Edit combobox in windows form application

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Hi I am
binding combo box Using following code
combobox binding code

C#

cProduct obj = new cProduct();
            obj.ppro_CompanyId = csession.CompanyId;
            obj.ppro_IsActive = "true";
            cmbProduct.DisplayMember = "ppro_ProductName";
            cmbProduct.ValueMember ="ppro_ProductId";
            cmbProduct.DataSource = obj.GetProduct();//returns Array list

Now Want to programatically select the combobox to a specified ValueMember

Please help me

Posted 5-Mar-14 1:11am

Member 10296413

Updated 5-Mar-14 1:37am

Tom Marvolo Riddle

v3

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*dan!sh* · Accepted Answer · 2014-03-05T01:47:00

Solution 1

You can set SelectedIndex property for the combobox after doing data binding.

Update: This just works.

XML

List<MyClass> lst = new List<MyClass>();
           lst.Add(new MyClass { MyProperty = 1, MyProperty1 = "1" });
           lst.Add(new MyClass { MyProperty = 2, MyProperty1 = "2" });
           lst.Add(new MyClass { MyProperty = 3, MyProperty1 = "3" });

           comboBox1.DataSource = lst;
           comboBox1.DisplayMember = "MyProperty1";
           comboBox1.ValueMember = "MyProperty";

           comboBox1.SelectedValue = 2;

Posted 5-Mar-14 1:47am

dan!sh

Updated 5-Mar-14 19:12pm

v2

Comments

Member 10296413 6-Mar-14 0:44am

Thank you for your responce
My problem is how to get the index(I have to search the index by value field
for the Same case in Asp Dropdown I'm using the following code
ddScreanNameClass.SelectedIndex = ddScreanNameClass.Items.IndexOf(ddScreanNameClass.Items.FindByValue("3"));

I have to do the Same for comboxes in Windows form application

dan!sh 6-Mar-14 0:48am

You also try using SelectedValue property.

Member 10296413 6-Mar-14 0:59am

if I use selected value property the value field of the selected Item will change and display field is not.

I want to pragmatically select the item in which the value field is specified value field
I done it in As using the code specified I first time using windows form application Please help me

dan!sh 6-Mar-14 1:12am

Updated the reply.

Member 10296413 6-Mar-14 1:30am

In ur code the display and value field are same
it wont work if you are use different like

List<myclass> lst = new List<myclass>();
lst.Add(new MyClass { MyProperty = 1, MyProperty1 = "First" });
lst.Add(new MyClass { MyProperty = 2, MyProperty1 = "Second" });
lst.Add(new MyClass { MyProperty = 3, MyProperty1 = "Third" });

comboBox1.DataSource = lst;
comboBox1.DisplayMember = "MyProperty1";
comboBox1.ValueMember = "MyProperty";

comboBox1.SelectedValue = 2;

dan!sh 6-Mar-14 1:32am

Did you even tried it?