How to use dropdownlistfor in asp.net mvc

In asp.net mvc, you can use the Dropdownlistfor method to allow users to select a number in a list that has been set. The usage is not complex, here simply makes a record.

First we want to define a Model, the user selects the specified value in the DropDownList to assign to the attribute Readytimehour

public class Ericsunmodel
{public
    string Readytimehour {get; set;}
}

After the model is defined, the logic of the controller is then processed

"Note: Here is a viewdata to record all the list values to be displayed in the DropDownList."

Public ActionResult ericsunaction ()
{
    Ericsunmodel Esmodel = new Ericsunmodel ();
    Esmodel.readytimehour = ";
    
    " Generatereadytimeviewdata ();
    
    Return View (Esmodel);
}
    
private void Generatereadytimeviewdata ()
{
    viewdata["hourlist"] = Gettimehourlist ();
}
    
Private list<selectlistitem> gettimehourlist ()
{
    list<selectlistitem> hourlist = new List< Selectlistitem> ();
    
    for (int i = 0; i < i++)
    {
        if (I <)
        {
            Hourlist.add (new SelectListItem {Text = "0" + i.to String (), Value = "0" + i.tostring ()});
        else
        {
            Hourlist.add (new SelectListItem {Text = i.ToString (), Value = i.ToString ()});
        }
    
    return hourlist;
}

Next we can use the following line of code in the View to bind DropDownList

"NOTE: The first parameter is the property in the binding Model , that is,--> to assign a value to this property"

"NOTE: The second parameter is DropDownList for all data sources"

@Html. Dropdownlistfor (M => m.readytimehour, viewdata["Hourlist"] as list<selectlistitem>)

The screenshot below shows

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