关于批量删除的问题，在线等，解决立刻给分...

<%@ Page language="c#" Codebehind="DataGrid翻页多选.aspx.cs" AutoEventWireup="false" Inherits="bsTest2005_8_16.Samples.DataGrid翻页多选" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>DataGrid翻页多选</title>
<meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
<meta name="CODE_LANGUAGE" Content="C#">
<meta name="vs_defaultClientScript" content="JavaScript">
<meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
<script language="javascript">
function selectAll(obj)
{
var i = 3;
var cbname = "DataGrid1__ctl"+i+"_CheckBox1";//DataGrid里嵌套的CheckBox的id是有规律的，利用之
while(document.getElementById(cbname)!=null && ((checkSelected() && obj.checked) || !obj.checked))
{
    document.getElementById(cbname).checked = obj.checked;
selectOne(document.getElementById(cbname));
i = i+1;
cbname = "DataGrid1__ctl"+i+"_CheckBox1";
}
}

function selectOne(obj)
{
var curID = obj.parentElement.parentElement.cells[1].innerText;
var selectedID = document.getElementById('TextBox1').value;
if(obj.checked)
{
if(selectedID.indexOf(curID)<0)
{
    if(checkSelected(obj))
    {
document.getElementById('TextBox1').value = selectedID + curID + ',';
var count = new Number(document.getElementById('TextBox2').value);
document.getElementById('TextBox2').value = count + 1;
}
else
{
obj.checked = false;
}
}
}
else
{
if(selectedID.indexOf(curID)>-1)
{
var count = new Number(document.getElementById('TextBox2').value);
document.getElementById('TextBox2').value = count - 1;
}
document.getElementById('TextBox1').value = selectedID.replace(curID,'').replace(",,",",");

}
}

function checkSelected(obj)
{
var count1 = new Number(document.getElementById('TextBox2').value);
var count2 = new Number(document.getElementById('TextBox3').value);
if(count1 >= count2)
{
alert("您好，请选择不多于"+count2+"条记录");
return false;
}
else
{
return true;

}
}
</script>
</HEAD>
<body MS_POSITIONING="GridLayout">
<form id="Form1" method="post" runat="server">
<TABLE id="Table1" style="Z-INDEX: 103; LEFT: 8px; POSITION: absolute; TOP: 8px" cellSpacing="0"
cellPadding="0" width="80%" border="0">
<TR>
<TD>隐藏域：
<asp:TextBox id="TextBox1" runat="server"></asp:TextBox>
<asp:TextBox id="TextBox2" runat="server" Width="40px">0</asp:TextBox></TD>
<TR>
<TD>最多选择
<asp:TextBox id="Textbox3" runat="server" Width="40px">4</asp:TextBox>条记录</TD>
</TR>
<TR id="tr1">
<TD id="td1">
<asp:DataGrid id="DataGrid1" runat="server" AutoGenerateColumns="False" PageSize="8" AllowPaging="True">
<Columns>
<asp:TemplateColumn>
<HeaderStyle HorizontalAlign="Center"></HeaderStyle>
<ItemStyle HorizontalAlign="Center"></ItemStyle>
<HeaderTemplate>
<asp:CheckBox id="CheckBoxAll" runat="server" Text="本页全选"></asp:CheckBox>
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox id="CheckBox1" runat="server"></asp:CheckBox>
</ItemTemplate>
</asp:TemplateColumn>
<asp:BoundColumn DataField="field1"></asp:BoundColumn>
<asp:BoundColumn DataField="field2"></asp:BoundColumn>
<asp:BoundColumn DataField="field3"></asp:BoundColumn>
</Columns>
</asp:DataGrid></TD>
</TR>
<TR>
<TD><asp:Button id="Button1" runat="server" Text="获得选中记录的id"></asp:Button></TD>
</TR>
</TABLE>
</form>
</body>
</HTML>

记录下选中记录的主键(id)delete from student where id in (xxx,xx,x);

