下拉列表事件

我有一個web表單，其中我已經下降了6個dropdownlist，每個dropdownlist都有前7個日期來打開文件從文件名結尾的日期連接的特定文件夾。問題是，當我選擇第一個下拉列表列表打開文件的罰款，但是當我從其他dropdownlist選擇一個日期打開文件，然後它打開從第一個dropdownlist打開相同的文件。請參閱代碼，並在其中進行更正。下拉列表事件

我的代碼是貝婁

Imports System 
Imports System.Data 
Imports System.Configuration 
Imports System.Web 
Imports System.Web.Security 
Imports System.Web.UI 
Imports System.Web.UI.WebControls 
Imports System.Web.UI.WebControls.WebParts 
Imports System.Web.UI.HtmlControls 
Imports System.IO 
Imports System.Data.SqlClient 
Imports System.Diagnostics.Process 
Imports Excel = Microsoft.Office.Interop.Excel 
Imports System.Drawing 
Imports System.Drawing.Drawing2D 
Imports System.Console 
Partial Class DashBoard 
    Inherits System.Web.UI.Page 
    Protected Sub DD1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DD1.SelectedIndexChanged 
     Response.Redirect("Reports/Daily Production and Stock Report (Crescent Ujala)/Daily Production and Stock Report (Crescent Ujala) " & DD1.SelectedValue & ".xls") 
    End Sub 
    Protected Sub DD2_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DD2.SelectedIndexChanged 
     Response.Redirect("Reports/Daily Production Efficiency Report (Crescent Ujala)/Daily Production Efficiency Report (Crescent Ujala) " & DD2.SelectedItem.Value.ToString & ".pdf") 
    End Sub 
    Protected Sub DD3_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DD3.SelectedIndexChanged 
     Response.Redirect("Reports/September Sowing Report/September Sowing Report " & DD3.SelectedItem.Value.ToString & ".ods") 
    End Sub 
    Protected Sub DD4_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DD4.SelectedIndexChanged 
     Response.Redirect("Reports/September Sowing Report Area-1/September Sowing Report Area-1 " & DD4.SelectedItem.Value.ToString & ".ods") 
    End Sub 
    Protected Sub DD5_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles dd5.SelectedIndexChanged 
     Response.Redirect("Reports/September Sowing Report Area-2/September Sowing Report Area-2 " & dd5.SelectedItem.Value.ToString & ".ods") 
    End Sub 
    Protected Sub DD6_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles DD6.SelectedIndexChanged 
     Response.Redirect("Reports/Daily P & L Cost sheet/Daily P & L Cost sheet. " & DD6.SelectedValue & ".xls") 
    End Sub 
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 
     'Add Values to Dropdownlist 1 
     DD1.Items.Add(New ListItem("", "")) 
     DD1.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -1, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -1, Now), "yyyy.MM.dd"))) 
     DD1.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -2, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -2, Now), "yyyy.MM.dd"))) 
     DD1.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -3, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -3, Now), "yyyy.MM.dd"))) 
     DD1.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -4, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -4, Now), "yyyy.MM.dd"))) 
     DD1.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -5, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -5, Now), "yyyy.MM.dd"))) 
     DD1.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -6, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -6, Now), "yyyy.MM.dd"))) 
     DD1.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -7, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -7, Now), "yyyy.MM.dd"))) 
     'Add Values to Dropdownlist 2 

     DD2.Items.Add(New ListItem("", "")) 
     DD2.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -1, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -1, Now), "yyyy.MM.dd"))) 
     DD2.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -2, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -2, Now), "yyyy.MM.dd"))) 
     DD2.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -3, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -3, Now), "yyyy.MM.dd"))) 
     DD2.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -4, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -4, Now), "yyyy.MM.dd"))) 
     DD2.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -5, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -5, Now), "yyyy.MM.dd"))) 
     DD2.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -6, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -6, Now), "yyyy.MM.dd"))) 
     DD2.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -7, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -7, Now), "yyyy.MM.dd"))) 
     'Add Values to Dropdownlist 3 

