| id | title | brief | sdk | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
414980AA-64C0-3D0D-7306-71595C749B50 |
Populate a Table |
This recipe shows you how to populate a UITableView with rows of data. |
|
A table in iOS requires both a UITableView to present the data and a
UITableViewSource to supply to the data.
To create and populate a table:
- First create a
UITableViewinstance and add it to a view (see the HomeScreen.csViewDidLoadmethod in the sample):
table = new UITableView(View.Bounds);
Add (table);
- Create a subclass of
UITableViewSourcethat accepts an array of strings. Override theRowsInSectionandGetCellmethods as shown (in the TableSource.cs sample file):
public class TableSource : UITableViewSource {
protected string[] tableItems;
protected string cellIdentifier = "TableCell";
public TableSource (string[] items)
{
tableItems = items;
}
public override int RowsInSection (UITableView tableview, int section)
{
return tableItems.Length;
}
public override UITableViewCell GetCell (UITableView tableView, NSIndexPath indexPath)
{
// request a recycled cell to save memory
UITableViewCell cell = tableView.DequeueReusableCell (cellIdentifier);
// if there are no cells to reuse, create a new one
if (cell == null)
cell = new UITableViewCell (UITableViewCellStyle.Default, cellIdentifier);
cell.TextLabel.Text = tableItems[indexPath.Row];
return cell;
}
}
- Create an array of strings:
string[] tableItems = new string[] {"Vegetables","Fruits","Flower Buds","Legumes","Bulbs","Tubers"};
- Instantiate the
UITableViewSourcewith the array, and set theSourceproperty on the table.
table.Source = new TableSource(tableItems);
- The table will be displayed.
The steps above only display a table, it does not accept user input. To show an alert when the user touches a row, refer to the recipe Handle a Row Click.