I have list of data need display on the custom pane.
I'm using ListView.
How could I change each individual ListViewItem width?
I cannot find the ListViewItem style in the ListView.
Any recommend?
Find out myself.
// check full details of the item in the list and set the row can be selected
caseList.View = View.Details;
caseList.FullRowSelect = true;
Related
I have a xamarin forms application search screen that allows a user to select an item from a list. Currently I am using a picklist and the user has to scroll and select and click done. This is using the native controls. Howerver I have noticed in iOS in settings menu etc where the have designed it so that when a user want to select from a list a arrow is shown on the right hand side which takes them to another page to select an item (s) from a list. To me this seems like a better UX. Here is an ex:
My question is there something built into this withing xamarin forms? I guess I could create a listview and then on click pass to another page. Any examples are appreciated.
There is no built-in for that, but it's not too hard to achieve this.
To set the disclosure indicator (the arrow), implement a custom renderer derived from ImageCellRenderer and override GetCell
public override UITableViewCell GetCell(Cell item, UITableViewCell reusableCell, UITableView tv)
{
var viewCell = base.GetCell(item, reusableCell, tv);
viewCell.Accessory = UITableViewCellAccessory.DisclosureIndicator;
return viewCell;
}
When the user taps that cell you should navigate modally to the view showing the list of languages.
Adding that Cancel-Button is not really hard either, but needs another step. You'll need to wrap the new language selection page in a NavigationPage and push that NavigationPage modally. Furthermore you'll have to add a toolbar item to the wrapped page (see here).
Within the page there is a SearchBar view and a ListView below it. To add the checkmarks, you'll have to implement a custom cell with a custom renderer (derived from ImageCellRenderer like the one shown above), setting the UITableViewCell.Accessory to Checkmark if the custom cell is selected
if(item is SelectableCell selectableCell)
{
var selected = selectableCell.IsSelected;
viewCell.Accessory = selected ? UITableViewCellAccessory.Checkmark : UITableViewCellAccessory.Checkmark;
}
Please note: Selectable cell is no Xamarin.Forms stock cell, but one that you have to implement by yourself, including the bindable property IsSelected.
This should be basically the steps you need to achieve what you want. I've assumed basic Xamarin.Forms knowledge that is needed to fill the gaps.
I am using latest xamarin build 4.5 and trying to apply picker control with following facilities..
Binding option- I could not see ItemsSource property in latest xamarin release. I have used following code to bind picker control in c#
_pcPicker = this.FindByName("pcPicker");
foreach (var item in ParentCategory)
{
_pcPicker.Items.Add(item.Name);
}
I need to bind category id also along with category name...please guide me how to bind and get id of selected category.
I could not follow this link for bindable picker - https://blog.xamarin.com/new-bindable-picker-control-for-xamarin-forms/ ... example given is not complete.
I need add to additional link (Add New category..) at the end of the picker list just as shown in below image.
Please guide me how to customize picker control to achieve these two requirement-
Thanks,
#Paul
This nuget package is great and will allow you to achieve what you want.
https://github.com/rotorgames/Rg.Plugins.Popup
It allows you to create a pop up of any type of page. So for your picker, you could create a view that has a StackPanel, that has a ListView (so you can bind your ItemSource) and then 2 buttons New Category, Edit Category.
I'm displaying a GroupedList view, and have both enabled the group header and jumplist. I've tried to hide the Group header, but so far with no luck. This property I want to hide is GroupDisplayBinding. If I don't set it, a default of ToString for my Item is displayed. I just want it gone, as a regular list only with the jump option enabled.
A little update: I searched some samples and what I want is a TableView with and indexed list as displayed here: https://developer.xamarin.com/guides/ios/user_interface/tables/part_2_-_populating_a_table_with_data/#Adding_an_Index
Best regards
Xamarin.Forms listview allows you to specify your own layout for the listview group via GroupHeaderTemplate property. You can use this layout to keep the header content empty.
Have a look at Customizing Listview Grouping
If you want to define the group header layout in code you will have to create a new subclass of ViewCell and build the layout. See an example at Enhancing Xamarin.Forms ListView with Grouping Headers
I have added a list of items in my blckberry screen using custom list field class. i am able to display list of items on my bb screen, but how to set the default selection as first item in the list?
Check setSelectedIndex(int index) in API Documentation.
Example:
ListField list = new ListField();
// do other task, add on screen
list .setSelectedIndex(3);
I am developing a wp7 application using longlist selector. My requirement is to change font of only some items on the screen. For this i need to get the text box control for the item.
The textbox is a part of item template of the long list selector.
The items to be modified change with the scroll.
I tried using the Link event. here i can find the contentpresenter for the item being added. But how can i get the textbox from the content presenter.
Any one can help with this? pls.
Instead of searching for the TextBlock that gets generated - provide your own in the ItemTemplate/DataTemplate and set its font through binding to an item in the ItemsSource. You can use a converter to determine the font or provide the font directly in each item of the bound collection.