BetterExplorer.IconView.btnSet_Click C# (CSharp) Method

		private void btnSet_Click(object sender, EventArgs e) {
			var itemIndex = _ShellView.GetFirstSelectedItemIndex();
			this._ShellView.CurrentRefreshedItemIndex = itemIndex;
			if (this._IsLibrary) {
				//this._ShellView.IsLibraryInModify = true;
				var lib = _ShellView.GetFirstSelectedItem() != null ?
					BExplorer.Shell.ShellLibrary.Load(Path.GetFileNameWithoutExtension(_ShellView.GetFirstSelectedItem().ParsingName), false) :
					BExplorer.Shell.ShellLibrary.Load(Path.GetFileNameWithoutExtension(_ShellView.CurrentFolder.ParsingName), false);

				lib.IconResourceId = new BExplorer.Shell.Interop.IconReference(tbLibrary.Text, (int)lvIcons.SelectedItems[0].Tag);
				lib.Close();

				this._ShellView.Items[itemIndex].IsIconLoaded = false;
				this._ShellView.RefreshItem(this._ShellView.GetFirstSelectedItemIndex(), true);
			} else {
				this._ShellView.SetFolderIcon(this._ShellView.GetFirstSelectedItem().ParsingName, tbLibrary.Text, (int)lvIcons.SelectedItems[0].Tag);
			}

			this.Close();
		}