How to fetch only integer values from combobox items

Question

0.00/5 (No votes)

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comboBox1.Items.Add(" 1 second");
comboBox1.Items.Add("2 second");
added to combobox .
1)if i select 1 second from combobox .1 should be displayed in textbox provided how can i do this .

2) Another based on textbox text such as 1 how can i fetch combox items
and display the selected item

Posted 22-Feb-11 20:18pm

yeshgowda

Updated 23-Feb-11 4:24am

v3

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6 solutions

Solution 6

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
textbox1.text=comboBox1.Text.Split(' ')[0];
}

Posted 22-Feb-11 21:45pm

samrat.sarkar2008

Updated 22-Feb-11 21:46pm

v3

Comments

yeshgowda 23-Feb-11 6:33am

ThanQ this code will work fine with minimum number of lines.

Solution 1

You may try this

string s = (string)comboBox1.SelectedItem;
s = s.Substring(0, s.IndexOf(" "));
int i =Convert.ToInt32(s);
textBox1.Text = i.ToString()

Posted 22-Feb-11 20:29pm

manjulac

Updated 22-Feb-11 22:09pm

v2

Solution 5

The process of adding dataitems itself is wrong.
While inserting, do this:

C#

comboBox1.Items.Insert(0,new ListItem("1 Second","1");
comboBox1.Items.Insert(1,new ListItem("2 Second","2");

This way you can easily fetch corresponding values for selected items:

C#

textBox1.Text= comboBox1.SelectedItem.Value;

Hope this helps.
(I haven't checked the code on code editor, so may contain syntactical errors, otherwise logic will always be the same)
Anurag :rose:

Posted 22-Feb-11 20:42pm

@nuraGGupta@

Updated 26-Feb-11 4:40am

v6

Comments

Sergey Alexandrovich Kryukov 25-Feb-11 19:25pm

This improvement is absolutely pointless! If you need semantic object it list view (and usually you do), it can be any type with overridden ToString. (Did you know that?) In this case, non-string item makes sense and very beneficial. ListItem type adds not value.
--SA

@nuraGGupta@ 26-Feb-11 10:42am

Although, I didn't used any help from net for providing this answer, but check this link http://community.devexpress.com/forums/p/74796/255802.aspx.

Also, you may get many similar examples regarding this. Next time please think twice before providing comments or negative votes. You may be very sure about what you know, but never be sure about what you don't know.

Sergey Alexandrovich Kryukov 26-Feb-11 13:45pm

I agree I should be very careful. Your new reference is also not correct argument; the code you reference is valid, so what? I already explained what do to. Sorry.
--SA

Solution 4

Assuming it's '1 second', '2 second'....
Get the selected value and then split it using space, use the first value of split.

Posted 22-Feb-11 20:33pm

Sandeep Mewara

Comments

Sergey Alexandrovich Kryukov 25-Feb-11 19:21pm

This is essentially the same as the Answer by JF2015, so I voted the same way (see my comment).
I disagree with the vote of "3" though.
--SA

koool.kabeer 26-Feb-11 11:39am

i didnt expect that sol from sandeep, its System.Text.RegularExpression.Regex and its method "Replace"

Sandeep Mewara 26-Feb-11 11:41am

Appologies sir!

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-02-22T20:29:00

Solution 2

One of many options: find Regex match of "[0-9]+"; read the help on System.Text.RegularExpressions.Regex for instructions.

—SA

Posted 22-Feb-11 20:29pm

Sergey Alexandrovich Kryukov

Comments

Espen Harlinn 25-Feb-11 6:54am

Nice and simple - my 5

Sergey Alexandrovich Kryukov 25-Feb-11 19:26pm

Thank you.
--SA

**JF2015** · Accepted Answer · 2011-02-22T20:30:00

Solution 3

C#

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
  string[] splitted = comboBox1.Text.Split(' ');
  if (splitted.Length > 1)
    textBox1.Text = splitted[0];
}

Posted 22-Feb-11 20:30pm

JF2015

Comments

Espen Harlinn 25-Feb-11 6:57am

Did not deserve a downvote - my 5, even if I like SAKryukovs regex based solution somewhat better :)

Sergey Alexandrovich Kryukov 25-Feb-11 19:19pm

I agree. A little problem is not the algorithm itself: this method assumes a more about the string than it is minimally needed, therefore, I think my vote of 4 is just right.
--SA