ASPxClientCardView.GetCardKey(visibleIndex) Method
Returns the key value of the specified card.
Declaration
GetCardKey(
visibleIndex: number
): string
Parameters
| Name |
Type |
Description |
| visibleIndex |
number |
An integer value that specifies the card’s visible index.
|
Returns
| Type |
Description |
| string |
A string representing the specified card’s key value. If the index passed via the visibleIndex parameter is wrong, or the ASPxGridBase.KeyFieldName property is not set, null is returned.
|
Note
If multiple key fields are set using the grid’s ASPxGridBase.KeyFieldName property, a specific service vertical bar symbol (the symbol |) is used to separate key field values in the string returned by the GetCardKey method.
Example
This example demonstrates how to use the ASPxDataView control to show the detail ASPxCardView data.See also:T272616: ASPxCardView - How to display master-detail data using two ASPxCardView controls
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using DevExpress.Web;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void ASPxDataView1_CustomCallback(object sender, DevExpress.Web.CallbackEventArgsBase e)
{
Session["CategoryID"] = e.Parameter;
AccessDataSource1.SelectParameters["CategoryID"].DefaultValue = e.Parameter;
(sender as ASPxDataView).DataBind();
}
protected void ASPxDataView1_Load(object sender, EventArgs e)
{
if (Session["CategoryID"] == null) return;
AccessDataSource1.SelectParameters["CategoryID"].DefaultValue = Session["CategoryID"].ToString();
(sender as ASPxDataView).DataBind();
}
}
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<%@ Register Assembly="DevExpress.Web.v15.1, Version=15.1.12.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web" TagPrefix="dx" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function FocusedCardChanged(s, e) {
dataview.PerformCallback(s.GetCardKey(s.GetFocusedCardIndex()));
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<dx:ASPxCardView ID="ASPxCardView1" runat="server" AutoGenerateColumns="False" DataSourceID="AccessDataSource2"
KeyFieldName="CategoryID" ClientInstanceName="cardview">
<SettingsBehavior AllowFocusedCard="True" />
<ClientSideEvents FocusedCardChanged="FocusedCardChanged" />
<Columns>
<dx:CardViewTextColumn FieldName="CategoryID" ReadOnly="True" VisibleIndex="0">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="CategoryName" VisibleIndex="1">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="Description" VisibleIndex="2">
</dx:CardViewTextColumn>
</Columns>
</dx:ASPxCardView>
<asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="~/App_Data/nwind.mdb"
SelectCommand="SELECT [CategoryID], [CategoryName], [Description] FROM [Categories]">
</asp:AccessDataSource>
<dx:ASPxDataView ID="ASPxDataView1" runat="server" SettingsTableLayout-ColumnCount="1" DataSourceID="AccessDataSource1"
SettingsTableLayout-RowsPerPage="1" ClientInstanceName="dataview" OnCustomCallback="ASPxDataView1_CustomCallback"
OnLoad="ASPxDataView1_Load">
<ItemTemplate>
<b>ProductID</b>:
<asp:Label ID="ProductIDLabel" runat="server" Text='<%# Eval("ProductID") %>' />
<br />
<b>ProductName</b>:
<asp:Label ID="ProductNameLabel" runat="server" Text='<%# Eval("ProductName") %>' />
<br />
<b>CategoryID</b>:
<asp:Label ID="CategoryIDLabel" runat="server" Text='<%# Eval("CategoryID") %>' />
<br />
</ItemTemplate>
</dx:ASPxDataView>
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/nwind.mdb"
SelectCommand="SELECT [ProductID], [ProductName], [CategoryID] FROM [Products] WHERE ([CategoryID] = @CategoryID)">
<SelectParameters>
<asp:Parameter DefaultValue="1" Name="CategoryID" Type="Int32" />
</SelectParameters>
</asp:AccessDataSource>
</div>
</form>
</body>
</html>
<%@ Page Language="vb" AutoEventWireup="true" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<%@ Register Assembly="DevExpress.Web.v15.1, Version=15.1.12.0, Culture=neutral, PublicKeyToken=b88d1754d700e49a" Namespace="DevExpress.Web" TagPrefix="dx" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script type="text/javascript">
function FocusedCardChanged(s, e) {
dataview.PerformCallback(s.GetCardKey(s.GetFocusedCardIndex()));
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<dx:ASPxCardView ID="ASPxCardView1" runat="server" AutoGenerateColumns="False" DataSourceID="AccessDataSource2"
KeyFieldName="CategoryID" ClientInstanceName="cardview">
<SettingsBehavior AllowFocusedCard="True" />
<ClientSideEvents FocusedCardChanged="FocusedCardChanged" />
<Columns>
<dx:CardViewTextColumn FieldName="CategoryID" ReadOnly="True" VisibleIndex="0">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="CategoryName" VisibleIndex="1">
</dx:CardViewTextColumn>
<dx:CardViewTextColumn FieldName="Description" VisibleIndex="2">
</dx:CardViewTextColumn>
</Columns>
</dx:ASPxCardView>
<asp:AccessDataSource ID="AccessDataSource2" runat="server" DataFile="~/App_Data/nwind.mdb"
SelectCommand="SELECT [CategoryID], [CategoryName], [Description] FROM [Categories]">
</asp:AccessDataSource>
<dx:ASPxDataView ID="ASPxDataView1" runat="server" SettingsTableLayout-ColumnCount="1" DataSourceID="AccessDataSource1"
SettingsTableLayout-RowsPerPage="1" ClientInstanceName="dataview" OnCustomCallback="ASPxDataView1_CustomCallback"
OnLoad="ASPxDataView1_Load">
<ItemTemplate>
<b>ProductID</b>:
<asp:Label ID="ProductIDLabel" runat="server" Text='<%#Eval("ProductID")%>' />
<br />
<b>ProductName</b>:
<asp:Label ID="ProductNameLabel" runat="server" Text='<%#Eval("ProductName")%>' />
<br />
<b>CategoryID</b>:
<asp:Label ID="CategoryIDLabel" runat="server" Text='<%#Eval("CategoryID")%>' />
<br />
</ItemTemplate>
</dx:ASPxDataView>
<asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/nwind.mdb"
SelectCommand="SELECT [ProductID], [ProductName], [CategoryID] FROM [Products] WHERE ([CategoryID] = @CategoryID)">
<SelectParameters>
<asp:Parameter DefaultValue="1" Name="CategoryID" Type="Int32" />
</SelectParameters>
</asp:AccessDataSource>
</div>
</form>
</body>
</html>
Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Web
Imports System.Web.UI
Imports System.Web.UI.WebControls
Imports DevExpress.Web
Partial Public Class _Default
Inherits System.Web.UI.Page
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
End Sub
Protected Sub ASPxDataView1_CustomCallback(ByVal sender As Object, ByVal e As DevExpress.Web.CallbackEventArgsBase)
Session("CategoryID") = e.Parameter
AccessDataSource1.SelectParameters("CategoryID").DefaultValue = e.Parameter
TryCast(sender, ASPxDataView).DataBind()
End Sub
Protected Sub ASPxDataView1_Load(ByVal sender As Object, ByVal e As EventArgs)
If Session("CategoryID") Is Nothing Then
Return
End If
AccessDataSource1.SelectParameters("CategoryID").DefaultValue = Session("CategoryID").ToString()
TryCast(sender, ASPxDataView).DataBind()
End Sub
End Class
See Also