     DD3.Items.Add(New ListItem("", "")) 
     DD3.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -1, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -1, Now), "yyyy.MM.dd"))) 
     DD3.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -2, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -2, Now), "yyyy.MM.dd"))) 
     DD3.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -3, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -3, Now), "yyyy.MM.dd"))) 
     DD3.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -4, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -4, Now), "yyyy.MM.dd"))) 
     DD3.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -5, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -5, Now), "yyyy.MM.dd"))) 
     DD3.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -6, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -6, Now), "yyyy.MM.dd"))) 
     DD3.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -7, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -7, Now), "yyyy.MM.dd"))) 
     'Add Values to Dropdownlist 4 

     DD4.Items.Add(New ListItem("", "")) 
     DD4.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -1, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -1, Now), "yyyy.MM.dd"))) 
     DD4.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -2, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -2, Now), "yyyy.MM.dd"))) 
     DD4.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -3, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -3, Now), "yyyy.MM.dd"))) 
     DD4.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -4, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -4, Now), "yyyy.MM.dd"))) 
     DD4.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -5, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -5, Now), "yyyy.MM.dd"))) 
     DD4.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -6, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -6, Now), "yyyy.MM.dd"))) 
     DD4.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -7, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -7, Now), "yyyy.MM.dd"))) 
     'Add Values to Dropdownlist 5 

     dd5.Items.Add(New ListItem("", "")) 
     dd5.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -1, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -1, Now), "yyyy.MM.dd"))) 
     dd5.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -2, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -2, Now), "yyyy.MM.dd"))) 
     dd5.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -3, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -3, Now), "yyyy.MM.dd"))) 
     dd5.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -4, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -4, Now), "yyyy.MM.dd"))) 
     dd5.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -5, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -5, Now), "yyyy.MM.dd"))) 
     dd5.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -6, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -6, Now), "yyyy.MM.dd"))) 
     dd5.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -7, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -7, Now), "yyyy.MM.dd"))) 
     'Add Values to Dropdownlist 6 
     DD6.Items.Add(New ListItem("", "")) 
     DD6.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -1, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -1, Now), "yyyy.MM.dd"))) 
     DD6.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -2, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -2, Now), "yyyy.MM.dd"))) 
     DD6.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -3, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -3, Now), "yyyy.MM.dd"))) 
     DD6.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -4, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -4, Now), "yyyy.MM.dd"))) 
     DD6.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -5, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -5, Now), "yyyy.MM.dd"))) 
     DD6.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -6, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -6, Now), "yyyy.MM.dd"))) 
     DD6.Items.Add(New ListItem(Format(DateAdd(DateInterval.Day, -7, Now), "dd MMM"), Format(DateAdd(DateInterval.Day, -7, Now), "yyyy.MM.dd"))) 


    End Sub 
End Class

來源

2011-10-21 Adeel Aslam

它由於緩存將存儲細節，所以總是會打開同一個。每次刷新/清除高速緩存以解決此問題。 –

親愛的那裏也存在另一個問題。當我選擇最後一個下拉列表時，它打開文件罰款，也當我選擇任何其他dd它也打開文件罰款，但是當第一次打開第一個dd，然後如果打開任何其他打開相同從第一個開始的文件 –

你檢查，以確保該OnChange事件對其他下拉列表的引用代碼中的正確方法是什麼？他們可能都參考DD1_SelectedIndexChanged。

順便說一句，你真的應該考慮重構一些你的代碼，因爲你有lot在那裏重複。列表人口代碼應該真的移到On_Init事件中。

來源

2011-10-21 10:08:41 Kasaku

沒有親愛的它不工作在初始化過的情況是一樣的 –

這不是一個完整的解決方案，只是一個關於如何改進你的代碼的建議。你檢查了事件是否正確定義？ – Kasaku

代碼之前，你檢查它，並告訴我在哪裏是錯誤 –

把你的IsPostaback，下拉列表的結合按以下

邏輯如果沒有page.ispostback

//然後綁定

結束時，如果

來源

2011-10-21 10:18:59

我已經做了艾倫，但所有徒勞的PLZ告訴我另一種解決方案 –

下拉列表事件

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