer to the Unbound Columns topic for more information.

The example below demonstrates how to specify the display text for a cell:

ASPX

<dx:ASPxGridView ID="grid" ClientInstanceName="grid" runat="server" KeyFieldName="ID" Width="100%" 
    OnCustomColumnDisplayText="grid_CustomColumnDisplayText">
    <Columns>
        <dx:GridViewDataTextColumn FieldName="From" Width="200px" />
        <dx:GridViewDataTextColumn FieldName="Subject" />
        <dx:GridViewDataDateColumn FieldName="Sent" Width="100px" />
        <dx:GridViewDataCheckColumn Caption="Attachment?" FieldName="HasAttachment" Width="100px" />
        <dx:GridViewDataTextColumn FieldName="Size" Width="80px" />
    </Columns>
</dx:ASPxGridView>

C#

protected void grid_CustomColumnDisplayText(object sender, ASPxGridViewColumnDisplayTextEventArgs e) {
    if(e.Column.FieldName == "Size")
        e.DisplayText = Utils.FormatSize(e.Value);
}

Run Demo: ASPxGridView - Large Database

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#

asp-net-web-forms-grid-create-report-based-on-grid-layout/CS/WebApplication1/ReportHelper.cs#L70

label.SizeF = ((XRTableCell)detailsInfo[col]).SizeF;
label.DataBindings.Add("Text", null, ((GridViewDataColumn)col).FieldName);
label.Summary = new XRSummary() { Running = SummaryRunning.Group };

asp-net-web-forms-grid-create-master-detail-grid-at-runtime/CS/MasterDetailGrids/Default.aspx.cs#L171

GridViewDataColumn colProductID = new GridViewDataColumn();
colProductID.FieldName = "ProductID";
colProductID.EditFormSettings.Visible = DevExpress.Utils.DefaultBoolean.False;

asp-net-web-forms-grid-create-hyperlink-column-at-runtime/CS/Default.aspx.cs#L37

GridViewDataTextColumn colID = new GridViewDataTextColumn();
colID.FieldName = "ID";
ASPxGridView1.Columns.Add(colID);

asp-net-web-forms-grid-set-edit-form-values/CS/Solution/ClientSide.aspx.cs#L9

protected void grdProducts_CustomUnboundColumnData(object sender, DevExpress.Web.ASPxGridViewColumnDataEventArgs e) {
    if (e.Column.FieldName == "Total") {
        decimal price = (decimal)e.GetListSourceFieldValue("UnitPrice");

asp-net-web-forms-grid-initialize-editor-conditionally/CS/WebApplication_Grid/CustomEditItem.aspx.cs#L39

if (e.Column.FieldName == "DataValue") {
    switch (dataType) {

VB.NET

asp-net-web-forms-grid-create-report-based-on-grid-layout/VB/WebApplication1/ReportHelper.vb#L72

label.SizeF = DirectCast(detailsInfo(col), XRTableCell).SizeF
label.DataBindings.Add("Text", Nothing, CType(col, GridViewDataColumn).FieldName)
label.Summary = New XRSummary() With {.Running = SummaryRunning.Group}

asp-net-web-forms-grid-create-master-detail-grid-at-runtime/VB/MasterDetailGrids/Default.aspx.vb#L175

Dim colProductID As New GridViewDataColumn()
colProductID.FieldName = "ProductID"
colProductID.EditFormSettings.Visible = DevExpress.Utils.DefaultBoolean.False

asp-net-web-forms-grid-create-hyperlink-column-at-runtime/VB/Default.aspx.vb#L39

Dim colID As New GridViewDataTextColumn()
colID.FieldName = "ID"
ASPxGridView1.Columns.Add(colID)

asp-net-web-forms-grid-set-edit-form-values/VB/Solution/ClientSide.aspx.vb#L12

Protected Sub grdProducts_CustomUnboundColumnData(ByVal sender As Object, ByVal e As DevExpress.Web.ASPxGridViewColumnDataEventArgs)
    If Equals(e.Column.FieldName, "Total") Then
        Dim price As Decimal = CDec(e.GetListSourceFieldValue("UnitPrice"))

asp-net-web-forms-grid-initialize-editor-conditionally/VB/WebApplication_Grid/CustomEditItem.aspx.vb#L37

If e.Column.FieldName = "DataValue" Then
    Select Case dataType