Develop Reference

When I use asp LoginView Role for Button then get an error

I am using the below code in ASP.NET to hide action buttons for simple users who can see only data but can't change it;
<asp:LoginView ViewStateMode="Disabled" runat="server">
<RoleGroups>
<asp:RoleGroup Roles="HRAdmin">
<ContentTemplate>
<asp:Button ID="BtnAddnew" CssClass="bluebutton" title="Click to Add New Employee" runat="server" Text="Add New" OnClick="BtnAddnew_Click" />
<asp:Button ID="BtnSaveNew" CssClass="bluebutton" title="Click to Save New Record" runat="server" Text="Save New" Visible="false" OnClick="BtnSaveNew_Click" />
<asp:Button ID="BtnUpdate" CssClass="bluebutton" title="Click to Update Record" runat="server" Text="Update" OnClick="BtnUpdate_Click" />
<asp:Button ID="BtnSaveUpdate" CssClass="bluebutton" title="Click to Save Record" runat="server" Text="Save Update" Visible="false" OnClick="BtnSaveUpdate_Click" />
</ContentTemplate>
</asp:RoleGroup>
</RoleGroups>
</asp:LoginView>
But when I load page or build project, then I get errors:
The name 'BtnAddnew' does not exist in the current context.
The name 'BtnSaveNew' does not exist in the current context.
The name 'BtnUpdate' does not exist in the current context.
The name 'BtnSaveUpdate' does not exist in the current context.
It means in the C# code it is not loading OnClick event of these buttons. How can I fix this problem?

This suggests that you don't in code behind
have the button click events.
Try removing the this part of each button:
So, change:
<asp:Button ID="BtnAddnew" CssClass="bluebutton"
title="Click to Add New Employee" runat="server"
Text="Add New" OnClick="BtnAddnew_Click" />
to:
<asp:Button ID="BtnAddnew" CssClass="bluebutton"
title="Click to Add New Employee" runat="server"
Text="Add New" />
Now, do a build-rebuild Solution
If you want to add a click event to each button, then in markup, type on OnClick=, and THEN let intel-sense suggest to you to create new event (a click event)
eg this:
It will seem like nothing occurred, but if you flip over to code behind, then the button click event should now exist.
In fact, before you try any of above, exit VS. Re-load. Do a bio;d ->rebuild solution. Then try the page - it it still don't work, then you need to do above.

you should check you aspx page cs refrence class.
<%# Page Title="" Language="C#" MasterPageFile="~/Test/Test/Test.master" AutoEventWireup="true" CodeFile="Test_Update.aspx.cs" Inherits="ProjectName_FolderName_Test_Update" %>

This is because I am using <asp:LoginView and buttons was inside it.That's why you may use below code:
Button BtnAddnew = ((Button)(this.LVButton.FindControl("BtnAddnew")));
Button BtnSaveNew = ((Button)(this.LVButton.FindControl("BtnSaveNew")));
Button BtnUpdate = ((Button)(this.LVButton.FindControl("BtnUpdate")));
Button BtnSaveUpdate = ((Button)(this.LVButton.FindControl("BtnSaveUpdate")));

opening link with rel="" and href="" using server control button

I am using a Javascript package that makes a popup of inline html: http://www.enthropia.com/labs/ibox/
The following works correctly:
Click to Open
However, I want to be able to open the link as above by clicking a asp.net server control button:
<asp:Button ID="searchButton" runat="server" Text="Search Stories" OnClick="searchButton_Click" />
How do I acomplish this? I tried:
<asp:Button ID="searchButton" runat="server" Text="Search Stories" OnClick="searchButton_Click" />
and it works, but it breaks the OnClick C# ability. Also, I found out this is incorrect. So how do I do it correctly?

You want this to occur in the browser, not serverside, so you will not be able to use the .net OnClick.
You'll need to set the asp.net button's JS onclick behavior, and issue a click event on the link when it triggers.
With your existing code, i would do something like this:
ASPX page:
<a id="linkId" href="#inner_content" rel="ibox&width=800&height=400" title="Search Non Scrum Stories">Click to Open</a>
<div id="buttonContainer">
<asp:Button ID="searchButton" runat="server" Text="Search Stories" />
</div>
<script>
var link = document.getElementById("linkId");
var button = document.getElementById("buttonContainer").children[0];
button.onclick = function(){link.click();}
</script>
Here is a working example of the js: http://jsfiddle.net/MaxPRafferty/f8jqP/

Wait for user response after showing modal popup login

In my code behind file i am calling an html modal popup which prompts the user for their username and password.
i would like to get a result back from this to my code behind calling function before proceeding.
how do i do this? Right now the modal form is shown and the c# code continues processing which makes sense but its not what i want.
Note: The modal signoff html modal form has a button (btnSignoff) that calls some other code behind function
thanks
Damo
Code behind:
SignoffModal.Show();
//Wait for response (this is what i would like to be able to do)
if (result <0)
{
//throw some error
}
else
{
// Do some more work
}
HTML Code:
<!-- Signoff Modal Form -->
<asp:HiddenField ID="SignoffForModal" runat="server" />
<ajaxToolkit:ModalPopupExtender runat="server" ID="SignoffModal" BehaviorID="modalPopupExtenderSignoff"
TargetControlID="SignoffForModal" PopupControlID="popUpPaneSignoff" OkControlID="btnSignoff"
BackgroundCssClass="modalBackground">
</ajaxToolkit:ModalPopupExtender>
<asp:Panel ID="popUpPaneSignoff" runat="server" CssClass="confirm-dialog">
<asp:Label ID="lblUsername" runat="server" Text="Username"></asp:Label>
<br />
<asp:TextBox ID="txtUserName" runat="server" ToolTip="Username" Width="200px"></asp:TextBox>
<br />
<asp:Label ID="lblPassword" runat="server" Text="Password"></asp:Label>
<br />
<asp:TextBox ID="txtPassword" runat="server" ToolTip="Password" TextMode="Password"
Width="200px"></asp:TextBox>
<br />
<br />
<div class="base">
<asp:Button ID="btnSignoff" runat="server" Text="Signoff" />
<asp:LinkButton ID="LinkButton3" runat="server" CssClass="close" OnClientClick="$find('modalPopupExtenderSignoff').hide(); return false;" /></div>
</asp:Panel>
<!-- End Signoff Modal Form -->

