Add Xelement to exting element

Question

Hi,

I amd trying to add element to exiting XElement.

Please help me

I am getting below element

<Sequence mc:Ignorable="sap sads" sap:VirtualizedContainerService.HintSize="200,139" mva:VisualBasic.Settings="Assembly references and imported namespaces serialized as XML namespaces"

xmlns="http://schemas.microsoft.com/netfx/2009/xaml/activities"

xmlns:ln="clr-namespace:DGSL.TruBot.ActivityLibrary;assembly=DGSL.TruBot.ActivityLibrary"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:mva="clr-namespace:Microsoft.VisualBasic.Activities;assembly=System.Activities"

xmlns:sads="http://schemas.microsoft.com/netfx/2010/xaml/activities/debugger"

xmlns:sap="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation"

xmlns:scg="clr-namespace:System.Collections.Generic;assembly=mscorlib"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

<sap:WorkflowViewStateService.ViewState>

<scg:Dictionary x:TypeArguments="x:String, x:Object">

<x:Boolean x:Key="IsExpanded">True</x:Boolean>

</scg:Dictionary>

</sap:WorkflowViewStateService.ViewState>

<dta:OpenBrowser BrowserType="CHROME" />

</Sequence>

And I want to add  below element to Sequence,

 

<ln:OpenBrowser Option ="None" TestCode="False"/> 

 

Final output should be 

 

<Sequence mc:Ignorable="sap sads" sap:VirtualizedContainerService.HintSize="200,139" mva:VisualBasic.Settings="Assembly references and imported namespaces serialized as XML namespaces"

xmlns="http://schemas.microsoft.com/netfx/2009/xaml/activities"

xmlns:ln="clr-namespace:DGSL.TruBot.ActivityLibrary;assembly=DGSL.TruBot.ActivityLibrary"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:mva="clr-namespace:Microsoft.VisualBasic.Activities;assembly=System.Activities"

xmlns:sads="http://schemas.microsoft.com/netfx/2010/xaml/activities/debugger"

xmlns:sap="http://schemas.microsoft.com/netfx/2009/xaml/activities/presentation"

xmlns:scg="clr-namespace:System.Collections.Generic;assembly=mscorlib"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

<sap:WorkflowViewStateService.ViewState>

<scg:Dictionary x:TypeArguments="x:String, x:Object">

<x:Boolean x:Key="IsExpanded">True</x:Boolean>

</scg:Dictionary>

</sap:WorkflowViewStateService.ViewState>

<dta:OpenBrowser BrowserType="CHROME" />

<ln:OpenBrowser Option ="None" TestCode="False"/>

</Sequence>

 

 

I have used 

 

 

string DefaultActivityString = "OpenBrowser BrowserType =\"CHROME\"";

xmlnsAliasName ="ln"; 

 

public XElement GetXAML(string xmlnsAliasName)

{

return XElement.Parse(@"<" + xmlnsAliasName + ":" + DefaultActivityString + "/>");

}

however it is giving me error for invalid character 

 

Please help me to fix this.

 

Regards,

Pradeep