SaveChartLayoutEventArgs Class
Provides data for the ASPxChartDesigner.SaveChartLayout event.
Namespace: DevExpress.XtraCharts.Web.Designer
Assembly: DevExpress.XtraCharts.v22.1.Web.dll
NuGet Package: DevExpress.Web.Visualization
Declaration
Remarks
The SaveChartLayoutEventArgs class provides properties that identify the chart elements under the hit test point, and their settings. Instances of the SaveChartLayoutEventArgs class with appropriate settings are automatically created and passed to the corresponding event handlers.
Example
To invoke the Client Chart Designer to customize a chart, add an ASPxChartDesigner instance to a Web Form and call the ASPxChartDesigner.OpenChart method of the Designer with the chart control specified as a method parameter.
<head runat="server">
<title>
Client Chart Designer Sample
</title>
<style>
.center {
margin: 0 auto
}
.top-margin {
margin-top: 16px
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<dx:ASPxCallbackPanel
ID="ASPxCallbackPanel1"
runat="server"
Width="960px"
CssClass="center">
<PanelCollection>
<dx:PanelContent>
<dxchartsui:WebChartControl
ID="chart"
runat="server"
CrosshairEnabled="True"
Height="540px"
Width="960"
PaletteName="Office 2013"
SelectionMode="Single">
<titles>
<cc1:ChartTitle Text="Product Prices Comparison" />
</titles>
</dxchartsui:WebChartControl>
<asp:Button
ID="btnRunDesigner"
runat="server"
CssClass="top-margin"
Text="Run Client Chart Designer"
OnClick="btnRunDesigner_Click"/>
</dx:PanelContent>
</PanelCollection>
</dx:ASPxCallbackPanel>
</div>
</form>
</body>
</html>
<dxchartdesigner:ASPxChartDesigner ID="chartDesigner" runat="server" OnSaveChartLayout="chartDesigner_SaveChartLayout"></dxchartdesigner:ASPxChartDesigner>
using System;
using System.Linq;
namespace ClientChartDesignerSample {
public partial class MainPage : System.Web.UI.Page {
void LoadData() {
using (NWindEntities dbContext = new NWindEntities()) {
chart.DataSource = (from products
in dbContext.Products
select products).ToList();
}
}
protected void Page_Load(object sender, EventArgs e) {
if (!IsPostBack) {
SessionHelper.LoadChart(chart, Session);
LoadData();
this.chart.DataBind();
}
}
protected void btnRunDesigner_Click(object sender, EventArgs e) {
SessionHelper.SaveChart(chart, Session);
Response.Redirect("~/ChartDesignerPage.aspx");
}
}
}
using System;
using System.Collections.Generic;
using System.Web.UI.WebControls;
using DevExpress.Web;
using DevExpress.XtraCharts.Web;
using DevExpress.XtraCharts.Web.Designer;
namespace ClientChartDesignerSample {
public partial class ChartDesignerPage : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
if (!IsPostBack) {
WebChartControl chart = new WebChartControl {
Width = (Unit)400,
Height = (Unit)225,
DataSource = new List<Product>()
};
SessionHelper.LoadChart(chart, Session);
this.chartDesigner.OpenChart(chart);
}
}
protected void chartDesigner_SaveChartLayout(object sender, SaveChartLayoutEventArgs e) {
SessionHelper.SaveChartLayout(e.ChartLayoutXml, Session);
ASPxWebControl.RedirectOnCallback("~/MainPage.aspx");
}
}
}
using System;
using System.Web.SessionState;
using DevExpress.XtraCharts;
using DevExpress.XtraCharts.Web;
namespace ClientChartDesignerSample {
public static class SessionHelper {
const string chartLayoutName = "ChartLayout";
public static void SaveChartLayout(String layoutXml, HttpSessionState session) {
session[chartLayoutName] = layoutXml;
}
public static void SaveChart(WebChartControl chart, HttpSessionState session) {
SaveChartLayout(chart.SaveToXml(), session);
}
public static void LoadChart(WebChartControl chart, HttpSessionState session) {
if (session[chartLayoutName] != null) {
String layoutXml = session[chartLayoutName] as String;
if (layoutXml != null)
chart.LoadFromXml(layoutXml);
}
else
InitSeries(chart);
}
static void InitSeries(WebChartControl chart) {
using (NWindEntities dbContext = new NWindEntities()) {
SideBySideBarSeriesView view = new SideBySideBarSeriesView();
view.FillStyle.FillMode = FillMode.Solid;
Series series = new Series() {
Name = "Product Price",
View = view
};
series.ArgumentDataMember = "ProductName";
series.ValueDataMembers.AddRange(new string[] { "UnitPrice" });
chart.Series.Add(series);
}
}
}
}
See Also