[英]C# .Net Save a ListView using Settings.settings
我正在尝试使用C#.Net保存和加载ListView列表的内容。 我希望通过创建变量System.Windows.Forms.ListView并随后填充它来保存它。
保存的代码段:
Properties.Settings.Default.followedUsersSettings = followerList;
Properties.Settings.Default.Save();
加载代码段:
if (Properties.Settings.Default.followedUsersSettings != null) {
followerList = Properties.Settings.Default.followedUsersSettings;
}
我似乎无法使用该代码来工作。 有没有更好的方法来尽可能简单地保存它? 该列表是单列,因此数组也应该起作用,但是我不确定推荐什么。
好的,我设法使其正常工作。
保存:
//Convert the listview to a normal list of strings
var followerList = new List<string>();
//add each listview item to a normal list
foreach (ListViewItem Item in followerListView.Items) {
followerList.Add(Item.Text.ToString());
}
//create string collection from list of strings
StringCollection collection = new StringCollection();
//set the collection setting (created in Settings.settings as a specialized collection)
Properties.Settings.Default.followedUsersSettingsCollection = collection;
//persist the settings
Properties.Settings.Default.Save();
对于加载:
//check for null (first run)
if (Properties.Settings.Default.followedUsersSettings != null) {
//create a new collection again
StringCollection collection = new StringCollection();
//set the collection from the settings variable
collection = Properties.Settings.Default.followedUsersSettingsCollection;
//convert the collection back to a list
List<string> followedList = collection.Cast<string>().ToList();
//populate the listview again from the new list
foreach (var item in followedList) {
followerListView.Items.Add(item);
}
}
希望对从Google搜索中找到此内容的人有意义。
if (Properties.Settings.Default.followedUsersSettingsListView == null)
{
// adding default items to settings
Properties.Settings.Default.followedUsersSettingsListView = new System.Collections.Specialized.StringCollection();
Properties.Settings.Default.followedUsersSettingsListView.AddRange(new string [] {"Item1", "Item2"});
Properties.Settings.Default.Save();
}
// load items from settings
followerList.Items.AddRange((from i in Properties.Settings.Default.followedUsersSettingsListView.Cast<string>()
select new ListViewItem(i)).ToArray());
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