Looks like the ModalPopupExtender isn't designed this way. While it is modal (prevents the user from interacting with the rest of the page), it's not blocking, mean code continues to run after the form is called. That's because the popup is running on the client, and the code-behind runs the server. This is called a callback because the client code calls back to the server when a action is taken.
To make this work, you have to split the logic you after SignoffModal.Show(); in an "Ok" part and a "Cancel" part by adding a CancelControlID attribute on ModalPopupExtender to point to the button that handles the Cancel action, then add the button:
<!-- Signoff Modal Form -->
<asp:HiddenField ID="SignoffForModal" runat="server" />
<ajaxToolkit:ModalPopupExtender runat="server" ID="SignoffModal"
BehaviorID="modalPopupExtenderSignoff"
TargetControlID="SignoffForModal"
PopupControlID="popUpPaneSignoff"
OkControlID="btnSignoff"
// points to cancel button action
CancelControlID="btnCancel"
BackgroundCssClass="modalBackground">
...
<asp:Button ID="btnSignoff" runat="server" Text="Signoff" />
// handles Cancel action...
<asp:Button ID="btnCancel" runat="server" Text="Cancel" />
...
<!-- End Signoff Modal Form -->
in the btnSignoff code-behind event handler:
{
// Do some work...
in the btnCancel code-behind event handler:
{
//throw some error...

Button inside asp:panel is not working properly

I have an ajax extender in my aspx page.
I want to make the button do something in code behind when is pushed but my button inside the panel doesn't work.I created another button outside the panel and wrote the same thing to do and is working.
This is my button inside the panel:
<ajax:AccordionPane ID="AccordionPane1" runat="server">
<Header>Adauga titlu</Header>
<Content>
<asp:Panel ID="UserReg" runat="server" DefaultButton="but">
<cc1:Editor ID="Editor1" runat="server" width="500px"/>
<br /><br />
<asp:Button runat="server" ID="but" Text="Adauga Titlu" />
</asp:Panel>
</Content>
</ajax:AccordionPane>
This button is not working but the other button outside is working and they both do the same thing.Can you provide a solution?

Perhaps you are simply missing the OnClick attribute, like this:
<asp:Button runat="server" ID="but" Text="Adauga Titlu" OnClick="but_Click" />

Have you included the Asp ScriptManager?
http://msdn.microsoft.com/en-us/library/system.web.ui.scriptmanager.aspx

ASP.NET AJAX Control Toolkit: Show a ModalPopup and then do PostBack

I want to show a modal popup when a user click on an asp button. The user must select an option of a panel. The value of the option selected must be saved to an input hidden and then the asp.net button must do a PostBack.
Can I do that?
Thank you!

It is possible for a ModalPopupExtender to be displayed using a postback. You'll need an invisible target control. The extender is attached to this hidden control.
<asp:Button runat="server" ID="btnShowModal" Text="Show"
OnClick="btnShowModal_Click" />
<asp:Button runat="server" ID="HiddenForModal" style="display: none" />
<ajaxToolKit:ModalPopupExtender ID="Modal1" runat="server"
TargetControlID="HiddenForModal" PopupControlID="PopupPanel" />
In your message handler in code-behind, you'll show the ModalPopupExtender:
Modal1.Show();
And in the code you're using to dismiss the Modal, call the ModalPopupExtender's Hide function:
Modal1.Hide();
I use this method for showing a modal that displays detailed data that I retrieve from a database based on what's selected in a GridView.

Add your Button or LinkButton
<asp:Button ID="MyButton" Text="Click Here" runat="server" />
Add a Panel to hold your options with a DropDownList
<asp:Panel ID="MyPanel" runat="server">
<asp:DropDownList ID="MyDropDown" runat="server">
<asp:ListItem Value="1" Text="Option 1" />
</asp:DropDownList>
<asp:Button ID="SaveBtn" Text="Save" OnClick="Save_Click" runat="server" />
<asp:Button ID="CancelBtn" Text="Cancel" runat="server" />
</asp:Panel>
Add your ModelPopupExtender
<act:ModalPopupExtender ID="Mpe1" TargetControlID="MyButton"
CancelControlID="CancelBtn" PopupControlID="MyPanel" runat="server" />
Then add your code behind to the SaveBtn Button
public void SaveBtn_Click(object sender, EventArgs e) {
string selectedOption = MyDropDown.SelectedValue;
}

Finally, I've decided to use jQuery to show a ModalPopUp. The following question has the answer to this question:
jQuery UI's Dialog doesn't work on ASP.NET
If you are not agree, tell me.