listbox

问题 How would I say, detect specific text in a listbox and replace it with specific text. Eg: private void timer1_Tick(object sender, EventArgs e) { if(listBox1.Text.Contains("Hi")) { // replace with Hello } } 回答1: In WinForms , you could do it like this: if(listBox1.Items.Cast<string>().Contains("Hi")){ //check if the Items has "Hi" string, case each item to string int a = listBox1.Items.IndexOf("Hi"); //get the index of "Hi" listBox1.Items.RemoveAt(a); //remove the element listBox1.Items.Insert

问题 Im trying to sort a listbox full of numbers numerically. Why doesnt this work? { ArrayList Sorting = new ArrayList(); Sorting.Add (lbNumbers.Text); int[] items = new int[Sorting.Count]; Sorting.CopyTo(items); Array.Sort(items); lbNumbers.Items.Add(items); } 回答1: ArrayList Sorting = new ArrayList(); foreach (var o in listBox1.Items) { Sorting.Add(o); } Sorting.Sort(); listBox1.Items.Clear(); foreach (var o in Sorting) { listBox1.Items.Add(o); } ADDED: For sort in descending order, 1.Create a

问题 I'm trying to create window that contain richedit control and listbox control, the problem is that the second control which I create, doesn't show up. I mean: case WM_CREATE: // In main window procedure { /* Center the main window */ This->CenterWindow(hwnd); /* Initialize the clients list */ This->InitListClients(hwnd); /* Initialize the server log */ This->InitEditLog(hwnd); return 0; } If InitListClients function will be first, only the listbox will show up, if InitEditLog will be first,

问题 I've been searching on the internet trying to find what the meaning of listcount -1 is, but i can't seem to find the exact answer. why is there -1 beside the listcount? or .list(.listcount -1,1) what is that mean? edit example of the listcount .additem a.value .list(.listcount -1, 1) = ws.cells(A,B).value this adds the value of ws.cells(A,B) to the listbox1 but i don't understand why/how? or i found a code on the internet http://www.ozgrid.com/VBA/multi-select-listbox.htm i understand that

问题 I have a listbox where I want to display a list of names and highscores from a character class. I use ListBox.Items.Add to add the following string for each character: public String stringHighscore() { return name + "\t\t\t" + score.ToString(); } The problem is that when the name exceeds a certain length, the score gets pushed to the right. The listbox looks like this (sorry, my rep doesn't allow me to post images yet): (Link to the listbox image on tinypic) I have thought this may be due to

问题 Say I have a view model defined this way public class DataVM { public int number { get; set; } public string name { get; set; } } Then somewhere in my code I want to do this to populate DataListbox : List<DataVM> data = new List<DataVM>(); for (int i = 0; i < data.Count; i++) { if (DataListbox.Items.Contains(data[i])) { //do nothing } else { DataListbox.Add(data[i]); } } However, this line if (DataListbox.Items.Contains(data[i])) always evaluate to false even when that item is already in

问题 how to change listbox to set background color of alternate row diff... e.g. Listbox having 6 rows 1st,3rd,5th row having "blue" background and 2nd, 4th, 6th row having "white" background. 回答1: Here is one way to do it: http://forums.silverlight.net/forums/t/14345.aspx 来源： https://stackoverflow.com/questions/3183459/silverlight-listbox-design-change-backgroundcolor-of-alternate-row

问题 I would like to filter a Listbox created from a list of values stored in a worksheet depending on text written in a textbox contained in the same userform. My Listbox has 4 or 5 columns (depending on OptionField selection) and I would like to search all the columns for the text written. Example: I write "aaa" in TextField and the Listbox should return a list based on all the lines whose column 1 or 2 or 3 or 4 or 5 contain "aaa". Below my code to refresh the list on OptionField selection

问题 I have a session object that contains a DataTable from my previous page, and i would like to bind this DataTable to a ListBox. I'v done this: protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { if (Session["bestStocks"] !=null) { DataTable dt = new DataTable(); dt = (DataTable)Session["bestStocks"]; DataView dv = new DataView(dt); BestStockslb.DataSource = dt; BestStockslb.DataBind(); } } } I get this result: Any suggestion? thanks, liron 回答1: It seems you have forgot

问题 i have a scrollviewer with a listbox inside: i need to disable the vertical scroll by touch, how can i? In other words, the user can't scroll with the touch (i have put buttons, but this is another story). <ScrollViewer HorizontalScrollBarVisibility="Disabled" VerticalScrollBarVisibility="Disabled" x:Name="imagesScrollview" Width="480" Height="595" Margin="0,112,0,63"> <ScrollViewer.RenderTransform> <CompositeTransform/> </ScrollViewer.RenderTransform> <ListBox Name="listavideo" Height="595"