GridView禁用掉viewstate之后的新建，编辑，删除

示例程序为一个超级Mini的图书管理，DB中只有一个名为"tableBook"的表，里面也只有三个字段ID(autonumber)，bookName,BookAuthor。效果图：

Main.aspx: 

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

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 > Untitled Page title >
    
     < script  type ="text/javascript" > ...
    
        //将当前行生成的文本框中的值存入相应的控件，并点击“修改”
        function Update(id)
        ...{
            if(confirm('确定要修改吗？'))
            ...{
                document.getElementById('hiddenId').value = id;
                document.getElementById('hiddenName').value = document.getElementById('newName').value;
                document.getElementById('hiddenAuthor').value = document.getElementById('newAuthor').value;
                document.getElementById('bnUpdate').click();
            }
        }
        
        //将当前行中的ID放入hiddenId并点击“删除”
        function Delete(id)
        ...{
            if(confirm('确定要删除吗？'))
            ...{
                document.getElementById('hiddenId').value = id;
                document.getElementById('bnDelete').click();
            }
        }
        
        //将当前行的RowIndx放入GVIndex并点击bnShowTextBox在当前行显示文本框
        function ShowTextBox(gvIndex)
        ...{
            document.getElementById('GVIndex').value = gvIndex;
            document.getElementById('bnShowTextBox').click();
        }
        
        //点击bnShowTextBox4New，显示用于创建的控件
        function ShowControl4New()
        ...{
            document.getElementById('bnShowTextBox4New').click();
        }
        
        //将新建数据暂存至控件并点击“创建”
        function CreateNew()
        ...{
            var newName = document.getElementById('createNewName').value;
            var newAuthor = document.getElementById('createNewAuthor').value;
            //检查是否为空
            if(newName == "" || newAuthor == "")
            ...{
                alert('不可为空');
                return;
            }
            document.getElementById('hiddenName').value = newName;
            document.getElementById('hiddenAuthor').value = newAuthor;
            document.getElementById('bnCreateNew').click();
        }

     script >
head >
< body >
     < form  id ="form1"  runat ="server" >
     < div >
         < table  width ="80%" >
             < tr >
                 < td  align ="center" >
                  < asp:GridView  ID ="gvBook"  runat ="server"  CellPadding ="4"  ForeColor ="#333333"  GridLines ="None"  OnRowDataBound ="gvBook_RowDataBound"  ShowFooter ="True"  EnableViewState ="False"  OnRowCreated ="gvBook_RowCreated" >
                     < FooterStyle  BackColor ="#990000"  Font-Bold ="True"  ForeColor ="White"   />
                     < RowStyle  BackColor ="#FFFBD6"  ForeColor ="#333333"   />
                     < PagerStyle  BackColor ="#FFCC66"  ForeColor ="#333333"  HorizontalAlign ="Center"   />
                     < SelectedRowStyle  BackColor ="#FFCC66"  Font-Bold ="True"  ForeColor ="Navy"   />
                     < HeaderStyle  BackColor ="#990000"  Font-Bold ="True"  ForeColor ="White"   />
                     < AlternatingRowStyle  BackColor ="White"   />
                      < Columns >
                          < asp:TemplateField  HeaderText ="操作" > asp:TemplateField >
                      Columns >
                 asp:GridView >
                 td >
             tr >
         table >
     div >
         < input  id ="hiddenId"  style ="display:none"  type ="text"  runat ="server"   />
         < input  id ="hiddenName"  style ="display:none"  type ="text"  runat ="server"   />
         < input  id ="hiddenAuthor"  style ="display:none"  type ="text"  runat ="server"   />
         < input  id ="GVIndex"  style ="display:none"  type ="text"  runat ="server"   />
         < asp:Button  ID ="bnUpdate"  runat ="server"  style ="display:none"  Text ="Update"  OnClick ="bnUpdate_Click"   />
         < asp:Button  ID ="bnShowTextBox"  runat ="server"  style ="display:none"  Text ="ShowTextBox"  OnClick ="bnShowTextBox_Click"   />
         < asp:Button  ID ="bnShowTextBox4New"  runat ="server"  OnClick ="bnShowTextBox4New_Click"  Style ="display:none"  Text ="ShowTextBox4New"   />
         < asp:Button  ID ="bnCreateNew"  runat ="server"  OnClick ="bnCreateNew_Click"  Style ="display:none"  Text ="CreateNew"   />
         < asp:Button  ID ="bnDelete"  runat ="server"  OnClick ="bnDelete_Click"  Style ="display:none"  Text ="Delete"   />
     form >
body >
html >

Main.aspx.cs:

using  System;
using  System.Data;
using  System.Configuration;
using  System.Collections;
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;

public   partial   class  Main : System.Web.UI.Page
... {
    protected void Page_Load(object sender, EventArgs e)
    ...{
        GVBind();
    }

    /**//// 

    /// 绑定GridView数据源
    /// 

    protected void GVBind()
    ...{
        if (CBook.GetData() != null)
        ...{
            gvBook.DataSource = CBook.GetData();
            gvBook.DataBind();
        }
    }

    //向各行“操作”列写入“功能键”
    protected void gvBook_RowDataBound(object sender, GridViewRowEventArgs e)
    ...{
        if (e.Row.RowType == DataControlRowType.DataRow)
        ...{
            e.Row.Cells[0].Text = "新建  ";
            e.Row.Cells[0].Text += "" + e.Row.RowIndex + ")'>修改  ";
            e.Row.Cells[0].Text += "" + e.Row.Cells[1].Text + ")'>删除";
        }
    }