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;namespace bsTest2005_8_16.Samples
{
/// <summary>
/// DataGrid翻页多选的摘要说明。
/// </summary>
public class DataGrid翻页多选 : System.Web.UI.Page
{
        protected System.Web.UI.WebControls.TextBox TextBox1;
        protected System.Web.UI.WebControls.Button Button1;
        protected System.Web.UI.WebControls.TextBox TextBox2;
        protected System.Web.UI.WebControls.TextBox Textbox6;
        protected System.Web.UI.WebControls.TextBox Textbox3;
        protected System.Web.UI.WebControls.DataGrid DataGrid1;

        private void Page_Load(object sender, System.EventArgs e)
        {
            if(!IsPostBack)
                BindData();

        }        private void BindData()
        {
            //模拟出一些原始数据绑定DataGrid
            DataTable dt1 = new DataTable();
            dt1.Columns.Add("field1");
            dt1.Columns.Add("field2");
            dt1.Columns.Add("field3");            Random radm = new Random();
            for(int i=1;i<30;i++)
                dt1.Rows.Add(new object[]{"id"+i.ToString(),(i+1)*(i+2)," ABC"+radm.Next(10000).ToString()});

            this.DataGrid1.DataSource=dt1;
            this.DataGrid1.DataBind();
        }        private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)
        {
            this.DataGrid1.CurrentPageIndex = e.NewPageIndex;
            BindData();
        }
        private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
        {
            if(e.Item.ItemType == ListItemType.Header)
            {
                CheckBox cb = e.Item.Cells[0].FindControl("CheckBoxAll") as CheckBox;
                cb.Attributes.Add("onclick","selectAll(this);");//本页全选或取消的脚本函数
            }
            if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
            {
                CheckBox cb = e.Item.Cells[0].FindControl("CheckBox1") as CheckBox;
                cb.Attributes.Add("onclick","selectOne(this);");//选中或取消当前行的脚本函数                //如果当前行已选，那么checkbox应该勾上
                string curID = e.Item.Cells[1].Text;
                if(this.TextBox1.Text.IndexOf(curID)>-1)
                    cb.Checked = true;
            }        }        private void Button1_Click(object sender, System.EventArgs e)
        {
            string a = this.TextBox1.Text;
            if(a.Length>0)
            {
                string sql = "delete from table1 where id in ("+a.TrimEnd(',')+")";                System.Data.OleDb.OleDbConnection cnn = new System.Data.OleDb.OleDbConnection("连接字符串");
                System.Data.OleDb.OleDbCommand cm = new System.Data.OleDb.OleDbCommand(sql,cnn);
                cnn.Open();
                int deletedRowsCount = cm.ExecuteNonQuery();
                cnn.Close();
            }
        } #region Web 窗体设计器生成的代码
override protected void OnInit(EventArgs e)
{
//
// CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}

/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
            this.DataGrid1.PageIndexChanged += new System.Web.UI.WebControls.DataGridPageChangedEventHandler(this.DataGrid1_PageIndexChanged);
            this.DataGrid1.ItemDataBound += new System.Web.UI.WebControls.DataGridItemEventHandler(this.DataGrid1_ItemDataBound);
            this.Button1.Click += new System.EventHandler(this.Button1_Click);
            this.Load += new System.EventHandler(this.Page_Load);        }
#endregion

}
}

给个大体思路把。我这里没有.net环境估计你是用模板列把checkbox嵌进去的把。
先插入个不可见的label
在checkbox的那列的html环境下,写上
label.text=<%#checkbox.checked? 1 : 0%>然后在批量提交的时候用个循环,判断每行的label的值.如果为1.就删除

批量删除有两个方法，一个是循环删除，一个是拼接id，用delete from table where id in...
下面的方法是获得id连接串
private string GetSelectedItemID(string controlID)
{
string selectedID;
selectedID = "";
//遍历DataGrid获得checked的ID
foreach (DataGridItem item in dbStaffList.Items)
{
if(((CheckBox)item.FindControl(controlID)).Checked==true )
selectedID += dbStaffList.DataKeys[item.ItemIndex] + ",";
}
if(selectedID.Length>0)
selectedID=selectedID.Substring(0,selectedID.Length-1);
return selectedID;
}

支持 junzhang4008(不会飞的猪) 的思路!

