Hi Alex,
To achieve the requirement I think it would be better to use JavaScript. I
wrote a sample here that demonstrates how to do this:
Default.aspx:
<form id="form1" runat="server" defaultbutton="Button1">
<asp:Button ID="Button1" runat="server" Text="Button" />
<uc1:WebUserControl1 ID="WebUserControl11" runat="server" />
<uc2:WebUserControl2 ID="WebUserControl21" runat="server" />
</form>
WebUserControl1.ascx:
<%@ Control Language="C#" AutoEventWireup="true"
CodeBehind="WebUserControl1.ascx.cs"
Inherits="WebApplication1.WebUserControl1" %>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1" runat="server" Text="Button"
onclick="Button1_Click" />
WebUserControl1.ascx.cs:
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
namespace WebApplication1
{
public partial class WebUserControl1 : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
Page.RegisterStartupScript("samekey",@"<script
type=""text/javascript"">
function Func(event, target) {
var __TestnonMSDOMBrowser =
(window.navigator.appName.toLowerCase().indexOf('explorer') == -1);
if (event.keyCode == 13 && !(event.srcElement &&
(event.srcElement.tagName.toLowerCase() == ""textarea""))) {
var defaultButton;
if (__TestnonMSDOMBrowser)
{
defaultButton = document.getElementById(target);
}
else {
defaultButton = document.all[target];
}
if (defaultButton && typeof(defaultButton.click) != ""undefined"") {
defaultButton.click();
event.cancelBubble = true;
if (event.stopPropagation) event.stopPropagation();
return false;
}
}
return true;
}
</script>");
this.TextBox1.Attributes.Add("onkeypress", "javascript:return
Func(event,'" + this.Button1.ClientID + "')");
}
protected void Button1_Click(object sender, EventArgs e)
{
Page.RegisterStartupScript("key1", "<script
type=\"text/javascript\">alert('from WebUserControl1')</script>");
}
}
}
WebUserControl2.ascx:
<%@ Control Language="C#" AutoEventWireup="true"
CodeBehind="WebUserControl2.ascx.cs"
Inherits="WebApplication1.WebUserControl2" %>
<asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
<asp:Button ID="Button1"
runat="server" Text="Button" onclick="Button1_Click" />
WebUserControl2.ascx.cs:
using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
namespace WebApplication1
{
public partial class WebUserControl2 : System.Web.UI.UserControl
{
protected void Page_Load(object sender, EventArgs e)
{
Page.RegisterStartupScript("samekey", @"<script
type=""text/javascript"">
function Func(event, target) {
var __TestnonMSDOMBrowser =
(window.navigator.appName.toLowerCase().indexOf('explorer') == -1);
if (event.keyCode == 13 && !(event.srcElement &&
(event.srcElement.tagName.toLowerCase() == ""textarea""))) {
var defaultButton;
if (__TestnonMSDOMBrowser)
{
defaultButton = document.getElementById(target);
}
else {
defaultButton = document.all[target];
}
if (defaultButton && typeof(defaultButton.click) != ""undefined"") {
defaultButton.click();
event.cancelBubble = true;
if (event.stopPropagation) event.stopPropagation();
return false;
}
}
return true;
}
</script>");
this.TextBox1.Attributes.Add("onkeypress", "javascript:return
Func(event,'" + this.Button1.ClientID + "')");
}
protected void Button1_Click(object sender, EventArgs e)
{
Page.RegisterStartupScript("key1", "<script
type=\"text/javascript\">alert('from WebUserControl2')</script>");
}
}
}
You can see even if the default button is set on the Page's form the
WebUserControls can still work. The key point is to register the javascript
via RegisterStartupScript method. We catch the press event of the input and
force clicking the button.
Please have a try and let me know if it works. If you need further
assistance please feel free to ask.
Regards,
Allen Chen
Microsoft Online Community Support
Delighting our customers is our #1 priority. We welcome your comments and
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