CatalogZone.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / xsp / System / Web / UI / WebParts / CatalogZone.cs / 1305376 / CatalogZone.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

namespace System.Web.UI.WebControls.WebParts { 
 
    using System.Collections;
    using System.Collections.Specialized; 
    using System.ComponentModel;
    using System.Drawing;
    using System.Globalization;
    using System.Web.UI; 
    using System.Web.UI.WebControls;
    using System.Web.Util; 
 
    [
    Designer("System.Web.UI.Design.WebControls.WebParts.CatalogZoneDesigner, " + AssemblyRef.SystemDesign), 
    SupportsEventValidation,
    ]
    public class CatalogZone : CatalogZoneBase {
 
        private ITemplate _zoneTemplate;
 
        protected override CatalogPartCollection CreateCatalogParts() { 
            CatalogPartCollection catalogParts = new CatalogPartCollection();
 
            if (_zoneTemplate != null) {
                // PERF: Instantiate the template into a special control, that does nothing when a child control
                // is added.  This is more performant because the child control is never parented to the temporary
                // control, it's ID is never generated, etc. 
                Control container = new NonParentingControl();
 
                _zoneTemplate.InstantiateIn(container); 
                if (container.HasControls()) {
                    foreach (Control control in container.Controls) { 
                        CatalogPart part = control as CatalogPart;

                        if (part != null) {
                            catalogParts.Add(part); 
                        }
                        else { 
                            LiteralControl literal = control as LiteralControl; 
                            // Throw an exception if it is *not* a literal containing only whitespace
                            // Don't throw an exception in the designer, since we want only the offending 
                            // control to render as an error block, not the whole CatalogZone.
                            if (((literal == null) || (literal.Text.Trim().Length != 0)) && !DesignMode) {
                                throw new InvalidOperationException(SR.GetString(SR.CatalogZone_OnlyCatalogParts, ID));
                            } 
                        }
                    } 
                } 
            }
 
            return catalogParts;
        }

        [ 
        Browsable(false),
        DefaultValue(null), 
        PersistenceMode(PersistenceMode.InnerProperty), 
        TemplateContainer(typeof(CatalogZone)),
        TemplateInstance(TemplateInstance.Single) 
        ]
        public virtual ITemplate ZoneTemplate {
            get {
                return _zoneTemplate; 
            }
            set { 
                InvalidateCatalogParts(); 
                _zoneTemplate = value;
            } 
        }
    }
}

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.

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