我有两个
UITableView
在同一个UIViewController
中。
tblView1 和 tblView2。
两个 TableView 都动态地引入数据。 现在我的问题是:我想在 tblView1 的 SelectedRow 的基础上加载 tblView2 中的数据。
例如,当我从 tblView1 中选择一个公司名称时,tblView2 需要填充该公司制造的汽车。
我有第一个表 (tblView1) 的 rowIndex,但我无法从 tblView1 的 RowSelected 方法绑定我的 tblView2。 我需要帮助绑定我的 tblView2。 我该怎么做?
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Xml.Serialization;
using CoreGraphics;
using Foundation;
using UIKit;
namespace Tables
{
public partial class ViewController : UIViewController
{
protected ViewController(IntPtr handle) : base(handle)
{
// Note: this .ctor should not contain any initialization logic.
}
public ViewController()
{
//tblView2.Source = new CompanyModelsSource();
// Note: this .ctor should not contain any initialization logic.
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
if (tblView1 != null)
{
tblView1.Source = new CarModelsSource();
}
// Perform any additional setup after loading the view, typically from a nib.
}
public override void DidReceiveMemoryWarning()
{
base.DidReceiveMemoryWarning();
// Release any cached data, images, etc that aren't in use.
}
}
class CompanyModelsSource : UITableViewSource
{
private List<Companies> _Companies;
NSString _cellID = new NSString("TableCell");
public CompanyModelsSource()
{
_Companies = CompanyTableSource.AllCompany();
}
public override nint RowsInSection(UITableView tableview, nint section)
{
// tell the TableView how many rows to create
return _Companies.Count;
}
public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
//I can't access my tblView2 in this method. So where i can bind my other UITableView?
UILabel lblTotalFacilities = new UILabel();
lblTotalFacilities.Layer.BackgroundColor = UIColor.Blue.CGColor;
lblTotalFacilities.Frame = new CGRect(305, 200, 1024, 400);
ViewController vc = new ViewController();
vc.View.AddSubview(lblTotalFacilities);
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
Company currentCompany = _Companies[indexPath.Row];
var cell = tableView.DequeueReusableCell(_cellID) as CompanyTableCell;
if (cell == null) { cell = new CompanyTableCell(_cellID); }
cell.UpdateCellControlsWithAuditData(currentCompany.Name);
return cell;
}
}
public class CompanyTableSource
{
public CompanyTableSource()
{
}
public static List<Companies> AllCompany()
{
CompanyCollection CC = null;
string path1 = path + "Companies.xml";
XmlSerializer serializer = new XmlSerializer(typeof(CompanyCollection));
StreamReader reader = new StreamReader(path1);
CC = (CompanyCollection)serializer.Deserialize(reader);
reader.Close();
List<Companies> comp = CC.CompanyCollection.Cast<Companies>().ToList();
return comp;
}
}
public class CompanyTableCell : UITableViewCell
{
UILabel nameLabel;
public CompanyTableCell(NSString cellId) : base(UITableViewCellStyle.Default, cellId)
{
SelectionStyle = UITableViewCellSelectionStyle.Gray;
ContentView.BackgroundColor = UIColor.FromRGB(54, 194, 36);
var newFont = UIFont.SystemFontOfSize(12);
nameLabel = new UILabel();
nameLabel.Font = newFont;
ContentView.AddSubviews(new UIView[] { nameLabel });
}
public void UpdateCellControlsWithAuditData(string Name)
{
nameLabel.Text = Name;
}
public override void LayoutSubviews()
{
base.LayoutSubviews();
nameLabel.Frame = new CGRect(10, 0, 350, 33);
}
}
}
希望这有帮助。为了简单起见,在一个文件中创建了所有内容。
public partial class ViewController : UIViewController
{
public ViewController() : base("ViewController", null)
{
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Perform any additional setup after loading the view, typically from a nib.
var companySource = new CompanyTableSource();
tblView1.Source = companySource;
companySource.ItemSelected += OnCompanyItemSelected;
}
// This will handle the ItemSelected event
// Here you will retrieve the data for the second UITableView
void OnCompanyItemSelected(object sender, Company e)
{
// you can do it this way
tblView2.Source = new CarTableSource(e.Id);
List<Car> cars = GetCarsByCompanyId(e.Id);
// or this way
tblView2.Source = new CarTableSource(cars);
}
List<Car> GetCarsByCompanyId(int id)
{
// Your logic to get the data goes here
throw new NotImplementedException();
}
}
public class CompanyTableSource : UITableViewSource
{
// You can use the whole object or just an integer (companyId)
public event EventHandler<Company> ItemSelected;
public IList<Company> Items { get; private set; } = new List<Company>();
public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
var item = Items[indexPath.Row];
ItemSelected?.Invoke(this, item);
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
// Do your implementation
throw new NotImplementedException();
}
public override nint RowsInSection(UITableView tableview, nint section)
{
return Items.Count;
}
}
public class CarTableSource : UITableViewSource
{
public IList<Car> Items { get; private set; } = new List<Car>();
public CarTableSource(int companyId)
{
// Get your data based on the companyId
}
// Or pass in the data already retrieved (I prefer this method)
public CarTableSource(IList<Car> cars)
{
Items = cars;
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
// Do your implementation
throw new NotImplementedException();
}
public override nint RowsInSection(UITableView tableview, nint section)
{
return Items.Count;
}
}