Skip to main content

ASPxCardView.SummaryDisplayText Event

Enables custom display text to be provided for any summary value.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v22.2.dll

NuGet Package: DevExpress.Web


public event ASPxCardViewSummaryDisplayTextEventHandler SummaryDisplayText

Event Data

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

Property Description
EncodeHtml Gets or sets a value that specifies whether the summary display text keeps any of its values that are HTML as HTML, or instead, strips out the HTML markers. Inherited from ASPxGridSummaryDisplayTextEventArgs.
Item Gets a summary item whose value is being processed.
Text Gets or sets the display text for the summary value currently being processed. Inherited from ASPxGridSummaryDisplayTextEventArgs.
Value Gets the processed summary value. Inherited from ASPxGridSummaryDisplayTextEventArgs.


The SummaryDisplayText event is raised for total summaries.

Initialy, the event parameter’s ASPxGridSummaryDisplayTextEventArgs.Text property contains the text currently displayed in the summary panel. To provide custom text, assign it to this property.


The following example calculates a summary in the CategoryID column based on the value in the ASPxSpinEdit below it.

When an end user changes a spin editor value, the editor sends a custom callback to the server in the client-side NumberChanged event handler. In the server-side SummaryDisplayText event handler, the grid calculates the summary value and sets it to the e.Text parameter.

View Example

<head runat="server">
    <form id="form1" runat="server">
        <dx:ASPxCardView ID="ASPxCardView1" KeyFieldName="CategoryID" OnSummaryDisplayText="ASPxCardView1_SummaryDisplayText" AutoGenerateColumns="False" ClientInstanceName="grid" DataSourceID="AccessDataSource1" runat="server">
            <Settings ShowSummaryPanel="True" />
                <dx:CardViewTextColumn FieldName="CategoryID" ReadOnly="True" VisibleIndex="0">
                <dx:CardViewTextColumn FieldName="CategoryName" VisibleIndex="1">
                <dx:CardViewTextColumn FieldName="Description" VisibleIndex="2">
                <dx:ASPxCardViewSummaryItem FieldName="CategoryID" SummaryType="Sum" />
        <br />
        <dx:ASPxSpinEdit ID="ASPxSpinEdit1" runat="server" Number="0" Height="21">
        <ClientSideEvents NumberChanged="function(s, e) {
        }" />

    <asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/nwind.mdb"
        SelectCommand="SELECT * FROM [Categories]"></asp:AccessDataSource>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

public partial class _Default : System.Web.UI.Page
    protected void Page_Load(object sender, EventArgs e) {

    protected void ASPxCardView1_SummaryDisplayText(object sender, DevExpress.Web.ASPxCardViewSummaryDisplayTextEventArgs e) {
        if (e.Item.FieldName == "CategoryID")
            e.Text = string.Format("Sum = {0}", Convert.ToDouble(e.Value) * Convert.ToDouble(ASPxSpinEdit1.Value));
See Also