how to get value from a combobox by passing its index value

Question

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hi friends,
I want to get value from combobox when I pass its index value. for ex:
suppose the following are the value in combobox

Jan
Feb
mar
apr
may

I want if I pass "2" as index value and want "mar" as result how can i do it please help me soon

Posted 30-Mar-12 0:08am

ShivKrSingh

Updated 31-Oct-18 0:17am

Add a Solution

5 solutions

Solution 4

Hi all,

Its very simple u can get the text of combobox for specific index in one line

myCombobox.GetItemText(myCombobox.Items[index]);

thanks
:)

Posted 9-Oct-12 19:53pm

Tajuddin_HYD

Comments

Member 10832926 26-Jun-15 2:14am

Thank you :)

Libino Giffrin 17-Jul-15 12:35pm

Help : I'm beginner in c#.
I've ComboBox.DisplayMember="Mar"; and ComboBox.ValueMember="50"; Bt the index value is same as "2";
Now my question is ' I want to get the value "50"? How to get? Plz help...

moutal 28-Sep-16 5:47am

hello there ,
did u solve this issue ??
i have the same problem and i'm stuck on it .. i cant find any solution for it !

Libino Giffrin 5-Apr-17 7:00am

S, I got answer

Member 13559666 14-Feb-18 5:03am

Thank You Bro

shady mohamed 5-Apr-21 11:07am

AWESOME CODE >> Nice

Solution 1

You can simply select it using SelectedIndex. Check out the link for more info: http://msdn.microsoft.com/en-us/library/system.windows.forms.combobox.selectedindex.aspx[^]

Good luck!

Posted 30-Mar-12 0:14am

E.F. Nijboer

Solution 3

Dim index As Integer

1. CmbName.Items(Index).ToString().Trim()

2. index = CmbName.FindString("MonthName")
CmbName.SelectedIndex = index
CmbName.SelectedItem.ToString()
CmbName.SelectedText(Index).ToString().Trim()
CmbName.SelectedValue.ToString()

Posted 30-Mar-12 0:29am

Manoj Kumar Choubey

Comments

Shahin Khorshidnia 30-Mar-12 7:59am

1. It doesn't work. It's actually 100% opposite of what OP wants! OP wants to pass an index and get a month name. Your solution 1.trims values, 2.passes the month name and gets the index!

=====
2. CmbName(?!) What kind of notation? PascalCasing (No!), camelCasing (No!), Hungarian (No!).

Manoj Kumar Choubey 30-Mar-12 8:05am

Have you check cmbName.Items(Index).Tostring()

Manoj Kumar Choubey 30-Mar-12 8:06am

and Please suggest me what are you using naming convention .... ?

Shahin Khorshidnia 30-Mar-12 8:18am

Hello Manoj
Sorry about it. But:
CmbName (If I suppose it's cmbName) is in Hungarian and it's not standard in .Net. It's a back to VB6.
We can use camelCasing (For fields and variables) and PascalCasing (For properties and name of contols)
for example:

Dim indexOfItems As Integer 'Its camelCasing
===

'PascalCasing for this Public Property
Private _personID As Integer

Public Property PersonID() As Integer
Get
Return _personID
End Get
Set
_personID = value
End Set
End Property
.....
You can find standard notation in MSDN

ProEnggSoft 30-Mar-12 10:59am

You are correct. Please see my comment below, where I have mentioned other possible cases.

Shahin Khorshidnia 30-Mar-12 12:36pm

I saw. It's Perfect.
Thanks

ProEnggSoft 30-Mar-12 13:21pm

Thank you.

Manoj Kumar Choubey 30-Mar-12 8:07am

and Also describe what is wrong with above answer and what is the correct answer ..... ?

Shahin Khorshidnia 30-Mar-12 8:20am

And What's wrong about the answer:
As I said:
It's actually 100% opposite of what OP wants! OP wants to pass an index and get a month name. Your solution 1.trims values, 2.passes the month name and gets the index!
Check my solution, It returns the value of ComboBox by passing the Index

Manoj Kumar Choubey 30-Mar-12 8:37am

Shahin Thanks for improving my skill , Actually I started programing with vb 6 and now i am doing programing with .net , and this is my habit, naming same type , I will keep it in mind, and also want to say I have viewed your articles this is pretty good , put more articles to share your knowledge, don't mind but I want to ask a question ?

ProEnggSoft 30-Mar-12 10:54am

What Shahin said is correct.
I want to add the following to make it more clear.

As per Framework Design Guidelines

PascalCasing is used for static public and protected fields.
Internal and private fields are not covered by those guide lines. But if used camelCasing can be used.
Public and protected instance fields are not allowed by the member design guidelines.
i.e. We cannot generilize camelCasing for all fields.

Fields are also variables. So to be specific
camelCasing is used for parameters and local variables.

Regarding control, it depends on the access (visibility) level of the control.
In Visual Studio, in form designer (C#), when a control is dropped on a form, the control is given private access and the naming is camelCasing.
When the control is given public or protected access, then PascalCasing can be used.

Shahin Khorshidnia 30-Mar-12 12:36pm

Thanks Manjo
Not at all. Please ask ;)

Manoj Kumar Choubey 30-Mar-12 12:36pm

Thanks ProEnggSoft .....

Solution 5

If you want to get item text from a combobox by index number in vb.net
you should do
(correct ways) :> MyCombo.GetItemText(MyCombo.Items.Item(0))

you shouldn't
(X Incorrect way) :> MyCombo.Items(0).ToString

because if combobox filled from .DataSource then it won't work, it gives object string referring that item which is not wanted

Posted 31-Oct-18 0:18am

Nilesh Toonwal

Comments

Richard Deeming 2-Nov-18 12:31pm

As already mentioned in solution #4, back in 2012.

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This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Shahin Khorshidnia · Accepted Answer · 2012-03-30T00:24:00

Solution 2

ComboBox has has a property named Items that is a collection and you can access to each item with using Index.

For example:

C#

MessageBox.Show(MyCombo.Items[2].ToString());

You can use this method too:

C#

public object GetComboBoxItem(int index)
{
    if (index >= MyCombo.Items.Count)
        return null;

    return MyCombo.Items[index];
}

Posted 30-Mar-12 0:24am

Shahin Khorshidnia

Updated 30-Mar-12 0:28am

v3

Comments

ProEnggSoft 30-Mar-12 7:08am

+5

Shahin Khorshidnia 30-Mar-12 7:46am

Thank you very much ProEnggSoft

ShivKrSingh 12-Apr-12 9:03am

thanks

Shahin Khorshidnia 12-Apr-12 10:13am

You're welcome

shady mohamed 5-Apr-21 11:06am

Perfect Code

Shahin Khorshidnia 6-Apr-21 5:08am

Thanks.

how to get value from a combobox by passing its index value

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