我还没有添加Checkbox复选框呢
只不过想用这种方法做
但不知道怎么搞

提交到后台，循环grid行，判断选中即删除，放在事务中处理也可以根据循环把关键字段装成字符串用delete in（）一次性删除

在问一下，如何把checkbox和DataGrid中的每条记录关联起来

这个功能我经常做用这个,把checkbox放在摸班里
同遍历单元格的checkbox,如果选种的话,就删除,

不如你去lovecherry.cnblogs.com看看里面的datagrid系列文章
http://lovecherry.cnblogs.com/lovecherry/archive/2005/07/15/193477.html
<%@ Page language="c#" Codebehind="WebForm4.aspx.cs" AutoEventWireup="false" Inherits="WebApplication25.WebForm4" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
    <HEAD>
        <title>WebForm4</title>
        <meta name="GENERATOR" Content="Microsoft Visual Studio .NET 7.1">
        <meta name="CODE_LANGUAGE" Content="C#">
        <meta name="vs_defaultClientScript" content="JavaScript">
        <meta name="vs_targetSchema" content="http://schemas.microsoft.com/intellisense/ie5">
    </HEAD>
    <body>
        <form id="Form1" method="post" runat="server">
            <asp:DataGrid id="DataGrid1" runat="server" AutoGenerateColumns="False" DataKeyField="EmployeeID">
                <Columns>
                    <asp:TemplateColumn>
                        <ItemTemplate>
                            <input type="hidden" id="SelectedID" runat="server" value='<%# Container.ItemIndex%>' name="SelectedID"/>
                            <asp:CheckBox ID="chkExport" Runat="server" />
                        </ItemTemplate>
                    </asp:TemplateColumn>
                    <asp:BoundColumn DataField="EmployeeID" HeaderText="EmployeeID"></asp:BoundColumn>
                    <asp:TemplateColumn HeaderText="FirstName">
                        <ItemTemplate>
                            <asp:Label ID="lab_FirstName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"FirstName")%>'>
                            </asp:Label>
                            <asp:TextBox ID="txt_FirstName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"FirstName")%>' Visible="False">
                            </asp:TextBox>
                        </ItemTemplate>
                    </asp:TemplateColumn>
                    <asp:TemplateColumn HeaderText="LastName">
                        <ItemTemplate>
                            <asp:Label ID="lab_LastName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"LastName")%>'>
                            </asp:Label>
                            <asp:TextBox ID="txt_LastName" Runat="server" Text='<%#DataBinder.Eval(Container.DataItem,"LastName")%>' Visible="False">
                            </asp:TextBox>
                        </ItemTemplate>
                    </asp:TemplateColumn>
                </Columns>
            </asp:DataGrid>
            <asp:Button id="Button1" runat="server" Text="编辑"></asp:Button>
            <asp:Button id="Button2" runat="server" Text="更新"></asp:Button>
        </form>
    </body>
</HTML>后台：using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.SqlClient;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;namespace WebApplication25
{
    /// <summary>
    /// WebForm4 的摘要说明。
    /// </summary>
    public class WebForm4 : System.Web.UI.Page
    {
        protected System.Web.UI.WebControls.Button Button1;
        protected System.Web.UI.WebControls.Button Button2;
        protected System.Web.UI.WebControls.DataGrid DataGrid1;
        protected System.Web.UI.HtmlControls.HtmlInputHidden SelectID;

        private void Page_Load(object sender, System.EventArgs e)
        {
            // 在此处放置用户代码以初始化页面
            if(!IsPostBack)
            {
                SetBind();
            }
        }        private void SetBind()
        {
            SqlConnection conn=new SqlConnection("server=srvxglai-sha;uid=sa;pwd=321413;database=northwind");
            SqlDataAdapter da=new SqlDataAdapter("select * from Employees",conn);
            DataSet ds=new DataSet();
            da.Fill(ds,"table1");
            this.DataGrid1.DataSource=ds.Tables["table1"];
            this.DataGrid1.DataBind();
        }
        #region Web 窗体设计器生成的代码
        override protected void OnInit(EventArgs e)
        {
            //
            // CODEGEN: 该调用是 ASP.NET Web 窗体设计器所必需的。
            //
            InitializeComponent();
            base.OnInit(e);
        }

