GridView 行交换 GridView 行上移下移

来源：互联网发布：kindle编程珠玑编辑：程序博客网时间：2024/05/08 22:07
using System;using System.Configuration;using System.Data;//using System.Linq;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.HtmlControls;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;//using System.Xml.Linq; public partial class _Default : System.Web.UI.Page {    protected void Page_Load(object sender, EventArgs e)    {        if (!IsPostBack)        {            DataTable dt = CreateDataTable();             GridView1.DataSource = dt;            GridView1.DataBind();        }     }    /// <summary>    ///     /// </summary>    /// <param name="dt"></param>    /// <returns></returns>    public DataTable CreateDataTable()    {        DataTable dt = new DataTable();                //DataColumn dc=dt.n        dt.Columns.Add("id", typeof(Int16));        dt.Columns.Add("name", typeof(String));        dt.Columns.Add("age", typeof(Int16));        for (int i = 0; i < 6; i++)        {            DataRow dr = dt.NewRow();            dr["id"] = i;            dr["name"] = "aa"+i.ToString();;            dr["age"] = 12+i;                        dt.Rows.Add(dr);        }        ViewState["dataTable"] = dt;        return dt;    }    protected void exchangeRow(DataRow dataRow, DataRow tempRow)    {        tempRow["id"] = dataRow["id"];        tempRow["name"] = dataRow["name"];        tempRow["age"] = dataRow["age"];    }    protected void Button1_Click(object sender, EventArgs e)    {        DataTable dataTable = (DataTable)ViewState["dataTable"];        string rowindex=((GridViewRow)((Button)sender).Parent.Parent).RowIndex.ToString();         if (int.Parse(rowindex) - 1 < 0)        {            Page.RegisterStartupScript("", "<script>alert('TOP!');</script>");        }        else        {            DataRow tempRow = dataTable.NewRow();            exchangeRow(dataTable.Rows[int.Parse(rowindex) - 1], tempRow);            exchangeRow(dataTable.Rows[int.Parse(rowindex)], dataTable.Rows[int.Parse(rowindex) - 1]);            exchangeRow(tempRow, dataTable.Rows[int.Parse(rowindex)]);                    }        GridView1.DataSource = dataTable;        GridView1.DataBind();    }    protected void Button2_Click(object sender, EventArgs e)    {        DataTable dataTable = (DataTable)ViewState["dataTable"];        string rowindex = ((GridViewRow)((Button)sender).Parent.Parent).RowIndex.ToString();              if (int.Parse(rowindex) + 1 > dataTable.Rows.Count - 1)        {            Page.RegisterStartupScript("", "<script>alert('END!');</script>");        }        else        {             DataRow tempRow = dataTable.NewRow();            exchangeRow(dataTable.Rows[int.Parse(rowindex) + 1], tempRow);            exchangeRow(dataTable.Rows[int.Parse(rowindex)], dataTable.Rows[int.Parse(rowindex) + 1]);            exchangeRow(tempRow, dataTable.Rows[int.Parse(rowindex)]);        }        GridView1.DataSource = dataTable;        GridView1.DataBind();    }}
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