ASPxDiagram.Export() Method

Exports the diagram data in JSON format.

Namespace: DevExpress.Web.ASPxDiagram

Assembly: DevExpress.Web.ASPxDiagram.v19.2.dll

Declaration

C#

public string Export()

VB.NET

Public Function Export As String

Returns

Type	Description
String	The diagram data in JSON format.

Remarks

The Export method allows you to save information about the diagram’s layout, appearance, and shape positions.

Use the Import(String) method to load this data to the ASPxDiagram control.

ASPX

<dx:ASPxDiagram ID="Diagram" runat="server" Width="100%" Height="600px"/>
<dx:ASPxButton ID="btnSave" runat="server" Text="Save" OnClick="btnSave_Click"/>
<dx:ASPxButton ID="btnLoad" runat="server" Text="Load" OnClick="btnLoad_Click" />

C#

using System.IO;
...
protected void btnSave_Click(object sender, EventArgs e) {
    using (StreamWriter diagramData = File.CreateText(MapPath(diagramDataPath))) {
        diagramData.WriteLine(Diagram.Export());
    }
}
protected void btnLoad_Click(object sender, EventArgs e) {
    Diagram.Import(File.ReadAllText(MapPath(diagramDataPath)));
}

VB.NET

Imports System.IO
...
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As EventArgs)
    Using diagramData As StreamWriter = File.CreateText(MapPath(diagramDataPath))
        diagramData.WriteLine(Diagram.Export())
    End Using
End Sub

Protected Sub btnLoad_Click(ByVal sender As Object, ByVal e As EventArgs)
    Diagram.Import(File.ReadAllText(MapPath(diagramDataPath)))
End Sub

Use the ASPxClientDiagram.Export and ASPxClientDiagram.Import methods to save and load the diagram data on the client side.

Note

The ASPxDiagram stores an opened diagram’s data in its own text format. Do not modify the data the Export method returns because a modified document can be loaded incorrectly.