[Resolvido] [asp.net] Desativar o botão direito do mouse

Desativando o botão direito do mouse em navegadores, javascript com chamada pelo C# ou VB

OBS.: testado no IE6 e Firefox 1.5

C#

chamada:

protected void Page_Load(object sender, EventArgs e)
{

 if (!IsPostBack)
 {
 this.RetirarPropriedades();
 }
	}

private void RetirarPropriedades()
{
string cstext = @"

 var message='';
 function clickIE() {
 if (document.all){
 return false;
 }
 }
 function clickNS(e) {
 if(document.layers||(document.getElementById&&!document.all)){
 if(e.which==2||e.which==3) {
 return false;
 }
 }
 }
 if (document.layers){
 document.captureEvents(Event.MOUSEDOWN);
 document.onmousedown=clickNS;
 }else{
 document.onmouseup=clickNS;
 document.oncontextmenu=clickIE;
 }
 document.oncontextmenu = new Function('return false');
 ";

 this.Page.ClientScript.RegisterStartupScript(this.GetType(), "RetirarPropriedades", cstext, true);
	}

VB

chamada:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If (Not IsPostBack) Then
Me.RetirarPropriedades()
End If
End Sub
função:

Private Sub RetirarPropriedades()
Dim cstext As String = ""

 cstext &= "var message='';"
 cstext &= " function clickIE() {"
 cstext &= " if (document.all){"
 cstext &= " return false;"
 cstext &= " }"
 cstext &= " }"
 cstext &= " function clickNS(e) {"
 cstext &= " if(document.layers||(document.getElementById&&!document.all)){"
 cstext &= " if(e.which==2||e.which==3) {"
 cstext &= " return false;"
 cstext &= " }"
 cstext &= " }"
 cstext &= " }"
 cstext &= " if (document.layers){"
 cstext &= " document.captureEvents(Event.MOUSEDOWN);"
 cstext &= " document.onmousedown=clickNS;"
 cstext &= " }else{"
 cstext &= " document.onmouseup=clickNS;"
 cstext &= " document.oncontextmenu=clickIE;"
 cstext &= " }"
 cstext &= " document.oncontextmenu = new Function('return false');	"

 Me.Page.ClientScript.RegisterStartupScript(Me.GetType, "RetirarPropriedades", cstext, True)
	End Sub  

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