ListBox items as AutoCompleteCustomSource for a textbox

Question

I have populated some items into a listbox using the datasource property. Now I need to set the AutoCompleteCustomSource for a textBox from the items listed in the listbox. Precisely, the DataSource for the ListBox and the AutoCompleteCustomSource for the textBox are same. How can I set the AutoCompleteCustomSource without using the for-loops?
.Net 2.0 only. No support for LINQ

I have used DataTable and DataViews to set the dataSource. It works. — Krishna, Oct 03 '11 at 22:13

Mahmoud Gamal · Answer 1 · 2013-04-05T06:20:17.930

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The AutoCompleteStringCollection takes only string[], so it should be like this:

var cc = new AutoCompleteStringCollection();
cc.AddRange(listBox1.Items.Cast<string>().ToArray());

edited Apr 05 '13 at 06:20

answered Sep 27 '11 at 01:10

Mahmoud Gamal

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ooh, good catch i did it like that because i didn't want to use foreach or for loop. – Mahmoud Gamal Sep 27 '11 at 01:42

score 0 · Answer 2 · answered Sep 27 '11 at 01:00

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If your ListBox is a list of strings, you should be able to do this: (untested)

textBox.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
textBox.AutoCompleteSource = AutoCompleteSource.CustomSource;
textBox.AutoCompleteCustomSource.AddRange((List<String>)listBox.DataSource);

answered Sep 27 '11 at 01:00

Grant Winney

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this won't compile, the AutoCompleteStringCollection takes only string[] – Mahmoud Gamal Sep 27 '11 at 01:11

score 0 · Answer 3 · edited May 23 '17 at 12:06

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Here is a similar question and answer seems to be appropriate. autocomplete textbox on listbox

Another similar question C# AutoComplete

edited May 23 '17 at 12:06

Community

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answered Sep 27 '11 at 01:01

CharithJ

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ListBox items as AutoCompleteCustomSource for a textbox

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