本期内容： GridView无代码分页排序 GridView选中，编辑，取消，删除 GridView正反双向排序 GridView和下拉菜单DropDownList结合 1.GridView无代码分页排序： 效果图：1.AllowSorting设为True，aspx代码中是AllowSorting="True"； 2.默认1页10条，如果要修改每页条数，修改PageSize即可，在aspx代码中是PageSize="12"。 3.默认的是单向排序的，右击GridView弹出“属性”，选择AllowSorting为True即可。 2.GridView选中，编辑，取消，删除： 效果图：
后台代码： 你可以使用sqlhelper,本文没用。代码如下： 1using System; 2using System.Data; 3using System.Configuration; 4using System.Web; 5using System.Web.Security; 6using System.Web.UI; 7using System.Web.UI.WebControls; 8using System.Web.UI.WebControls.WebParts; 9using System.Web.UI.HtmlControls; 10using System.Data.SqlClient; 11 12public partial class _Default : System.Web.UI.Page 13{ 14 //清清月儿http://blog.csdn.net/21aspnet 15 SqlConnection sqlcon; 16 SqlCommand sqlcom; 17 string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码"; 18 protected void Page_Load(object sender, EventArgs e) 19 { 20 if (!IsPostBack) 21 { 22 bind(); 23 } 24 } 25 protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e) 26 { 27 GridView1.EditIndex = e.NewEditIndex; 28 bind(); 29 } 30 31 //删除 32 protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e) 33 { 34 string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'"; 35 sqlcon = new SqlConnection(strCon); 36 sqlcom = new SqlCommand(sqlstr,sqlcon); 37 sqlcon.Open(); 38 sqlcom.ExecuteNonQuery(); 39 sqlcon.Close(); 40 bind(); 41 } 42 43 //更新 44 protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e) 45 { 46 sqlcon = new SqlConnection(strCon); 47 string sqlstr = "update 表 set 字段1='" 48 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='" 49 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='" 50 + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='" 51 + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'"; 52 sqlcom=new SqlCommand(sqlstr,sqlcon); 53 sqlcon.Open(); 54 sqlcom.ExecuteNonQuery(); 55 sqlcon.Close(); 56 GridView1.EditIndex = -1; 57 bind(); 58 } 59 60 //取消 61 protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e) 62 { 63 GridView1.EditIndex = -1; 64 bind(); 65 } 66 67 //绑定 68 public void bind() 69 { 70 string sqlstr = "select * from 表"; 71 sqlcon = new SqlConnection(strCon); 72 SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); 73 DataSet myds = new DataSet(); 74 sqlcon.Open(); 75 myda.Fill(myds, "表"); 76 GridView1.DataSource = myds; 77 GridView1.DataKeyNames = new string[] { "id" };//主键 78 GridView1.DataBind(); 79 sqlcon.Close(); 80 } 81} 82 83 前台主要代码： 1<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4" 2 ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing" 3 OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit"> 4 <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" /> 5 <Columns> 6 <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" /> 7 <asp:BoundField DataField="姓名" HeaderText="用户姓名" /> 8 <asp:BoundField DataField="员工性别" HeaderText="性别" /> 9 <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" /> 10 <asp:CommandField HeaderText="选择" ShowSelectButton="True" /> 11 <asp:CommandField HeaderText="编辑" ShowEditButton="True" /> 12 <asp:CommandField HeaderText="删除" ShowDeleteButton="True" /> 13 </Columns> 14 <RowStyle ForeColor="#000066" /> 15 <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" /> 16 <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" /> 17 <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" /> 18</asp:GridView> 19 3.GridView正反双向排序： 效果图：点姓名各2次的排序，点其他也一样可以。
后台代码： 1using System; 2using System.Data; 3using System.Configuration; 4using System.Collections; 5using System.Web; 6using System.Web.Security; 7using System.Web.UI; 8using System.Web.UI.WebControls; 9using System.Web.UI.WebControls.WebParts; 10using System.Web.UI.HtmlControls; 11using System.Data.SqlClient; 12public partial class Default3 : System.Web.UI.Page 13{ 14 //清清月儿的博客http://blog.csdn.net/21aspnet 15 SqlConnection sqlcon; 16 string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd="; 17 protected void Page_Load(object sender, EventArgs e) 18 { 19 if (!IsPostBack) 20 { 21 ViewState["SortOrder"] = "身份证号码"; 22 ViewState["OrderDire"] = "ASC"; 23 bind(); 24 } 25 } 26 protected void GridView1_Sorting(object sender, GridViewSortEventArgs e) 27 { 28 string sPage = e.SortExpression; 29 if (ViewState["SortOrder"].ToString() == sPage) 30 { 31 if (ViewState["OrderDire"].ToString() == "Desc") 32 ViewState["OrderDire"] = "ASC"; 33 else 34 ViewState["OrderDire"] = "Desc"; 35 } 36 else 37 { 38 ViewState["SortOrder"] = e.SortExpression; 39 } 40 bind(); 41 } 42 43 public void bind() 44 { 45 46 string sqlstr = "select top 5 * from 飞狐工作室"; 47 sqlcon = new SqlConnection(strCon); 48 SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); 49 DataSet myds = new DataSet(); 50 sqlcon.Open(); 51 myda.Fill(myds, "飞狐工作室"); 52 DataView view = myds.Tables["飞狐工作室"].DefaultView; 53 string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"]; 54 view.Sort = sort; 55 GridView1.DataSource = view; 56 GridView1.DataBind(); 57 sqlcon.Close(); 58 } 59} 60 61 前台主要代码： 1<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False" 2 CellPadding="3" Font-Size="9pt" OnSorting="GridView1_Sorting" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"> 3 <FooterStyle BackColor="White" ForeColor="#000066" /> 4 <Columns> 5 <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" /> 6 <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/> 7 <asp:BoundField DataField="员工性别" HeaderText="性别" SortExpression="员工性别"/> 8 <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/> 9 10 </Columns> 11 <RowStyle ForeColor="#000066" /> 12 <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" /> 13 <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" /> 14 <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" /> 15</asp:GridView> 16 4.GridView和下拉菜单DropDownList结合： 效果图：
后台代码： 1using System; 2using System.Data; 3using System.Configuration; 4using System.Collections; 5using System.Web; 6using System.Web.Security; 7using System.Web.UI; 8using System.Web.UI.WebControls; 9using System.Web.UI.WebControls.WebParts; 10using System.Web.UI.HtmlControls; 11using System.Data.SqlClient; 12public partial class Default4 : System.Web.UI.Page 13{ 14 SqlConnection sqlcon; 15 string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=sa"; 16 protected void Page_Load(object sender, EventArgs e) 17 { 18 DropDownList ddl; 19 if (!IsPostBack) 20 { 21 string sqlstr = "select top 5 * from 飞狐工作室"; 22 sqlcon = new SqlConnection(strCon); 23 SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon); 24 DataSet myds = new DataSet(); 25 sqlcon.Open(); 26 myda.Fill(myds, "飞狐工作室"); 27 GridView1.DataSource = myds; 28 GridView1.DataBind(); 29 for (int i = 0; i <= GridView1.Rows.Count - 1; i++) 30 { 31 DataRowView mydrv = myds.Tables["飞狐工作室"].DefaultView[i]; 32 if (Convert.ToString(mydrv["员工性别"]).Trim() == "True") 33 { 34 ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1"); 35 ddl.SelectedIndex = 0; 36 } 37 if (Convert.ToString(mydrv["员工性别"]).Trim() == "False") 38 { 39 ddl = (DropDownList)GridView1.Rows[i].FindControl("DropDownList1"); 40 ddl.SelectedIndex = 1; 41 } 42 } 43 sqlcon.Close(); 44 } 45 } 46 public SqlDataReader ddlbind() 47 { 48 string sqlstr = "select distinct 员工性别 from 飞狐工作室"; 49 sqlcon = new SqlConnection(strCon); 50 SqlCommand sqlcom = new SqlCommand(sqlstr, sqlcon); 51 sqlcon.Open(); 52 return sqlcom.ExecuteReader(); 53 } 54} 前台主要代码： 1<asp:GridView ID="GridView1" runat="server" AllowSorting="True" AutoGenerateColumns="False" 2 CellPadding="3" Font-Size="9pt" BackColor="White" BorderColor="#CCCCCC" BorderStyle="None" BorderWidth="1px"> 3 <FooterStyle BackColor="White" ForeColor="#000066" /> 4 <Columns> 5 <asp:BoundField DataField="身份证号码" HeaderText="用户ID" SortExpression="身份证号码" /> 6 <asp:BoundField DataField="姓名" HeaderText="用户姓名" SortExpression="姓名"/> 7 <asp:TemplateField HeaderText="员工性别"> 8 <ItemTemplate> 9 <asp:DropDownList ID="DropDownList1" runat="server" DataSource='<%# ddlbind()%>' DataValueField="员工性别" DataTextField="员工性别"> 10 </asp:DropDownList> 11 </ItemTemplate> 12 </asp:TemplateField> 13 <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" SortExpression="家庭住址"/> 14 15 </Columns> 16 <RowStyle ForeColor="#000066" /> 17 <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" /> 18 <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" /> 19 <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" /> 20</asp:GridView>
