protected override void OnInit(EventArgs e)
{
//Check whether there in a SPContext, and if this is a List Item
if (SPContext.Current != null && SPContext.Current.ListItem != null)
{
//Check whether the current content type is or inherits from the Page content type
SPContentTypeId pageContentTypeId = SPContext.Current.Web.AvailableContentTypes["Page"].Id;
SPContentTypeId currentItemTypeId = SPContext.Current.ListItem.ContentTypeId;
if (currentItemTypeId.Equals(pageContentTypeId) || currentItemTypeId.IsChildOf(pageContentTypeId))
{
//Get the PageHolderMain content place holder control
ContentPlaceHolder placeHolderMain = (ContentPlaceHolder)this.Page.Master.FindControl("PlaceHolderMain");
if (placeHolderMain != null)
{
//Check whether the current item is a publishing page and is a New item or in Edit mode
if ((PublishingPage.IsPublishingPage(SPContext.Current.ListItem)) &&
(SPContext.Current.FormContext.FormMode == SPControlMode.Edit ||
SPContext.Current.FormContext.FormMode == SPControlMode.New))
{
//Get the custom column
SPField demoCustomColumn;
try
{
demoCustomColumn = SPContext.Current.ListItem.Fields["DemoCustomColumn"];
}
catch
{
demoCustomColumn = null;
}
if (demoCustomColumn != null)
{
//We have a page, in edit or new mode, with the demoCustomColumn.
//So render the custom field control
BaseFieldControl demoCustomColumnControl = demoCustomColumn.FieldRenderingControl;
demoCustomColumnControl.ID = demoCustomColumn.InternalName;
placeHolderMain.Controls.Add(new LiteralControl("<div class=\"edit-mode-panel\">"));
placeHolderMain.Controls.Add(demoCustomColumnControl);
placeHolderMain.Controls.Add(new LiteralControl("</div>"));
}
}
else if ((PublishingPage.IsPublishingPage(SPContext.Current.ListItem)) &&
(SPContext.Current.FormContext.FormMode == SPControlMode.Display))
{
//Get the custom column
SPField demoCustomColumn;
try
{
demoCustomColumn = (SPFieldText)SPContext.Current.ListItem.Fields["DemoCustomColumn"];
}
catch
{
demoCustomColumn = null;
}
if (demoCustomColumn != null)
{
//We have a page, in display mode, with the demoCustomColumn.
//So render the value of the field. You can add custom rendering markup
//here. In this case, the <div> tag renders the text in red.
placeHolderMain.Controls.Add(new LiteralControl("<div style=\"color: red;\">"));
placeHolderMain.Controls.Add(new LiteralControl(SPContext.Current.ListItem["DemoCustomColumn"].ToString()));
placeHolderMain.Controls.Add(new LiteralControl("</div>"));
}
}
}
}
}
base.OnInit(e);
}