R – Multiple Default Buttons in a User Control

asp.netdefaultbuttonuser-controls

I have a user control that is comprised of 3 textboxes, 3 buttons and a gridview. I can set the defaultbutton property of the form, but that would only affect one button.

Each textbox/button combo should have a behavior that when the textbox has focus, pressing Enter should fire its associated button.

To further complicate the issue, this is being used inside a Master Page implementation.

Is there any way to do this? As far as I can tell, .NET will only allow one default button – it doesn't provide to explicitly associate textboxes and buttons.

I welcome your insights.

Best Answer

Here one way:

<form id="form1" runat="server">
<div>
    <asp:Panel ID="Panel1" DefaultButton="Button1" runat="server">
        <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox><br />
        <asp:Button ID="Button1" runat="server" Text="Button" />
    </asp:Panel>
    <asp:Panel ID="Panel2" DefaultButton="Button2" runat="server">
        <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox><br />
        <asp:Button ID="Button2" runat="server" Text="Button" />
    </asp:Panel>
    <asp:Panel ID="Panel3" DefaultButton="Button3" runat="server">
        <asp:TextBox ID="TextBox3" runat="server"></asp:TextBox><br />
        <asp:Button ID="Button3" runat="server" Text="Button" />
    </asp:Panel>
</div>
</form>

Related Solutions

C# – “The Controls collection cannot be modified because the control contains code blocks”

First, start the code block with <%# instead of <%= :

<head id="head1" runat="server">
  <title>My Page</title>
  <link href="css/common.css" rel="stylesheet" type="text/css" />
  <script type="text/javascript" src="<%# ResolveUrl("~/javascript/leesUtils.js") %>"></script>
</head>

This changes the code block from a Response.Write code block to a databinding expression.
Since <%# ... %> databinding expressions aren't code blocks, the CLR won't complain. Then in the code for the master page, you'd add the following:

protected void Page_Load(object sender, EventArgs e)
{
  Page.Header.DataBind();    
}

ASP.NET panel DefaultButton event fires only once

For a panel with one textbox and one button which is its default button, the DefaultButton event fires only once as editing textbox details again and pressing enter, event doesn't fire.

What do you mean "the DefaultButton event"? There isn't an event as such, .NET inserts some HTML that will associate the TextBox with the Button when Enter is pressed, it is not related to the click's of a button.

Best Answer

Related Solutions

C# – “The Controls collection cannot be modified because the control contains code blocks”

ASP.NET panel DefaultButton event fires only once

Related Topic