how to update the second combobox when first combobox's selection change(database connectivity)

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in windows forms i have two comboboxes first is for mobile manufacturer i.e nokia,samsung,sony and second combobox is for company's model like nokia pure view, samsung s3, htc one,
i want to change the model number as per the changes will happen to the first column, i means when user select nokia in the combobox1 then the combobox2 will show the company's model like nokia pure view, 6600,7610 etc etc from the next combobox, i dont want to save the model no. in the combobox's list i want to use the database connectivity with combobox so that i can update the new new upcoming model in the column then it will be easy so by reviewing i can bind the column with the combobox but how can i change the column when selection is change in combobox1
i prieously used the selection change event of the combobox with the strings saving all the models, but it is too hilarious that if i want to update the model i want to edit the whole software. so i decided it should be in a column so that i can update that but i dont know to logic how to change
sorry for my bad explanation i am weak in english
i have used this before

if ("samsung" == comboBox1.SelectedItem.ToString())
           {
               comboBox2.Items.AddRange(samsung);
           }
           else if ("apple" == comboBox1.SelectedItem.ToString())
           {
               comboBox2.Items.AddRange(apple);
           }

Posted 30-Dec-12 1:28am

sariqkhan

Updated 30-Dec-12 4:51am

v3

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Espen Harlinn · Accepted Answer · 2012-12-30T02:33:00

Solution 1

Here is a detailed guide: Cascading DropDownLists with jQuery and ASP.NET[^]

I've written a bit about databinding here: Depends4Net - Part 2[^]

Best regards
Espen Harlinn

Posted 30-Dec-12 2:33am

Espen Harlinn

Updated 30-Dec-12 4:55am

v2

Comments

sariqkhan 30-Dec-12 9:03am

i am using windows form

Espen Harlinn 30-Dec-12 9:07am

Then the answer is even easier, just use a BindingSource to provide the elements - http://msdn.microsoft.com/en-us/library/system.windows.forms.bindingsource.aspx

Settng them up is similar to: http://msdn.microsoft.com/en-us/library/c12c1kx4.aspx

sariqkhan 30-Dec-12 10:51am

can you tell me verbally the link i cant understand, i am a newbie

Espen Harlinn 30-Dec-12 10:54am

Try reading up on Windows Forms Data Binding: http://msdn.microsoft.com/en-us/library/ef2xyb33.aspx