what is the Difference between listbox and combo box?

In List Box we have to choose one of the option from the drop down list In Combo just like radio button we have to choose any one

what is the difference between checkbox and radiobutton?

In check box you can have multiple choice but in case of radio button you have select any one at a time.

which property is used to lock a textbox to enter data?

TextBox.Enabled = True; This property is used to lock the text box to enter data.

What are different authentication types. How do you retrieve user id

There are mainly three types of authentication types in .NET. These are i) Forms Authentication. ii) Windows Authentication. iii)Passport Authentication.

If you are calling three SPs from a window application how do u check

We can check the performance of SP's with SQL Profiler

which Property is used to count no. of items in a combobox?

combobox1.items.count

What is datagrid?

Datagrid is a server control to display retrieved values from database in Formated way

what are events?

Event means action performed on a component.

List out controls which does not have events?

Line and shape control donot have any events. Similarly, Pointer control also doesn't have any events.

I have two combobox .. and i have some items in both combobox now i n

For inti As Integer = 0 To ComboBox1.Items.Count - 1 For intj As Integer = 0 To ComboBox2.Items.Count - 1 If ComboBox1.Items(inti).ToString = ComboBox2.Items(intj).ToString Then MessageBox.Show(ComboBox1.Items(inti)

What is boxing and how it is done internally?

Boxing is an implicit conversion of a value type to the type object int i = 123; // A value type Object box = i // Boxing CASTING: casting is the process of converting a variable from one type to another (from a string to an integer) Un

what are the types of combo box?

There are 3 types 1.simple 2.dropdown 3.dropdownlist

How insert recored in the database

insert into values (Parm1,parm2....)

which property of menu cannot be set at run time?

Name property

How do you customize the column content inside the datagrid?

1.Right click on the datagrid 2.click property builder 3.A datagrid properties window is opened.u will find few options on left side like general,column,paging,format. 4.double click on coloumn u will get boundcolumn,button coloumn ,hyperlink

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