how to update the secod combobox when selection of first combobox changes

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hi, i want to change the list if second combobox if the first combobox selection changes, i have two combobox first contains the names of mobile companies like htc samsung and nokia, and i want to change the list of second combobox when the first combobox selection changes
i have done this

  string[] st2 = new string[] { "Galaxy S", "Galaxy SII", "Galaxy SIII" };
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            comboBox2.Items.Clear();
            if (comboBox1.SelectedIndex == 1 )
            {
                comboBox2.Items = st2 // this is not happing here what can i do?
            }
        }

Posted 19-Dec-12 4:03am

shaikh-adil

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2 solutions

Solution 2

You need to add the strings into the Items collection: How to: Add and Remove Items from a Windows Forms ComboBox, ListBox, or CheckedListBox Control[^]

C#

string[] st2 = new string[] { "Galaxy S", "Galaxy SII", "Galaxy SIII" };

private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            comboBox2.Items.Clear();
            if (comboBox1.SelectedIndex == 1 )
            {
                foreach( string st in st2 )
                {
                    comboxBox2.Items.Add( st );
                }
            }
        }

Posted 19-Dec-12 4:21am

André Kraak

Comments

shaikh-adil 19-Dec-12 10:33am

thank you thank you sir,
if i want to bind the combobox with a database table and update the values according to that is that possible?
in one column i have the mobile company name and another table i have the model name if company name is selected the the model column will be shown in combobox 2?
is that possible sir?

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Krunal Rohit · Accepted Answer · 2012-12-19T04:17:00

Solution 1

C#

string[] samsung = new string[] { "Galaxy S", "Galaxy SII","Galaxy SIII" };
string[] apple = new string[] {"iPhone4", "iPhone4S"};
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
            comboBox2.Items.Clear();
            if ("Samsung" == comboBox1.SelectedItem.ToString())
            {
                comboBox2.Items.AddRange(samsung);
            }
            else if("Apple" == comboBox1.SelectedItem.ToString())
            {
                comboBox2.Items.AddRange(apple);
            }
        }

If its not working, let me know...

Posted 19-Dec-12 4:17am

Krunal Rohit

Updated 19-Dec-12 4:18am

v3

Comments

shaikh-adil 19-Dec-12 10:29am

thank you sir,verymuch thanks if i want to bind the combobox with a database table and update the values according to that is that possible?
thank you thank you sir,
if i want to bind the combobox with a database table and update the values according to that is that possible?
in one column i have the mobile company name and another table i have the model name if company name is selected the the model column will be shown in combobox 2?
is that possible sir?

[no name] 19-Dec-12 10:31am

Yes it possible..
http://social.msdn.microsoft.com/forums/en-US/winformsdatacontrols/thread/5ca52b03-1819-411d-aec7-b5ddc1e5d368

http://www.c-sharpcorner.com/blogs/6546/databinding-in-combobox-using-c-sharp.aspx

shaikh-adil 19-Dec-12 10:37am

updated my comment please check it

[no name] 19-Dec-12 10:39am

Its possible...

shaikh-adil 19-Dec-12 10:45am

can you guide me to achieve
please if you can

shaikh-adil 19-Dec-12 10:36am

wow, you have almost every link for every quetion ready????
you are indian google, paaji
:D

[no name] 19-Dec-12 10:39am

No man.. I know all this stuff.. so easily I can get it... and ya I'm not a sir paaji.. Just a 20 years old student.. :) :)

shaikh-adil 19-Dec-12 10:42am

why you are lying, you are doing BCA and you are only 20 years??
i am doing my graduation in mumbai, BSc.IT 3rd year and i am 21.
so how can you be 20

[no name] 19-Dec-12 10:45am

I'm at my final year.. Its my last year.. Only one and almost a half semester is remaining.. :)

shaikh-adil 19-Dec-12 10:47am

same here, 5th sem is over and 6th semester will be at march start or in feb. of b.sc IT
you have done your H.Sc and joined BCA course?

[no name] 19-Dec-12 10:50am

please contact me on following addresses.. Because here its not good to talk like this... hope you'll understand :) :)

[no name] 19-Dec-12 10:47am

my dob is 11 dec 1992 so it could be possible... If you want to know more about me,
gmail : kunalrohit92@gmail.com
skype : kunal.rohit2
fb : k.rohit2

shaikh-adil 19-Dec-12 10:58am

can you guide me to achieve please if you can
for column binding and changing the column as per the first combobox?
please

[no name] 19-Dec-12 10:59am

I need to work out on that first..

shaikh-adil 19-Dec-12 11:04am

okay bro, thanks for working on that.
and tell me please if you get the answer