How to resolve Cannot find ContentPlaceHolder error

asp.netmaster-pageswebforms

Having a "duh" moment trying to implement a new content page

Here's the structure

Master Page
---- Nested Master Page
-------- Nested Master's Content Page

Mark up:

Master Page

<asp:ContentPlaceHolder ID="bodyContent" runat="server">
</asp:ContentPlaceHolder>

Nested Master Page

MasterPageFile="~/Views/Shared/Administrator.Master"
<asp:Content ID="Content2" CotentPlaceHolderID="bodyContent" runat="server">
 </asp:Content>

Nested Master's Content Page

MasterPageFile="~/Views/Intervention/InterventionMaster.master"
<asp:Content runat="server" ID="myContent" ContentPlaceHolderID="Content2">
 </asp:Content>

Receive error:

Cannot find ContentPlaceHolder 'Content2' in the master page
'/Views/Intervention/InterventionMaster.master', verify content
control's ContentPlaceHolderID attribute in the content page.

What could I be doing wrong?

Best Answer

You don't have ContentPlaceHolder with ID = "Content2". You have only content with such ID. Put another placeholder inside of content with ID="Content2" and then connect with the page content.

Master Page

<asp:ContentPlaceHolder ID="bodyContent" runat="server">
</asp:ContentPlaceHolder>

Nested Master Page

<asp:Content ID="Content2" ContentPlaceHolderID="bodyContent" runat="server">
    <asp:ContentPlaceHolder ID="nestedContent" runat="server">
    </asp:ContentPlaceHolder>
 </asp:Content>

Nested Master's Content Page

<asp:Content runat="server" ID="myContent" ContentPlaceHolderID="nestedContent">
 </asp:Content>

Related Solutions

Jquery – How to format a Microsoft JSON date

eval() is not necessary. This will work fine:

var date = new Date(parseInt(jsonDate.substr(6)));

The substr() function takes out the /Date( part, and the parseInt() function gets the integer and ignores the )/ at the end. The resulting number is passed into the Date constructor.

I have intentionally left out the radix (the 2nd argument to parseInt); see my comment below.

Also, I completely agree with Rory's comment: ISO-8601 dates are preferred over this old format - so this format generally shouldn't be used for new development.

For ISO-8601 formatted JSON dates, just pass the string into the Date constructor:

var date = new Date(jsonDate); //no ugly parsing needed; full timezone support

R – Filling in parent master page from child

You didn't define a "customeHead" in your child master page. If you want to expose the root master pages content area, you'll need to expose it in the child master page.

<%@ Master Language="C#" MasterPageFile="/templates/main.master" %>
<asp:contentplaceholder runat="server" id="customHead" />
<asp:content id="homeContent" contentPlaceHolderId="masterContent" Runat="server">
    <div id="info-container">
        <div id="info-content">
            <asp:contentplaceholder runat="server" id="infoContent"/>       
        </div>
    </div>
</asp:content>

Best Answer

Related Solutions

Jquery – How to format a Microsoft JSON date

R – Filling in parent master page from child

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