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  • Can we bind a DropDownList using List<> in Asp .Net

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    Can we bind a DropDownList using List<> in Asp .Net

    The Answer is :
    Yes, we can bind a DropDown in Asp .Net using List<>. Please go through the following code for Example:-

    Let's create a Class say DropdownClass, in the class we create following properties :-

     public class DropdownClass
        {
    
            public int value { get; set; }
            public string text { get; set; }
    
        }
    

    Now in the aspx page, take a DropDownList control, Example:-

     <asp:DropDownList ID="DropDownList1" runat="server" OnSelectedIndexChanged="DropDownList1&#95;SelectedIndexChanged"  AutoPostBack="true"></asp:DropDownList>
    

    Now in the code behind, write the following code inside Page_Load method:

    protected void Page&#95;Load(object sender, EventArgs e)
            { 
                if (!IsPostBack)
                {
                    List<DropdownClass> lst = new List<DropdownClass>();
                    DropDownList1.DataSource = lst;
                    DropDownList1.DataValueField = "value";
                    DropDownList1.DataTextField = "text";
                    DropDownList1.DataBind();
                }
          }
    

    Now your DropDown is ready for action, you can get the SelectedValue as well as the SelectedItem in the OnSelectedIndexChanged method.

    Hope it helps... Happy Coding!

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