填充字符串数组与ListBox在C＃中选定的项目＃

Question

我有一个ListBox有X数量（从9到90）的项目。我试图用列表框中选择的项目来填充（在按钮上单击）一个字符串数组。以下是我迄今为止

private void generateTam_Click(object sender, EventArgs e) 
    { 
     String sCombinedTam = ""; 
     String sTamResponseStart = "Dear $contacts.name.first,@\[email protected]\nYour request has been received and [email protected]\nThe following actions were taken:@\n"; 
     String sTamResponseEnd = "Thank you for choosing %company%, and have a great [email protected]\[email protected]\[email protected]\n%company%"; 

     sTamResponseStart = sTamResponseStart.Replace("@\n", System.Environment.NewLine); //Replaces token @\n with NewLine 
     //Gets Actions Selected, Sends to Array 
     String[] sActionItemsSelected = new String[actionsListBox.Items.Count]; 
     for (int x = 0; x < actionsListBox.Items.Count; ++x) 
     { 
      if (actionsListBox.GetSelected(x) == true) 
      { 
       actionsListBox.Items.CopyTo(sActionItemsSelected, 0); 

      } 
     } 
     //Gets Profiles Selected, Sends to Array 
     String[] sProfileItemsSelected = new String[profilesListBox.Items.Count]; 
     for (int x = 0; x < profilesListBox.Items.Count; ++x) 
     { 
      if (profilesListBox.GetSelected(x) == true) 
      { 
       profilesListBox.Items.CopyTo(sProfileItemsSelected, x); 
      } 
      else if (profilesListBox.GetSelected(x) == false) 
      { 
       sProfileItemsSelected[x] = ""; 
      } 
     } 
     //Combines strings for end response 
     for (int i = 0; i < sActionItemsSelected.Length; ++i) 
     { 
      sCombinedTam = sCombinedTam + sActionItemsSelected[i] + "@\n"; 
     } 
     sCombinedTam = sCombinedTam.Replace("@\n", System.Environment.NewLine); 
     sTamResponseEnd = sTamResponseEnd.Replace("@\n", System.Environment.NewLine); 
     sCombinedTam = sTamResponseStart + sCombinedTam + sTamResponseEnd; 
     notesTextBox.Text = sCombinedTam; 

     //Outputs ENTIRE index ListBoxes not just selected items. 

    } 

这个问题是到了最后，而不是设置notesTextBox.Text的组合字符串只ListBox中选定的项目将其设置为组合字符串列表框EVERY选项。

任何帮助将不胜感激。

Answer 1

使用ListBox.SelectedItems属性来获得一个字符串，由换行符字符串分离所有选定的项目（你可以删除最后一个for循环，以及你的一些其他代码）。

您可以将所选项目的集合转换回任何类型;在你的情况下，一个字符串。

var selectedItems = 
    String.Join(Environment.NewLine, listBox1.SelectedItems.Cast<string>());