        /// <summary>
        /// 设计器支持所需的方法 - 不要使用代码编辑器修改
        /// 此方法的内容。
        /// </summary>
        private void InitializeComponent()
        {
            this.Button1.Click += new System.EventHandler(this.Button1_Click);
            this.Button2.Click += new System.EventHandler(this.Button2_Click);
            this.Load += new System.EventHandler(this.Page_Load);        }
        #endregion        private void Button1_Click(object sender, System.EventArgs e)
        {
            foreach(DataGridItem di in this.DataGrid1.Items)
            {
                if(((CheckBox)di.FindControl("chkExport")).Checked==true)
                {
                    ((TextBox)di.FindControl("txt_FirstName")).Visible=true;
                    ((TextBox)di.FindControl("txt_LastName")).Visible=true;
                    ((Label)di.FindControl("lab_FirstName")).Visible=false;
                    ((Label)di.FindControl("lab_LastName")).Visible=false;
                }
            }         }        private void Button2_Click(object sender, System.EventArgs e)
        {
            foreach(DataGridItem di in this.DataGrid1.Items)
            {
                if(((CheckBox)di.FindControl("chkExport")).Checked==true)
                {
                    if(((TextBox)di.FindControl("txt_FirstName")).Text!=((Label)di.FindControl("lab_FirstName")).Text||((TextBox)di.FindControl("txt_LastName")).Text!=((Label)di.FindControl("lab_LastName")).Text)
                    {
                        Response.Write("记录号:"+this.DataGrid1.DataKeys[int.Parse(((HtmlInputHidden)di.FindControl("SelectedID")).Value)]+",FirstName:"+((TextBox)di.FindControl("txt_FirstName")).Text+",LastName:"+((TextBox)di.FindControl("txt_LastName")).Text+"<br>");
                    }
                    ((TextBox)di.FindControl("txt_FirstName")).Visible=false;
                    ((TextBox)di.FindControl("txt_LastName")).Visible=false;
                    ((Label)di.FindControl("lab_FirstName")).Visible=true;
                    ((Label)di.FindControl("lab_LastName")).Visible=true;
                    ((CheckBox)di.FindControl("chkExport")).Checked=false;
                }
            }
        }
    }
}

1、首先在ASPX页面中调用如下脚本信息
<script language="javascript">
function SelectAll (chkVal, idVal)
{
var thisfrm = document.forms[0];
for (i=0; i<thisfrm.length; i++) // 查找Forms里面所有的元素
{
if (idVal.indexOf ('chkAll') != -1)// 查找模板头中的CheckBox
{
if(chkVal == true)
{
thisfrm.elements[i].checked = true;
}
else
{
thisfrm.elements[i].checked = false;
}
}// if
else if (idVal.indexOf ('chkDetail') != -1)// 如果除题头以外的项没有全选上则取消题头的选择
{
if(thisfrm.elements[i].checked == false)
{
thisfrm.elements[1].checked = false;
}
}
}// for
}
</script>
2、在DataGrid数据绑定的时候DataGrid_ItemDataBound（），调用如下函数 /// <summary>
/// 给DataGrid控件上面的全选CheckBox加载点击属性
/// </summary>
private void DgdRender()
{
System.Web.UI.WebControls.CheckBox chk = (System.Web.UI.WebControls.CheckBox)dgMain.Controls[0].Controls[1].FindControl("chkAll");
chk.Attributes.Add("onclick","javascript:return SelectAll(this.checked,this.id)");
}
3、删除时尽量使用事务。
首先将要删除的信息项的主键记录下来，在和删除SQL合理绑定，在事务中一次性执行删除全部，才符合业务逻辑。
string tmpSQL = "DELETE FROM table WHERE MainID = '" + MainID1 + "'";
for(int i = 1 ; i < count ; i ++)
{
tmpSQL += " OR MainID = '" + MainIDi + "'";
}
在事务中执行删除
System.Data.SqlClient.SqlTransaction tran;
System.Data.SqlClient.SqlConnection con = new SqlConnection(Connection);//Connection连接字符串
System.Data.SqlClient.SqlCommand com = new SqlCommand(tmpSQLCarryOn,con);
con.Open();
tran = con.BeginTransaction();
try
{
com.Transaction = tran;
com.ExecuteNonQuery();
tran.Commit();
tmpResult = true;
}
catch(Exception ex)
{
string s = ex.Message;
tran.Rollback();
}

补充，在DataGrid中添加模板列，其中HeaderTemplate部分使用checkbox ： chkALL；而ItemTemplate部分使用checkbox ： chkDetail

调试易

关于批量删除的问题，在线等，解决立刻给分...

解决方案 »