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[CLOSED] Control with type 'System.Web.UI.WebControls.PlaceHolder' cannot be handled by layout

  1. #1
    Jul 19, 2012, 4:18 PM

    [CLOSED] Control with type 'System.Web.UI.WebControls.PlaceHolder' cannot be handled by layout

    I'm trying to Add an '<asp:PlaceHolder' inside an FormPanel with other '<ext:' Control, but my first issue is the error above...

    Secondl how can I add other '<ext:' controls with '<asp:PlaceHolder' inside a FormPanel

    <%@ Page Language="C#" %>

<%@ Import Namespace="Business.Controllers" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        var txtBox = new TextBox();

        this.PlaceHolder1.Controls.Add(txtBox);

        txtBox.ID = "textBox1";
        txtBox.Width = Unit.Pixel(250);
    }

</script>
<!DOCTYPE html>
<html>
<head id="Head1" runat="server">
    <title>Multi Node TreePanel built from code-behind - Ext.NET Examples</title>
</head>
<body>
    <form id="Form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server" />
    <br />
    <ext:FormPanel ID="FormPanel1" runat="server" BodyPadding="5" Border="false" Title="Testing adding Placeholder"
        Layout="AnchorLayout">
        <Content>
            <asp:PlaceHolder ID="PlaceHolder1" runat="server" />
        </Content>
    </ext:FormPanel>
    </form>
</body>
</html>
    Last edited by Daniil; Jul 20, 2012 at 1:42 PM. Reason: [CLOSED]
  2. #2
    Jul 19, 2012, 4:29 PM
    Hi,

    Layouts can't work with non Ext.NET widgets.

    Please remove
    Layout="AnchorLayout"
  3. #3
    Jul 19, 2012, 4:55 PM
    I get the same error !!!

    Quote Originally Posted by Daniil View Post
    Hi,

    Layouts can't work with non Ext.NET widgets.

    Please remove
    Layout="AnchorLayout"
  4. #4
    Jul 19, 2012, 5:06 PM
    Yes, there is the default layout in FormPanel.

    Generally, FormPanel doesn't make any sense with non Ext.NET controls.

    Please use a common Container instead of FormPanel.
  5. #5
    Jul 19, 2012, 5:30 PM
    A container will NOT fit the BILL !

    I'm trying to work with something like this below and I need the Layout to work for me, any Ideas??


    <%@ Page Language="C#" %>

<%@ Import Namespace="Business.Controllers" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        var txtBox = new TextBox();

        this.PlaceHolder1.Controls.Add(txtBox);

        txtBox.ID = "textBox1";
        txtBox.Width = Unit.Pixel(250);
    }

</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Ext.NET Examples</title>
</head>
<body>
    <form id="Form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server">
        <Listeners>
            <DocumentReady Handler="#{TabPanel1}.add(#{Panel1});  #{TabPanel1}.setActiveTab(0);" />
        </Listeners>
    </ext:ResourceManager>
    <br />
    <ext:TabPanel ID="TabPanel1" runat="server" />
    <ext:Panel runat="server" ID="Panel1" Title="Title">
        <Content>
            <asp:PlaceHolder ID="PlaceHolder1" runat="server" />
            <ext:Label Text="label1" ID="label1" runat="server" />
        </Content>
    </ext:Panel>
    </form>
</body>
</html>
    Quote Originally Posted by Daniil View Post
    Yes, there is the default layout in FormPanel.

    Generally, FormPanel doesn't make any sense with non Ext.NET controls.

    Please use a common Container instead of FormPanel.
  6. #6
    Jul 19, 2012, 5:34 PM
    Quote Originally Posted by Fahd View Post
    A container will NOT fit the BILL !

    I'm trying to work with something like this below and I need the Layout to work for me, any Ideas??


    <%@ Page Language="C#" %>

<%@ Import Namespace="Business.Controllers" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        var txtBox = new TextBox();

        this.PlaceHolder1.Controls.Add(txtBox);

        txtBox.ID = "textBox1";
        txtBox.Width = Unit.Pixel(250);
    }

</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Ext.NET Examples</title>
</head>
<body>
    <form id="Form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server">
        <Listeners>
            <DocumentReady Handler="#{TabPanel1}.add(#{Panel1});  #{TabPanel1}.setActiveTab(0);" />
        </Listeners>
    </ext:ResourceManager>
    <br />
    <ext:TabPanel ID="TabPanel1" runat="server" />
    <ext:Panel runat="server" ID="Panel1" Title="Title">
        <Content>
            <asp:PlaceHolder ID="PlaceHolder1" runat="server" />
            <ext:Label Text="label1" ID="label1" runat="server" />
        </Content>
    </ext:Panel>
    </form>
</body>
</html>
    1. The .Layout does not apply to Controls added in a <Content> region, only <Items>.
    2. The <asp:PlaceHolder> cannot be added in the <Items> Collection.

    Those are the limitations.
    Geoffrey McGill
    Founder
    Ext.NETASP.NET UI Component framework
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  7. #7
    Jul 19, 2012, 5:44 PM
    Thanks Geoffrey...

    I have decided to you the '<ext:Panel' and I'll do some sort of work around...

    <%@ Page Language="C#" %>

<%@ Import Namespace="Business.Controllers" %>
<%@ Register Assembly="Ext.Net" Namespace="Ext.Net" TagPrefix="ext" %>
<script runat="server">
    protected void Page_Load(object sender, EventArgs e)
    {
        var txtBox = new TextBox();

        this.PlaceHolder1.Controls.Add(txtBox);

        txtBox.ID = "textBox1";
        txtBox.Width = Unit.Pixel(250);
    }

</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
    <title>Ext.NET Examples</title>
</head>
<body>
    <form id="Form1" runat="server">
    <ext:ResourceManager ID="ResourceManager1" runat="server">
        <Listeners>
            <DocumentReady Handler="#{TabPanel1}.add(#{Panel1});  #{TabPanel1}.setActiveTab(0);" />
        </Listeners>
    </ext:ResourceManager>
    <br />
    <ext:TabPanel ID="TabPanel1" runat="server" />
    <ext:Panel runat="server" ID="Panel1" Title="Title">
        <Content>
            <asp:PlaceHolder ID="PlaceHolder1" runat="server" />
            <ext:Label Text="label1" ID="label1" runat="server" />
        </Content>
    </ext:Panel>
    </form>
</body>
</html>
    Quote Originally Posted by geoffrey.mcgill View Post
    1. The .Layout does not apply to Controls added in a <Content> region, only <Items>.
    2. The <asp:PlaceHolder> cannot be added in the <Items> Collection.

    Those are the limitations.
  8. #8
    Jul 20, 2012, 10:20 AM
    Please clarify can we mark the thread as closed?
  9. #9
    Jul 20, 2012, 1:33 PM
    Yes, please close!

    I'll use the Container inside of a Panel...

    Quote Originally Posted by Daniil View Post
    Please clarify can we mark the thread as closed?

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