How to set default value in select html

Question

User-81839486 posted

I have form

<form asp-page-handler="numberOfRows" method="POST" asp-area="" asp-page="/PagesWithTables/ShowProduktyTable" >
<button type="submit" class="btn btn-default">zmień</button>
<select asp-for="InputShowOnPage.ShowOnPage"
asp-items="Model.Items"></select>
</form>

also 

public string ShowOnPage { get; set; }

public IEnumerable<SelectListItem> Items { get; } = new List<SelectListItem>
{
new SelectListItem{Value= "10", Text="10"},
new SelectListItem{Value= "25", Text= "25"},
new SelectListItem{Value= "50", Text="50"},
new SelectListItem{Value= "100", Text="100"},
};

how can I create default value in select to 50?

Answer 1

User475983607 posted

Set the selected property to true.

public IEnumerable<SelectListItem> Items { get; } = new List<SelectListItem>
{
    new SelectListItem{Value= "10", Text="10"},
    new SelectListItem{Value= "25", Text= "25"},
    new SelectListItem{Value= "50", Text="50", Selected = true },
    new SelectListItem{Value= "100", Text="100"}
};

Answer 2

User-474980206 posted

just set the model value:   

   ShowOnPage = "50";