EntityDesignerDataSourceView.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 / DataWebControlsDesign / System / Data / WebControls / Design / EntityDesignerDataSourceView.cs / 1305376 / EntityDesignerDataSourceView.cs
                        

                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
// 
// @owner       [....]
// @backupOwner [....] 
//----------------------------------------------------------------------------- 
using System.Collections;
using System.Data; 
using System.Web.UI.Design;

namespace System.Web.UI.Design.WebControls
{ 
    public class EntityDesignerDataSourceView : DesignerDataSourceView
    { 
        private EntityDataSourceDesignerHelper _helper; 

        public EntityDesignerDataSourceView(EntityDataSourceDesigner owner) 
            : base(owner, EntityDataSourceDesignerHelper.DefaultViewName)
        {
            _helper = owner.Helper;
        } 

        public override bool CanDelete 
        { 
            get
            { 
                return CanModify && _helper.EnableDelete;
            }
        }
 
        public override bool CanInsert
        { 
            get 
            {
                return CanModify && _helper.EnableInsert; 
            }
        }

        internal bool CanModify 
        {
            get 
            { 
                return !String.IsNullOrEmpty(_helper.EntitySetName) &&
                    String.IsNullOrEmpty(_helper.Select) && 
                    String.IsNullOrEmpty(_helper.CommandText) &&
                    String.IsNullOrEmpty(_helper.GroupBy);
            }
        } 

        public override bool CanPage 
        { 
            get
            { 
                return _helper.CanPage;
            }
        }
 
        public override bool CanSort
        { 
            get 
            {
                return _helper.CanSort; 
            }
        }

        public override bool CanUpdate 
        {
            get 
            { 
                return CanModify && _helper.EnableUpdate;
            } 
        }

        public override IDataSourceViewSchema Schema
        { 
            get
            { 
                DataTable schemaTable = _helper.LoadSchema(); 
                if (schemaTable == null)
                { 
                    return null;
                }
                return new DataSetViewSchema(schemaTable);
            } 
        }
 
        public override IEnumerable GetDesignTimeData(int minimumRows, out bool isSampleData) 
        {
            DataTable schemaTable = _helper.LoadSchema(); 
            if (schemaTable != null)
            {
                isSampleData = true;
                return DesignTimeData.GetDesignTimeDataSource(DesignTimeData.CreateSampleDataTable(new DataView(schemaTable), true), minimumRows); 
            }
 
            // Couldn't find design-time schema, use base implementation 
            return base.GetDesignTimeData(minimumRows, out isSampleData);
        } 
    }
}

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

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