[英]Trying to select the value that was chosen in a drop down list using the ID of the drop down list
在此處輸入圖像描述,我正在嘗試檢索最終用戶在下拉列表中選擇的值。 可變國家/地區始終為null,我正在使用下拉列表的ID來檢索用戶選擇的值。
這是我認為的代碼:
<script>
var country = document.getElementById("Countries");
var value = country.options[country.selectedIndex].value;
var text = country.options[country.selectedIndex].text;
</script>
@Html.Label("Country", "Country")
<select name="Countries" id="Countries">
@foreach (var country in ViewBag.countries)
{
<option value="@(country.country)">@(country.country)</option>
}
</select>
}
這樣嘗試
<label for="Country">Country</label> <select name="Countries" id="Countries"> <option value="Iceland">Iceland</option> <option value="Kosovo">Kosovo</option> <option value="Belgium">Belgium</option> </select>
var element = document.getElementById("Countries");
var selected_country_value = element.options[element.selectedIndex].value;
alert(selected_country_value);
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