Dynamically Add Linkbutton To Page Vb
Nov 27, 2010
I'm trying to programatically add some link buttons to a page.
I'm trying to follow an example that I've seen online but can't get it to work.
I want the linkbutton to call a sub e.g. download_file(,)
As an example what I have is:
Dim lb = New LinkButton()
lb.CausesValidation = True
lb.Attributes.Add("runat", "server")
lb.CommandName = "lb_Click"
lb.CommandArgument = "test"
lb.Text = reader("filename")
lb.EnableViewState = True
lb.Enabled = True
AddHandler lb.Click, AddressOf download_file
Panel1.Controls.Add(lb)
Getting the button(s) to appear would be a start! Also, do I need to put them on a panel?
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I'm trying to build a master page. What I'm trying to do is have a header in the master page with login and register link buttons (which would change to username and sign out) and there are content pages like home.aspx, shoppingcart.aspx, checkout.aspx which would inherit the master page with that header. So in that process i wrote the following code in master page (First.Master). And i tried to inherit the master page in home.aspx through this following code Inherits="SampleMasterProject.First" in the page tag
<body>
<form id="form1" runat="server">
<div>
<asp:ContentPlaceHolder ID="Header" runat="server">
<asp:LinkButton ID="UserNameLinkBtn" Text="UserName" runat="server"></asp:LinkButton>
<asp:LinkButton ID="PwdLinkBtn" Text="Password" runat="server"></asp:LinkButton>
</asp:ContentPlaceHolder>
</div>
</form>
</body>
But I get following error
Content controls have to be top-level controls in a content page or a nested master page that references a master page.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Content controls have to be top-level controls in a content page or a nested master page that references a master page.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[HttpException (0x80004005): Content controls have to be top-level controls in a content page or a nested master page that references a master page.]
System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) +8836686
System.Web.UI.Page.get_Master() +54
System.Web.UI.Page.ApplyMasterPage() +15
System.Web.UI.Page.PerformPreInit() +45
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +328
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[Code]....
Why is this not working the way I would expect this too work and can you show me or give me resources to fix this? I searched google but I did not find anything of use.
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I have a dynamically generated LinkButton in my ascx.cs code-behind. How could I go about "printing" this control to my page? Obviously I can't do something like just print the Text property as I need the button to retain its hyperlink. I'm guessing I want to use the WebControl.Render method, but I'm not familiar with it at all and haven't been able to find a good example of its use.
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Oct 20, 2010
The following works just fine in Chrome.
<asp:LinkButton runat="server" ID="lbEdit" OnClick="lbEdit_Click">
<button type="button" class="edit">
Edit
</button>
</asp:LinkButton>
And here is the CSS for button and its subclass.
[code]...
As you can see, nothing special; just colors and beautiful things.
I click on the blue Edit button and it fires the OnClick postback just fine.... in Chrome! But if I do the same in IE8, it just does nothing; doesn't even detect a click.
I removed the tag and kept just the word "Edit", and it works just fine in IE8 as a simple underlined link; the postback fires.
So, Why can't IE8 accept anything within LinkButton?
View 3 Replies
Mar 20, 2011
I'm trying to build a master page. What I'm trying to do is have a header in the master page with login and register link buttons (which would change to username and sign out) and there are content pages like home.aspx, shoppingcart.aspx, checkout.aspx which would inherit the master page with that header. So in that process i wrote the following code in master page (First.Master). And i tried to inherit the master page in home.aspx through this following code Inherits="SampleMasterProject.First" in the page tag
<body>
<form id="form1" runat="server">
<div>
<asp:ContentPlaceHolder ID="Header" runat="server">
<asp:LinkButton ID="UserNameLinkBtn" Text="UserName" runat="server"></asp:LinkButton>
<asp:LinkButton ID="PwdLinkBtn" Text="Password" runat="server"></asp:LinkButton>
</asp:ContentPlaceHolder>
</div>
</form>
</body>
But I get following error
Content controls have to be top-level controls in a content page or a nested master page that references a master page.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Content controls have to be top-level controls in a content page or a nested master page that references a master page.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[HttpException (0x80004005): Content controls have to be top-level controls in a content page or a nested master page that references a master page.]
System.Web.UI.MasterPage.CreateMaster(TemplateControl owner, HttpContext context, VirtualPath masterPageFile, IDictionary contentTemplateCollection) +8836686
System.Web.UI.Page.get_Master() +54
System.Web.UI.Page.ApplyMasterPage() +15
System.Web.UI.Page.PerformPreInit() +45
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +328
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