캡처 DropDownList 인덱스 그리드 뷰 내부에서 이벤트 변경

Question

GridView 컨트롤 안에 놓은 드롭 다운 목록에 대해 SelectedIndexChanged 이벤트를 캡처하려고합니다. 그것은 잘 다시 게시하지만 내 SelectedIndexChanged 이벤트 처리기로 이동하지 않습니다. 여기 내 코드는

DropDownList myddl; 
    protected void Page_Load(object sender, EventArgs e) 
    { 
     this.myGridview.RowDataBound += new GridViewRowEventHandler(myGridview_RowDataBound); 
     myddl = new DropDownList(); 
     myddl.SelectedIndexChanged += new EventHandler(myddl_SelectedIndexChanged); 
     if (!Page.IsPostBack) 
     { 
      List<Team> teams = giveMeTeams(); 
      this.myGridview.DataSource = teams; 
      this.myGridview.AutoGenerateColumns = false; 

      BoundField col1 = new BoundField(); 
      col1.DataField = "Name"; 
      this.myGridview.Columns.Add(col1); 

      BoundField col2 = new BoundField(); 
      col2.DataField = "Sport"; 
      this.myGridview.Columns.Add(col2); 

      BoundField col3 = new BoundField(); 
      col3.DataField = "Status"; 
      this.myGridview.Columns.Add(col3); 

      this.myGridview.DataBind(); 
     } 
    } 

    void myGridview_RowDataBound(object sender, GridViewRowEventArgs e) 
    { 
     myddl = new DropDownList(); 
     myddl.SelectedIndexChanged += new EventHandler(myddl_SelectedIndexChanged); 
     List<string> items = new List<string>(); 
     items.Add("good"); 
     items.Add("bad"); 
     myddl.DataSource = items; 
     myddl.AutoPostBack = true; 
     myddl.DataBind(); 
     e.Row.Cells[2].Controls.Add(myddl); 
    } 

    void myddl_SelectedIndexChanged(object sender, EventArgs e) 
    { 
     string temp = "In Here"; //neve hits this code 
    } 

    private List<Team> giveMeTeams() 
    { 
     Teams teams = new Teams(); 
     teams.Add(new Team("RedWings", "Hockey", "good")); 
     teams.Add(new Team("Lions", "Football", "bad")); 
     teams.Add(new Team("Packers", "Football", "good")); 
     return teams; 
    } 

어떤 도움을 주시면 감사하겠습니다. 감사합니다,

편집 댓글

당신이 제안 ... 아직도 다시 게시물을 캡처하고 있지 않다 나는이 시도

에 따라. 여기 내 새로운 코드

 void myGridview_RowCreated(object sender, GridViewRowEventArgs e) 
    { 
     DropDownList myddl = new DropDownList(); 
     myddl = new DropDownList(); 
     myddl.SelectedIndexChanged += new EventHandler(myddl_SelectedIndexChanged); 
     myddl.ID = "MyID" + e.Row.RowIndex.ToString(); 
     e.Row.Cells[2].Controls.Add(myddl); 
    } 

    void myGridview_RowDataBound(object sender, GridViewRowEventArgs e) 
    { 
     DropDownList myddl = e.Row.FindControl("MyID" + e.Row.RowIndex.ToString()) as DropDownList; 
     //myddl.SelectedIndexChanged += new EventHandler(myddl_SelectedIndexChanged); 
     List<string> items = new List<string>(); 
     items.Add("good"); 
     items.Add("bad"); 
     myddl.DataSource = items; 
     myddl.DataMember = "Status"; 
     myddl.AutoPostBack = true; 
     myddl.DataBind(); 
     e.Row.Cells[2].Controls.Add(myddl); 
    } 

여전히 내 myddl_SelectedIndexChanged() 이벤트 핸들러로하지 않을이다.

Answer 1

Grid의 RowCreated에 해당 드롭 다운 목록을 만들고 ID를 할당하십시오. e.Row.FindControl("MyDropdownlistID")을 통해 RowDataBound에서 이러한 드롭 다운에 대한 참조를 가져 와서 데이터 소스에 바인딩합니다.