javascript 基于下拉选择 mvc 4 razor c# 的显示/隐藏控件
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Show/hide control based on dropdown selection mvc 4 razor c#
提问by Steve Ed
Here is my code
这是我的代码
@Html.DropDownListFor(z => z.SelectedReportId, new SelectList(Model.ReportTypes, "Value", "Text", Model.SelectedReportId), "-- Select Report --")
@Html.CheckBoxFor(model => model.IncludePhotos)@Html.LabelFor(model => model.IncludePhotos)
Which generates:
产生：
<select data-val="true" data-val-number="The field SelectedReportId must be a number." data-val-required="The SelectedReportId field is required." id="SelectedReportId" name="SelectedReportId">
<option value="">-- Select Report --</option>
<option value="1">Excel Report</option>
<option value="2">Text Report</option>
</select>
<br />
<input data-val="true" data-val-required="The Include photos in the report field is required." id="IncludePhotos" name="IncludePhotos" type="checkbox" value="true" />
I have one dropdown and a checkbox, I need to disable the checkbox if the user selects the first value in dropdown. Here is the javascript I am using without success
我有一个下拉列表和一个复选框，如果用户选择下拉列表中的第一个值，我需要禁用该复选框。这是我使用的 javascript，但没有成功
$(function () {
$('#SelectedReportId').change(function () {
var value = $(this).val();
if (value == '1') {
$('#IncludePhotos').show();
} else {
$('#IncludePhotos').hide();
}
});
});
Appreciate any help, thank you
感谢任何帮助，谢谢
采纳答案by Steve Ed
Included javascript inside a @section scripts{} section and it started working,
在@section scripts{} 部分中包含 javascript 并开始工作，
@section scripts{ <script type="text/javascript">
$(function () {
$('#SelectedReportId').change(function () {
var value = $(this).val();
if (value == '1') {
$('#IncludePhotos').show();
} else {
$('#IncludePhotos').hide();
}
});
});</script>}
回答by Muhd Alavu
try this
试试这个
@Html.DropDownListFor(z => z.SelectedReportId, new SelectList(Model.ReportTypes, "Value", "Text", Model.SelectedReportId),new {id="myDropdown"}
@Html.CheckBoxFor(model => model.IncludePhotos,new {id="myCheckbox"})
$(function () {
$('#myDropdown').change(function () {
var value = $(this).val();
var fistVal=$('#myDropdown option:first-child').attr("selected", "selected");
if (value == fistVal) {
$('#IncludePhotos').show();
} else {
$('#IncludePhotos').hide();
}
});
});
