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  • 一个 NHIBERNATE+GRIDVIEW 添加删除修改的例子(单表)

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    aspx：

    <%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Default.aspx.cs" Inherits="_Default" %>

    <!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 runat="server">
            <title>无标题页</title>
    </head>
    <body>
            <form id="form1" runat="server">
            <div>
                <asp:Button ID="btn_INSERT" runat="server" OnClick="btn_INSERT_Click" Text="INSERT" /><br />
                <asp:GridView ID="GridView1" runat="server" BackColor="White" BorderColor="#DEDFDE" BorderStyle="None" BorderWidth="1px" CellPadding="4" Font-Names="Arial" Font-Size="9pt" ForeColor="Black" GridLines="Vertical" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" OnRowUpdating="GridView1_RowUpdating" AutoGenerateColumns="False" DataKeyNames="ID" OnRowCancelingEdit="GridView1_RowCancelingEdit">
                    <FooterStyle BackColor="#CCCC99" />
                    <RowStyle BackColor="#F7F7DE" />
                    <SelectedRowStyle BackColor="#CE5D5A" Font-Bold="True" ForeColor="White" />
                    <PagerStyle BackColor="#F7F7DE" ForeColor="Black" HorizontalAlign="Right" />
                    <HeaderStyle BackColor="#6B696B" Font-Bold="True" ForeColor="White" />
                    <AlternatingRowStyle BackColor="White" />
                    <Columns>
                    <asp:BoundField DataField="UserID" HeaderText="UserID"/>
                    <asp:BoundField DataField="Message" HeaderText="Message"/>
                    <asp:BoundField DataField="CreateTime" HeaderText="CreateTime" ReadOnly="True"/>
                    <asp:CommandField CancelText="CANCEL" UpdateText="UPDATE" EditText="EDIT" DeleteText="DELETE" ShowDeleteButton="True" ShowEditButton="True"/>
                    </Columns>
                </asp:GridView>
        
            </div>
            </form>
    </body>
    </html>

    aspx.cs

    using System;
    using System.Data;
    using System.Configuration;
    using System.Web;
    using System.Web.Security;
    using System.Web.UI;
    using System.Web.UI.WebControls;
    using System.Web.UI.WebControls.WebParts;
    using System.Web.UI.HtmlControls;
    using System.Collections;

    public partial class _Default : System.Web.UI.Page 
    {
            protected void Page_Load(object sender, EventArgs e)
        {
                if (!IsPostBack)
            {
                SetBind();
            }
        }
            private void SetBind()
        {
            CUID.GuestMessageCUID gm     = new CUID.GuestMessageCUID();
                this.GridView1.DataSource = gm.GetGuestMessage();
                this.GridView1.DataBind();
        }
            protected void btn_INSERT_Click(object sender, EventArgs e)
        {
            CUID.GuestMessageCUID gm     = new CUID.GuestMessageCUID();
            IList list     = gm.GetGuestMessage();
            list.Insert(    0, new DataEntity.GuestMessage());
                this.GridView1.EditIndex = 0;
                this.GridView1.DataSource = list;
                this.GridView1.DataBind();  
        }

            protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
        {
            GridViewRow gvr     = this.GridView1.Rows[e.RowIndex];
                object AutoID = this.GridView1.DataKeys[e.RowIndex].Value;
            DataEntity.GuestMessage gmentity     = new DataEntity.GuestMessage();
                if (AutoID != null)
            {
                gmentity.Id     = AutoID.ToString();
                CUID.GuestMessageCUID gm     = new CUID.GuestMessageCUID();
                gm.DeleteGuestMessage(gmentity);
                SetBind();
            }
           
        }

            protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
        {
                this.GridView1.EditIndex = e.NewEditIndex;
            SetBind();
        }

            protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
        {
            CUID.GuestMessageCUID gm     = new CUID.GuestMessageCUID();
            GridViewRow gvr     = this.GridView1.Rows[e.RowIndex];
            TextBox tbUserID     = gvr.Cells[0].Controls[0] as TextBox;
            TextBox tbMessage     = gvr.Cells[1].Controls[0] as TextBox;
                object AutoID = this.GridView1.DataKeys[e.RowIndex].Value;
            DataEntity.GuestMessage gmentity     = new DataEntity.GuestMessage();
            gmentity.UserID     = tbUserID.Text;
            gmentity.Message     = tbMessage.Text;
                if (AutoID == null)
            {
                gmentity.CreateTime     = DateTime.Now;
                gm.AddGuestMessage(gmentity);
            }
                else
            {
                gmentity.Id     = AutoID.ToString();
                gmentity.CreateTime     = DateTime.Parse(gvr.Cells[2].Text);
                gm.UpdateGuestMessage(gmentity);
            }
                this.GridView1.EditIndex = -1;
            SetBind();
        }
            protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
        {
                this.GridView1.EditIndex = -1;
            SetBind();
        }
    }

    cuid.cs

    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.Collections;
    using DataHelper;
    using System.Data;

    namespace CUID
    {
            public class GuestMessageCUID
        {
                private EntityControl control;

                public GuestMessageCUID()
            {
                control     = EntityControl.CreateEntityControl("DataEntity");
            }

                public IList GetGuestMessage()
            {
                    return control.GetEntities("from DataEntity.GuestMessage");
            }

                public void AddGuestMessage(DataEntity.GuestMessage gm)
            {
                control.AddEntity(gm);
            }

