GridView基础知识

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                                        快速预览:
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1.GridView无代码分页排序

 

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:

后台代码:
你可以使用sqlhelper,本文没用。代码如下:

代码 


Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->
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.Data.SqlClient;

public partial class _Default : System.Web.UI.Page 
{

//清清月儿http://blog.csdn.net/21aspnet 
    SqlConnection sqlcon;
    SqlCommand sqlcom;
    string strCon = "Data Source=(local);Database=数据库名;Uid=帐号;Pwd=密码";
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            bind();
        }
    }
    protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
    {
        GridView1.EditIndex = e.NewEditIndex;
        bind();
    }

//删除
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        string sqlstr = "delete from 表 where id='" + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcon = new SqlConnection(strCon);
        sqlcom = new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        bind();
    }

//更新
    protected void GridView1_RowUpdating(object sender, GridViewUpdateEventArgs e)
    {
        sqlcon = new SqlConnection(strCon);
        string sqlstr = "update 表 set 字段1='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[1].Controls[0])).Text.ToString().Trim() + "',字段2='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[2].Controls[0])).Text.ToString().Trim() + "',字段3='"
            + ((TextBox)(GridView1.Rows[e.RowIndex].Cells[3].Controls[0])).Text.ToString().Trim() + "' where id='" 
            + GridView1.DataKeys[e.RowIndex].Value.ToString() + "'";
        sqlcom=new SqlCommand(sqlstr,sqlcon);
        sqlcon.Open();
        sqlcom.ExecuteNonQuery();
        sqlcon.Close();
        GridView1.EditIndex = -1;
        bind();
    }

//取消
    protected void GridView1_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
    {
        GridView1.EditIndex = -1;
        bind();
    }

//绑定
    public void bind()
    {
        string sqlstr = "select * from 表";
        sqlcon = new SqlConnection(strCon);
        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);
        DataSet myds = new DataSet();
        sqlcon.Open();
        myda.Fill(myds, "表");
        GridView1.DataSource = myds;
        GridView1.DataKeyNames = new string[] { "id" };//主键
        GridView1.DataBind();
        sqlcon.Close();
    }
}


前台主要代码
代码 


Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->
前台主要代码:
                            ... ...
<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" CellPadding="4"
                        ForeColor="#333333" GridLines="None" OnRowDeleting="GridView1_RowDeleting" OnRowEditing="GridView1_RowEditing"
                        OnRowUpdating="GridView1_RowUpdating" OnRowCancelingEdit="GridView1_RowCancelingEdit">
                        <FooterStyle BackColor="#990000" Font-Bold="True" ForeColor="White" />
                        <Columns>
                            <asp:BoundField DataField="身份证号码" HeaderText="用户ID" ReadOnly="True" />
                            <asp:BoundField DataField="姓名" HeaderText="用户姓名" />
                            <asp:BoundField DataField="员工性别" HeaderText="性别" />
                            <asp:BoundField DataField="家庭住址" HeaderText="家庭住址" />
                            <asp:CommandField HeaderText="选择" ShowSelectButton="True" />
                            <asp:CommandField HeaderText="编辑" ShowEditButton="True" />
                            <asp:CommandField HeaderText="删除" ShowDeleteButton="True" />
                        </Columns>
                        <RowStyle ForeColor="#000066" />
                        <SelectedRowStyle BackColor="#669999" Font-Bold="True" ForeColor="White" />
                        <PagerStyle BackColor="White" ForeColor="#000066" HorizontalAlign="Left" />
                        <HeaderStyle BackColor="#006699" Font-Bold="True" ForeColor="White" />
                    </asp:GridView>
代码
复制代码 

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

代码 



Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->后台代码:

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;

using System.Data.SqlClient;

public partial class Default3 : System.Web.UI.Page

{


//清清月儿的博客http://blog.csdn.net/21aspnet 

    SqlConnection sqlcon;

    string strCon = "Data Source=(local);Database=北风贸易;Uid=sa;Pwd=";

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            ViewState["SortOrder"] = "身份证号码";

            ViewState["OrderDire"] = "ASC";

            bind();

        }

    }

    protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)

    {

        string sPage = e.SortExpression;

        if (ViewState["SortOrder"].ToString() == sPage)

        {

            if (ViewState["OrderDire"].ToString() == "Desc")

                ViewState["OrderDire"] = "ASC";

            else

                ViewState["OrderDire"] = "Desc";

        }

        else

        {

            ViewState["SortOrder"] = e.SortExpression;

        }

        bind();

    }


    public void bind()

    {

        

        string sqlstr = "select top 5 * from 飞狐工作室";

        sqlcon = new SqlConnection(strCon);

        SqlDataAdapter myda = new SqlDataAdapter(sqlstr, sqlcon);

        DataSet myds = new DataSet();

        sqlcon.Open();

        myda.Fill(myds, "飞狐工作室");

        DataView view = myds.Tables["飞狐工作室"].DefaultView;

        string sort = (string)ViewState["SortOrder"] + " " + (string)ViewState["OrderDire"];

        view.Sort = sort;

        GridView1.DataSource = view;

        GridView1.DataBind();

        sqlcon.Close();

    }

}



详细见http://www.cnblogs.com/sufei/archive/2010/03/27/1698590.html

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