Using Custom WebControl As DefaultButton For Panel?
Jan 25, 2010
I have created a custom web control to act as a button with an image. I would like to be able to set this as the target of the DefaultButton parameter of an ASP.NET Panel control. I have implemented the IButton interface, and no error is generated when loading the page using the control. However, when I press enter in a textbox within that panel, the Click event of the control is not raised. When I replace my control with a standard ASP.NET button, everything works fine.I have a test page with a panel containing a textbox, an instance of my custom button, and a standard asp.net button. The buttons are wired to an event handler which will change the textbox to the ID of the caller.When DefaultButton of the panel is set to the ASP.NET button, hitting enter in the next box works correctly - the page posts back, and the text box is populated with the name of the standard button. When DefaultButton of the panel is set to my button, hitting enter in the textbox causes the page to postback, but the Click event is not fired. Clicking the button manually works correctly.Does anyone know what I have to add to my custom control to make it handle the event coming from the Panel control? I'm looking using Reflector at the source code for Button, but cannot identify what is enabling this behaviour.I have posted the source of the control below, and the relevant source of the test page.Control Source:
public class NewButton : WebControl, IPostBackEventHandler, IButtonControl
{
public NewButton() : base(HtmlTextWriterTag.A) { }
[code]...
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Aug 9, 2010
On my page i have a set of control containing parts of a form, like textboxes, checkboxes etc. I use those parts to build controls that I use in pages. For example:
UserAddToList.ascx
<asp:Panel ID="Panel1" runat="server" >
<sikt:PartFormTextboxLine runat="server" ID="samAccountName" />
<sikt:PartFormTextBoxLine runat="server" ID="name" />
<sikt:PartFormButtonLine runat="server" ID="addButton" UseSubmitBehavior="true" />
</asp:Panel>
PartFormButtonLine ascx:
<div>
<asp:Button ID="Button" runat="server" onclick="Button_Click" />
</div>
What I then want to do is to set the behavior of Panel1 to have a default button in the addbutton control. I have tried setting the Panel 1 default button to the botton in formbutonline like this: Panel1.DefaultButton = addButton.Button.UniqueID; in Page_load, but that does not work because .net throws this error: The DefaultButton of 'Panel1' must be the ID of a control of type IButtonControl. Now the button is public, so that should be ok. I have also tried ID and ClientID, with te same results. I have also tried to implement the IbuttonControl in PartFormButtonLine and map the implemented functions to the button
functions, which, as expected did not work. (Panel1.DefaultButton = addButton.ID) The problem as far as I can tell is that I cant seem to set the
"onkeypress="javascript:return WebForm_FireDefaultButton(event, 'MainContent_UserAddToList_addButton')"
of the container div to the correct value, onkeypress="javascript:return WebForm_FireDefaultButton(event, 'MainContent_UserAddToList_addButton_Button')" Everything else works, this is the last thing that needs to be fixed.. Idealy i want to fix this in the PartFormButtonLine file, as that would be better for reuse {update: removed quite abit of clutter in the ascx snippets}
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May 18, 2010
I have a page where a user can type a From & To address, which brings up a new window w/ directions. In order to bring up the page in a new window, I'm using an HTML Button (not a Button Control).
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Aug 11, 2010
UserAddToList.ascx
<asp:Panel ID="Panel1" runat="server" >
<sikt:PartFormTextboxLine runat="server" ID="samAccountName" />
sikt:PartFormTextBoxLine runat="server" ID="name" />
<sikt:PartFormButtonLine runat="server" ID="addButton" UseSubmitBehavior="true" />
</asp:Panel>
PartFormButtonLine ascx:
<div>
<asp:Button ID="Button" runat="server" onclick="Button_Click" />
</div>
I wish to set the default button of the panel to the button in PartFormButtonLine.
This is tested:
Findcontrol
Button bt = (Button)addButton.FindControl("Button");
Panel1.DefaultButton = bt.ClientID;
(also tested Panel1.DefaultButton = bt.ID; Panel1.DefaultButton = bt.UniqueID;)
Making a field: Panel1.DefaultButton = addButton.Button.ID;
(also tested Panel1.DefaultButton = addButton.Button.ClientID; Panel1.DefaultButton = addButton.Button.UniqueID;)
Setting the default button directly on addbutton. I tried both in aspx and in code to set the defaultbutton to the custom control and implement the IButton interface, but that was also fruitless.
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Feb 15, 2010
I have a GridView control on a page with a Panel that has a DefaultButton. I am trying to get the "Update" button to work with the Enter key when a user edits a row. It works fine with the mouse. When I click on "Update", the row reverts back to View mode and the updated value is shown.
When the GridView is in the Panel, the Panel's default button (which submits the page) fires when I press Enter, before the RowCommand is even handled, and the update is lost.
When the GridView is not in the Panel, some other seemingly random button in the Panel fires, but not the "Update" button in my row's EditItemTemplate. Specifically, there is a CalendarExtender on the page, and the extender's popup button fires. Totally not what I want.
How can I get this to behave correctly?
