问题
how can i display two columns in a list box?
回答1:
A list box wasn't designed to display multi-column data. Even the Windows Forms version doesn't directly support that kind of data display.
Your requirements aren't clear, but the simplest way to go would be to use a GridView control. It gives you a lot of functionality out of the box, and you can expand it to more columns very easily. If you need more control over the look or functionality, you can use a DataList instead.
To get the scrolling ability, you can either use a scrolling <div> or simply use the pagination mechanism of the GridView if that's appropriate.
回答2:
You could line it up as if the data was in 2 columns
new ListItem("blah1".PadRight(10, ' ') + "blah2");
as shown here: http://articles.dotheweb.net/post/Formatting-columns-in-a-ListBox-of-ComboBox.aspx
Also, you could roll your own with a DataList.
回答3:
If you want to use columns in a ListBox, you have to do it based on alignment.
For example:
String columns = "{0, -55}{1, -35}{2, -35}";
ListBox1.Items.Add(String.Format(columns, "Filename", "Selected DateModified", "Vault DateModified"));
ListBox1.Items.Add(String.Format(columns, fileName, datetime1, datetime2));
Output of my own implementation of this code below:
Keep in mind the font you use has to be a monospaced font, otherwise the alignment will mess up due to variable spacing between characters (and this exaggerates the longer the string is).
回答4:
Looks like you should write your own control, or you can use the listview control.
回答5:
use list view it is perfect alternative for multi column list box
回答6:
As Nick Craver has already commented, the ListView probably isn't the right control for multi-column information.
Instead of hacking your list to appear as if it has two columns, it might be a better idea to use a DataGridView. It'll be easier to setup, format, and your data will be held in a much more flexible way.
DataGridViews also support assigning Lists of objects as datasources, if that makes things easier.
回答7:
If I understood correctly, you want a data column to display horizontal. This can be acheived by using a DataList and have RepeatDirection set to "Hozizontal" with the specified repeat columns.
Eg :
<asp:DataList ID="DataList1" runat="server" RepeatDirection="Horizontal" RepeatColumns="5" CellSpacing="10" >
回答8:
Multiple items side by side are possible if you reference the toolkit and add the wrapPanelOrientation ;) it will list look like
1stItem 2ndItem
3rdItem 4thItem .. ect..
ListBox.ItemsPanel>
ItemsPanelTemplate>
toolkit:WrapPanelOrientation="Horizontal"FlowDirection="LeftToRight"ItemWidth="220"ItemHeight="60"/>
/ItemsPanelTemplate>
/ListBox.ItemsPanel>
/ListBox>
回答9:
See Multiple Column Drop-Down Box for ASP.NET
来源：https://stackoverflow.com/questions/2646446/multiple-columns-in-list-box-control