日期:2014-05-19  浏览次数:20522 次

重载方法未获取参数问题
调用this.New_DeleteCommand();方法时出现错误
“重载News_DeleteCommand方法未获取“0”参数”
不知道该获得什么参数,望各位大虾提醒,谢谢```在线等


private   void   Page_Load(object   sender,   System.EventArgs   e)
{
if(!IsPostBack)
{
    DataSet   dset=new   DataSet();
stringconn= "Provider=Microsoft.Jet.OLEDB.4.0;DataSource=d:/news/mdb/etwldbs.mdb ";
    string   comm= "select   id,SortName,title   from   news ";
    OleDbDataAdapter   odr=new   OleDbDataAdapter(comm,conn);
    odr.Fill(dset);
    repeater1.DataSource=dset.Tables[0].DefaultView;
    repeater1.DataBind();
    }
}
private   void   News_DeleteCommand(object   source,System.Web.UI.WebControls.RepeaterCommandEventArgs   e)
{
    if(e.CommandName== "dealnews ")
    {
    HtmlInputHidden   hih=(HtmlInputHidden)e.Item.FindControl( "NewsID ");
    int   newsid=Convert.ToInt32(hih.Value);
    this.DeleteNews(newsid);
    }
}
private   void   DeleteNews(int   ID)
{
      OleDbConnection   conn=new   OleDbConnection( "Provider=Microsoft.Jet.OLEDB.4.0;Data  
Source=d:/news/mdb/etwldbs.mdb ");
      conn.Open();
      string   sql= "delete   news   where   id=ID ";
      OleDbCommand   cmd=new   OleDbCommand(sql,conn);
      cmd.Parameters[ "@id "].Value=ID;
      cmd.ExecuteNonQuery();
      cmd.Dispose();
      conn.Close();
      conn.Dispose();
      Response.Redirect( "dealnews.aspx ");
}

private   void   dealButton_Click(object   sender,   System.EventArgs   e)
{
      this.News_DeleteCommand();
}




------解决方案--------------------
第一个参数:object source,---可以将News控件对象赋上
第二个参数:System.Web.UI.WebControls.RepeaterCommandEventArgs e 可以构造一个RepeaterCommandEventArgs 实例

RepeaterCommandEventArgs ee=new RepeaterCommandEventArgs();
ee.CommandName== "dealnews ";
this.News_DeleteCommand(this.News,ee);----