Here is the structure of my mark-up code:
<asp:Panel ID="Panel1" runat="server" DefaultButton="btnSubmit">
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<asp:ImageButton ID="btnWSPODateCal" runat="server" />
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<ajaxToolkit:CalendarExtender ID="CalendarExtender1" runat="server"
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<asp:ImageButton ID="btnSubmit" OnClick="btnSubmit_Click" />
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</asp:Panel>
<asp:GridView runat="server">
<Columns>
<asp:TemplateField>
<EditItemTemplate>
<asp:ImageButton CommandName="MyUpdate"
ID="btnSubmitRow" runat="server"
CommandArgument="<%# ((GridViewRow) Container).DataItemIndex %>" />
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Mar 16, 2010
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[Code]....
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Dec 16, 2010
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[Code]....
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Apr 4, 2011
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[Code].....
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Mar 23, 2010
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Jan 18, 2011
I created this simple custom web control:
[Code]....
I used this control on my page:
[Code]....
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Feb 23, 2010
I am writing a custom composite WebControl and want to expose styles of child controls it encapsulates to the ASP.NET designer. The code I currently have is similar to the skeleton below (which for simplicity only has one child control).
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[code]....
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Apr 6, 2010
For test purposes I have created a simple button control that extends CompositeControl. I am able to place it on the page with a <asp:Content... and the Click event Bubbles without problem from the Control.
Now, here is the problem I am facing Due to design requirement I need to read the assembly and the classname from a table and dynamically create the control and add it to the <asp:Content. And when I do that the click event will not fire! Where am I going wrong.
Here is the code in the ButtonControl.cs
namespace Reports.Web.ServerControls {
[DefaultProperty("Text")]
[ToolboxData("<{0}:ButtonControl runat=server></{0}:ButtonControl>")]
public class ButtonControl : CompositeControl {
protected override void CreateChildControls() {
Button btn = new Button();
[Code]....
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Dec 31, 2010
I have a Custom Server Control with a Collapsible Panel Extender. I want to be able to keep the Collapsable state (open or closed) when doing a Post Back.
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[Code]....
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Aug 5, 2010
I have a createuserwizard where people input their information. When I hit enter after typing in the data in the form it returns me to the homepage. How do I set the default button for the createuserwizard so that it goes to the next step rather then back to my homepage.
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May 18, 2010
I have a search textbox and a search submit button on my page. I have used the following code to allow the keyboard "Return" button to effectively "click" the search submit button without the user having a reach for their mouse.
[Code]....
However, I would like to hide the search button, since it clutters the page a little, and everyone is likely to run the search by pressing the Return key anyway. But the search ceases to run when the button is set to Visible="false", even if Enabled="true"!!Is there any way to hide the button whilst still allowing the search to work?
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Jun 2, 2010
I have created my login controls on Master Page inside a LoginViewControl. Now i am having problems to declare
my Login Button as DefaultButton! I need this in scenario when people press Enter key for submiting insted of clicking on Login Button:
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<form
id="MainForm"
runat="server">
<div>
[Code].....
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Sep 8, 2010
I'm trying to implement a custom panel control that would act as a naming container. So far here is so what I've done.
First this is my custom control, MyPanel...
[ToolboxData("<{0}:MyPanel runat=server></{0}:MyPanel>")]
public class MyPanel: Panel, INamingContainer
{
}
And I try using it like so:
<cc1:MyPanel ID="A" runat="server">
<asp:HyperLink ID="TestHyperLink" runat="server" />
</cc1:MyPanel>
<cc1:MyPanel ID="B" runat="server">
<asp:HyperLink ID="TestHyperLink" runat="server" />
</cc1:MyPanel>
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The ID 'DocumentHyperLink' is already used by another control.
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Aug 12, 2010
I have a text box and many buttons. When user is in some text box and presses the "enter" key then specific button click event is raised. I read on the internet that there are some problems with the "enter" key and I tried few solutions but still it always enters that button event (that button is the first button in the page).
I tried creating a button which does nothing and writing this in the page_load:
idTextBoxFA.Attributes.Add("onkeydown","if(event.which || event.keyCode){if ((event.which == 13) || (event.keyCode == 13)) {document.getElementBtId('" + noEnterButton.UniqueID + "').click();return false;}} else {return true}; ");
All my page controls are in a form and I tried giving the form "defaultButton" property to that button I created. That didnt work either.
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Jul 7, 2010
to have back fired on me a bit (See http://www.vbforums.com/showthread.php?t=620703). I have some other buttons on the page that I attach javascript to, e.g.:
btnPick12.Attributes.Add("onClick", "return Pick12();")
And in the page Head I have the script
Code:
<script type="text/javascript">
function Pick12() {
var PopupWindow = null;
[code]....
Basically I use javascript to pop open a window with a datepicker which they use to populate a textbox on the main page with a date. However, if I set a defaultbutton, when i click one of these buttons the popup window flashes to the front of the screen and then the main browser window gets focus over it. Without default button the popup stays on top.
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Jan 31, 2011
I have several text boxes in an asp:Panel. When the user hits Enter from any of those boxes, I want the form to submit as if they've clicked btnAddTag. (When the cursor is not in those boxes, I have a different default submit button.)
The aspx:
<asp:Panel id="thePanel" runat="server">
<asp:Button ID="btnAddTag" Text="Add Tag" runat="server" />
</asp:Panel>
The vb:
tagPanel.DefaultButton = btnAddTag.UniqueID
The exception:
The DefaultButton of 'tagPanel' must be the ID of a control of type IButtonControl.
The value of btnAddTag.UniqueID is ctl00$phMain$btnAddTag (there's a master page, this section is called phMain).
I've also tried CType(tagPanel.FindControl("btnAddTag"), Button).UniqueID.
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