                public void UpdateGuestMessage(DataEntity.GuestMessage gm)
            {
                control.UpdateEntity(gm,gm.Id);
            }

                public void DeleteGuestMessage(DataEntity.GuestMessage gm)
            {
                control.DeleteEntity(gm);
            }
        }
    }

    datahelper.cs

    using System;
    using System.Collections.Generic;
    using System.Text;
    using System.Collections;
    using NHibernate;
    using NHibernate.Cfg;
    using System.Data;

    namespace DataHelper
    {
            public class SessionFactory
        {
                private static ISessionFactory sessions;
                private static Configuration cfg;
                static readonly object padlock = new object();
                public static ISession OpenSession(string AssemblyName)
            {
                    if (sessions == null)
                {
                        lock (padlock)
                    {
                            if (sessions == null)
                        {
                            BuildSessionFactory(AssemblyName);
                        }
                    }
                }
                    return sessions.OpenSession();
            }

                private static void BuildSessionFactory(string AssemblyName)
            {
                cfg     = new Configuration();
                cfg.AddAssembly(AssemblyName);
                sessions     = cfg.BuildSessionFactory();
            }
        }

            public class EntityControl
        {
                private static EntityControl entity;
                private string _AssemblyName;
                static readonly object padlock = new object();
                public static EntityControl CreateEntityControl(string AssemblyName)
            {
                    if (entity == null)
                {
                        lock (padlock)
                    {
                            if (entity == null)
                        {
                            entity     = new EntityControl();
                            entity._AssemblyName     = AssemblyName;
                        }
                    }
                }
                    return entity;

            }

                public void AddEntity(Object entity)
            {
                ISession session     = SessionFactory.OpenSession(_AssemblyName);
                ITransaction transaction     = session.BeginTransaction();
                    try
                {
                    session.Save(entity);
                    transaction.Commit();
                }

                    catch (Exception ex)
                {
                    transaction.Rollback();
                        throw ex;
                }
                    finally
                {
                    session.Close();
                }
            }

                public void UpdateEntity(Object entity ,Object key)
            {
                ISession session     = SessionFactory.OpenSession(_AssemblyName);
                ITransaction transaction     = session.BeginTransaction();
                    try
                {
                    session.Update(entity);
                    transaction.Commit();
                }
                    catch (Exception ex)
                {
                    transaction.Rollback();
                        throw ex;
                }
                    finally
                {
                    session.Close();
                }
            }

                public void DeleteEntity(object entity)
            {
                ISession session     = SessionFactory.OpenSession(_AssemblyName);
                ITransaction transaction     = session.BeginTransaction();
                    try
                {
                    session.Delete(entity);
                    transaction.Commit();
                }
                    catch (Exception ex)
                {
                    transaction.Rollback();
                        throw ex;
                }
                    finally
                {
                    session.Close();
                }
            }

                public IList GetEntities(string strHQL)
            {
                IList list;
                ISession session     = SessionFactory.OpenSession(_AssemblyName);
                list     = session.Find(strHQL);
                session.Close();
                    return list;
            }
        }
    }

    实体

    using System;
    using System.Collections;

    namespace DataEntity
    {
            #region GuestMessage

            /// <summary>
            /// GuestMessage object for NHibernate mapped table 'GuestMessage'.
            /// </summary>
        public class GuestMessage
        {
                #region Member Variables
            
                protected string _id;
                protected string _userID;
                protected string _message;
                protected DateTime _createTime;

                #endregion

                #region Constructors

                public GuestMessage() { }

                public GuestMessage( string userID, string message, DateTime createTime )
            {
                    this._userID = userID;
                    this._message = message;
                    this._createTime = createTime;
            }

                #endregion

                #region Public Properties

                public string Id
            {
                    get {return _id;}
                    set
                {
                        if ( value != null && value.Length > 50)
                            throw new ArgumentOutOfRangeException("Invalid value for Id", value, value.ToString());
                    _id     = value;
                }
            }

                public string UserID
            {
                    get { return _userID; }
                    set
                {
                        if ( value != null && value.Length > 50)
                            throw new ArgumentOutOfRangeException("Invalid value for UserID", value, value.ToString());
                    _userID     = value;
                }
            }

                public string Message
            {
                    get { return _message; }
                    set
                {
                        if ( value != null && value.Length > 16)
                            throw new ArgumentOutOfRangeException("Invalid value for Message", value, value.ToString());
                    _message     = value;
                }
            }

                public DateTime CreateTime
            {
                    get { return _createTime; }
                    set { _createTime = value; }
            }

            

                #endregion
        }
            #endregion
    }

    实体xml

    <?xml version="1.0" encoding="utf-8" ?>
    <hibernate-mapping xmlns="urn:nhibernate-mapping-2.0">
            <class name="DataEntity.GuestMessage, DataEntity" table="GuestMessage">
                <id name="Id" type="String" unsaved-value="null">
                    <column name="AutoID" length="50" sql-type="varchar" not-null="true" unique="true" index="PK_Message"/>
                    <generator class="identity" />
                </id>
                <property name="UserID" type="String">
                    <column name="UserID" length="50" sql-type="varchar" not-null="false"/>
                </property>
                <property name="Message" type="String">
                    <column name="Message" length="16" sql-type="text" not-null="false"/>
                </property>
                <property name="CreateTime" type="DateTime">
                    <column name="CreateTime" length="8" sql-type="datetime" not-null="false"/>
                </property>
            </class>
    </hibernate-mapping>
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  • 原文地址：https://www.cnblogs.com/lovecherry/p/398169.html
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