    //显示用于修改的文本框
    protected void bnShowTextBox_Click(object sender, EventArgs e)
    ...{
        int index;
        if (Int32.TryParse(GVIndex.Value, out index))
        ...{
            gvBook.Rows[index].Cells[2].Text = "" + gvBook.Rows[index].Cells[2].Text + "' />";
            gvBook.Rows[index].Cells[3].Text = "" + gvBook.Rows[index].Cells[3].Text + "' />";
            gvBook.Rows[index].Cells[0].Text = "" + gvBook.Rows[index].Cells[1].Text + ")'>确定";
        }
    }
    
    //执行修改
    protected void bnUpdate_Click(object sender, EventArgs e)
    ...{
        try
        ...{
            int id;
            if (Int32.TryParse(hiddenId.Value, out id) && hiddenName.Value != string.Empty && hiddenAuthor.Value != string.Empty)
            ...{
                CBook.Update(id, hiddenName.Value, hiddenAuthor.Value);
                CBook.ShowMessage(this, "修改成功");
                GVBind();
            }
            else
            ...{
                CBook.ShowMessage(this, "输入有误，请检查");
            }
        }
        catch (Exception ex)
        ...{
            CBook.ShowMessage(this, ex.Message);
        }
    }

    //显示用于创建的文本框及按钮
    protected void bnShowTextBox4New_Click(object sender, EventArgs e)
    ...{
        gvBook.FooterRow.Cells[0].Text = "请输入新记录信息：";
        gvBook.FooterRow.Cells[1].Text = "";
        gvBook.FooterRow.Cells[2].Text = " ";
    }

    //执行创建
    protected void bnCreateNew_Click(object sender, EventArgs e)
    ...{
        try
        ...{
            CBook.Insert(hiddenName.Value, hiddenAuthor.Value);
            CBook.ShowMessage(this, "创建成功");
            GVBind();
        }
        catch(Exception ex)
        ...{
            CBook.ShowMessage(this, ex.Message);
        }
    }

    //执行删除
    protected void bnDelete_Click(object sender, EventArgs e)
    ...{
        try
        ...{
            int id;
            if (Int32.TryParse(hiddenId.Value, out id))
            ...{
                CBook.Delete(id);
                CBook.ShowMessage(this, "删除成功");
                GVBind();
            }
        }
        catch (Exception ex)
        ...{
            CBook.ShowMessage(this, ex.Message);
        }
    }

    //隐藏ID列
    protected void gvBook_RowCreated(object sender, GridViewRowEventArgs e)
    ...{
        if (e.Row.RowType == DataControlRowType.DataRow || e.Row.RowType == DataControlRowType.Header)
        ...{
            e.Row.Cells[1].Visible = false;
        }
    }
}

CBook.cs：

using  System;
using  System.Data;
using  System.Data.OleDb;
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;

/**/ /// 

/// Summary description for CBook
/// 

public   class  CBook
... {
    /**//// 

    /// DB连接字符串
    /// 

    private static string connString = System.Configuration.ConfigurationManager.AppSettings["provider"].ToString() 
                              + System.Web.HttpContext.Current.Server.MapPath(ConfigurationManager.AppSettings["dbPath"]) + ";";
    public CBook()
    ...{
        //
        // TODO: Add constructor logic here
        //
    }

    /**//// 

    /// Execute sql NonQuery(insert,delete,update)
    /// 

    /// sql
    /// OleDbParameter数组
    private static void ExeNonQuery(string sql, OleDbParameter[] parameters)
    ...{
        OleDbConnection conn = new OleDbConnection(connString);
        try
        ...{
            conn.Open();

            OleDbCommand cmd = new OleDbCommand(sql, conn);

            cmd.Parameters.AddRange(parameters);
            cmd.ExecuteNonQuery();
        }
        catch
        ...{
            throw;
        }
        finally
        ...{
            conn.Close();
        }
    }

    /**//// 

    /// 修改
    /// 

    public static void Update(int id, string bookName, string author)
    ...{
        string sql = "update tableBook set BookName=@bookName,BookAuthor=@author where ID=@id";

        OleDbParameter[] parameters = new OleDbParameter[3];
        parameters[0] = new OleDbParameter("@bookName", bookName);
        parameters[1] = new OleDbParameter("@author", author);
        parameters[2] = new OleDbParameter("@id", id);

        ExeNonQuery(sql, parameters);
    }

    /**//// 

    /// 插入
    /// 

    public static void Insert(string bookName, string author)
    ...{
        string sql = "insert into tableBook (bookName,BookAuthor)values(@bookName,@author)";

        OleDbParameter[] parameters = new OleDbParameter[2];
        parameters[0] = new OleDbParameter("@bookName", bookName);
        parameters[1] = new OleDbParameter("@author", author);

        ExeNonQuery(sql, parameters);
    }

    /**//// 

    /// 删除
    /// 

    /// 
    public static void Delete(int id)
    ...{
        string sql = "delete from tableBook where ID=@id";
        OleDbParameter paraID = new OleDbParameter("@id", id);

        ExeNonQuery(sql, new OleDbParameter[] ...{ paraID });
    }
    /**//// 

    /// 返回DB中所有数据
    /// 

    /// 
    public static DataTable GetData()
    ...{
        OleDbConnection conn = new OleDbConnection(connString);
        try
        ...{
            conn.Open();
            string sql = "select * from tableBook";
            OleDbDataAdapter adapter = new OleDbDataAdapter(sql, conn);
            DataSet ds = new DataSet();
            adapter.Fill(ds, "bookTable");
            DataTable dt = ds.Tables[0];
            return dt;
        }
        catch
        ...{
            throw;
            return null;
        }
        finally
        ...{
            conn.Close();
        }
    }

    public static void ShowMessage(Page page, string msgInfo)
    ...{
        page.Response.Write("");
    }
}