listbox

I'm subclassing the standard ListBox control. I get notified of changes to any of the elements added to the list. The task is to update the text shown by the ListBox for the changing element. I'm aware that i could just remove the changed element and add it again, but this seems not preferable for obvious reasons. Unfortunately, the data-binding in ListView doesn't support regular (item) change notification events ( FooChanged / INotifyPropertyChanged ). However, if you know about the change, you can get the list to re-bind itself. Since you are subclassing, you can call: this.RefreshItems();

I'm writing an C# App (WinForm) with a ListBox having content added by the user. Now, I could have a ordinary button under the ListBox to remove items, but I would like to have the button right next to the content, thus being inside of the ListBox. Like this: Content 1 | X Content 2 | X ... Content 5 | X The problem is that I lack experience in .NET so I have no clue on how this would be possible with all the automated controls going on. I've googled it, but came up with no meaningful results. Any hints, clues or snippets for achieving this are welcome! :) Instead of ListBox you can use

I have a style defined for my ListBoxItems with a trigger to set a background color when IsSelected is True: <Style x:Key="StepItemStyle" TargetType="{x:Type ListBoxItem}"> <Setter Property="SnapsToDevicePixels" Value="true"/> <Setter Property="OverridesDefaultStyle" Value="true"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="ListBoxItem"> <Border Name="Border" Padding="0" SnapsToDevicePixels="true"> <ContentPresenter /> </Border> <ControlTemplate.Triggers> <Trigger Property="IsSelected" Value="True"> <Setter TargetName="Border" Property="Background" Value="

my MessageBox.Show(listbox.Items[0].ToString()); is "abber" how can I find listbox item index 0 with "abber"? With listbox.Items.IndexOf("abber") That is: int curIndex = listbox.Items.IndexOf("abber"); if(curIndex >= 0) { MessageBox.Show(listbox.Items[curIndex].ToString()); } int index = listBox1.Items.IndexOf("Specify string here"); 来源： https://stackoverflow.com/questions/17611537/how-can-i-find-listbox-item-index-with-item-value

My windows form contains two listboxes. Listbox1 contains some items in it and listbox2 is empty. When I press a button on the form, then multiple selected items from listbox1 should be removed from Listbox1 and copied to Listbox2. I tried with foreach loop on listbox1.SelectedItems but it removes only 1 item from list. Anyone has solution or code for this? You could do all in a single loop. You should use a simple for and loop backwards on SelectedIndices: private void button1_Click(object sender, EventArgs e) { for(int x = listBox1.SelectedIndices.Count - 1; x>= 0; x--) { int idx = listBox1

I have a ListBox in my WinForms application and I want to disable some items on that list, for example if I right click on an item , it gets disabled and if I left click on a disabled item it should be enabled. How can I do this? Thanks very much ali.alikhani I found a way. We must create a custom ListBox Control to do this. :) With it, you can enable or disable items with item index. using System; using System.Collections.Generic; using System.Text; using System.Windows.Forms; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Globalization; using System

I have a Listbox full of items, and I need to change an item's text. Using item configure I can only find out how to change colors. How can I change the item text on a Tkinter Listbox ? To change the text you will have to delete and re-add an item at the proper index. Here is a contrived example that continuously updates the second item in the listbox: import Tkinter as tk import time class Example(tk.Frame): def __init__(self, parent): tk.Frame.__init__(self, parent) self.lb = tk.Listbox(self) self.lb.pack(fill="both", expand=True) self.lb.insert("end", "item 1","the current time", "item 3")