listbox

问题 I display the contents of a table in the database using a ListBox. Each listbox item is populated with the Text property set to a friendly name, and the Value property set to the unique ID column. The database structure might look similar to the following: CREATE TABLE GENERIC { FRIENDLY_NAME TEXT, ID INT } I tried for almost an hour to convert the items of the listbox to an int[] using LINQ and ultimately failed. It is also important to distinguish between the selected and not selected items

问题 I am developing a software in winforms, I am stuck in a step where I have List<KeyValuePair<string, string>>. and some sample data: List <KeyValuePair<"S", "1200">> List <KeyValuePair<"S", "1300">> List <KeyValuePair<"L", "1400">> I want to diplay the value of the key pair inside a ListBox, where based in the key of the pair the Item on the ListBox has a diffrent colour, for example if the Key is S, then the Item should be red and if the Key is L the Item should be blue. Hope you could help

问题 Within a Groupbox I have a Listbox, ListboxItems are defined in the XAML as well. The Listbox is defined: <ListBox Name="lvAvoidCountry" Margin="5,5,5,5" Background="Transparent" ScrollViewer.VerticalScrollBarVisibility="Visible" ScrollViewer.HorizontalScrollBarVisibility="Disabled" > Items are defined like this: <ListViewItem > <CheckBox Name="chkAlbanien" Tag="55"> <StackPanel Orientation="Horizontal"> <Image Source="images/flag_albania.png" Height="30"></Image> <TextBlock Text="Albanien"

问题 I have a listbox that should display data that contains 2 fields: time and a message. Instead of displaying 1 line of text, I want each item to be displayed as 2 lines - 1st line is the time and the 2nd line is the message, where each line has a different style. How can I do this? I can bind the object array to the listbox, but how do I style it? Thanks for your answers. 回答1: I'll just formally post an answer earlier left in a comment. You'll need to use the DrawMode property, there's a good

问题 I'm trying to create an ItemTemplate for a ListBox programmatically but it doesn't work. I know in XAML I can have something like: <ListBox x:Name="listbox" BorderThickness="0" Margin="6" Height="400"> <ListBox.ItemTemplate> <DataTemplate> <TextBlock Margin="0" Background="Red" Foreground="White" FontSize="18" Text="{Binding}" /> </DataTemplate> </ListBox.ItemTemplate> </ListBox> But when I'm trying to have the above result programmatically I face a problem which is binding the TextBox

问题 I have a listbox in windows phone 8, For that i want to change the datatemplate for the Selected Item. I have done this is WPF like : <Window.Resources> <DataTemplate x:Key="ItemTemplate"> <TextBlock Text="{Binding}" Foreground="Red" /> </DataTemplate> <DataTemplate x:Key="SelectedTemplate"> <TextBlock Text="{Binding}" Foreground="Green" /> </DataTemplate> <Style TargetType="{x:Type ListBoxItem}" x:Key="ContainerStyle"> <Setter Property="ContentTemplate" Value="{StaticResource ItemTemplate}"

问题 So i have a listbox that i have there for a list of proxies. I have 4 buttons pertaining to it. they are find, load, save and check I have the first 3 finished and working but i haven't found anything useful pertaining to checking the proxies, the only one that i found took like 6 seconds per proxy so it took a lot of time for a decent sized list. So how could i make it that on the press of that button, it checks all of the proxies in the listbox and it deletes the slow ones and the ones that

问题 I have two text boxes to enter the Name and the Marks of students. I don't know how to create the array for it in Visual Basic The array must be multidimensional and also needs to have an index that increments every time a new mark and name is entered. Once the array is completed I need the results to show in a list box. Thank you EDIT!!! This is the code i now have but i still have few errors Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles

问题 My code is working and the drag and drop but what i want to add is to Drag and Drop items from ListBox1 to ListBox2 with their images. Also when i want to rearrange the items in ListBox2 it duplicates without deleting the previous one. Or if it's possible I would love to know how to move items from ListBox1 to ListBox2 with just a double Click no need to the drag and drop. I am using the 10.2 version Here is my code and i would appreciate if anyone can help me : type TListBoxItem = class(FMX

问题 I'm struggling to make a basic C# app that gets a number of items from an XML file, shows the "title" node in a listbox, and, when a title is selected, displays the other nodes of the item in a textbox. The textbox is meant to allow the user to edit the XML content and save the changes. My problem is quite basic I think: The listbox works fine, but the textbox isn't updated when a new title is selected in the listbox. I guess it shouldn't be too complicated, but to me it is - I'm really stuck