The problem was in HtmlInputButton.RenderAttributes().

Before adding the script to the HTML, the number of Validators should
be checked.

svn path=/trunk/mcs/; revision=21119

1 files changed, 13 insertions, 10 deletions

diff --git a/mcs/class/System.Web/System.Web.UI.HtmlControls/HtmlInputButton.cs b/mcs/class/System.Web/System.Web.UI.HtmlControls/HtmlInputButton.cs
index ecd437a237e..7be2fd546b8 100755
--- a/mcs/class/System.Web/System.Web.UI.HtmlControls/HtmlInputButton.cs
+++ b/mcs/class/System.Web/System.Web.UI.HtmlControls/HtmlInputButton.cs
@@ -33,20 +33,23 @@ namespace System.Web.UI.HtmlControls{
 		{

 			if (Page != null && CausesValidation) {

 				string type = Type;

+				Console.WriteLine(type);

 				if (String.Compare (type, "button", true) == 0 || String.Compare (type, "submit", true) == 0) {

 					string script = Page.GetPostBackClientEvent (this, String.Empty);

-					AttributeCollection coll = Attributes;

-					if (coll ["language"] != null)

-						coll.Remove ("language");

-					writer.WriteAttribute ("language", "javascript");

+					if (script != null && Page.Validators.Count > 0){

+						AttributeCollection coll = Attributes;

+						if (coll ["language"] != null)

+							coll.Remove ("language");

+						writer.WriteAttribute ("language", "javascript");

 

-					string onclick;

-					if ((onclick = coll ["onclick"]) != null) {

-						script = onclick + " " + script;

-						coll.Remove ("onclick");

+						string onclick;

+						if ((onclick = coll ["onclick"]) != null) {

+							script = onclick + " " + script;

+							coll.Remove ("onclick");

+						}

+						

+						writer.WriteAttribute ("onclick", script);

 					}

-

-					writer.WriteAttribute ("onclick", script);

 				}

 			}