我有一个复选框,选中后,为下拉选择框指定一个值。问题是,选择下拉列表设计为var builder = new WebHostBuilder();
builder = builder.UseKestrel();
builder = builder.UseConfiguration(config);
builder = builder.UseContentRoot(Directory.GetCurrentDirectory());
builder = builder.UseStartup<Startup>();
var host = builder.Build();
,并且为select的值分配不起作用。
我已经找了一段时间的解决方案但是没有一个明确的解决方案解释。我希望,你可以帮助我解决问题。提前感谢您的建议。
以下是没有Select2&#39;它如何运作的工作示例。 fiddle link
以下是使用Select2&#39;的代码段和fiddle&#39; &#39;不工作的版本&#39;例如:
Sub TestListBox()
Dim lstRw As Integer
Dim vertical As String
Dim i As Integer
Dim j As Integer
lstRw = ThisWorkbook.Sheets(1).Range("A" & Rows.Count).End(xlUp).Row
ListBox1.ColumnCount = 7
ListBox1.Clear
For i = 2 To lstRw
If ComboBox4.Value = ThisWorkbook.Sheets(1).Range("A" & i).Value Then
Me.ListBox1.AddItem ThisWorkbook.Sheets(1).Range("A" & i).Value
j = 1
Me.ListBox1.List(ListBox1.ListCount - 1, j) = ThisWorkbook.Sheets(1).Range("B" & i).Value
j = j + 1
Me.ListBox1.List(ListBox1.ListCount - 1, j) = ThisWorkbook.Sheets(1).Range("C" & i).Value
j = j + 1
Me.ListBox1.List(ListBox1.ListCount - 1, j) = ThisWorkbook.Sheets(1).Range("D" & i).Value
j = j + 1
Me.ListBox1.List(ListBox1.ListCount - 1, j) = ThisWorkbook.Sheets(1).Range("E" & i).Value
j = j + 1
Me.ListBox1.List(ListBox1.ListCount - 1, j) = ThisWorkbook.Sheets(1).Range("F" & i).Value
j = j + 1
Me.ListBox1.List(ListBox1.ListCount - 1, j) = ThisWorkbook.Sheets(1).Range("G" & i).Value
End If
Next i
End Sub
&#13;
Select2
&#13;
答案 0 :(得分:1)
您可以触发name
事件以强制刷新选择值:
change
答案 1 :(得分:1)
为此,你必须使用select2 change
事件调用/刷新,只需在分配新值时将其添加到代码中:
$("select#appearance").val("green").trigger('change');
所以会像
一样
$(".js-example-basic-single").select2();
$(function() {
$("#geStd").click(function() {
if ($(this).attr('id') === "geStd") {
$("select#appearance").val("green").trigger('change');
} else {
$("#geStd").prop('checked', false);
}
});
$("select").change(function() {
if (this.value !== "green") {
$("#geStd").prop('checked', false);
}
});
});
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" />
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.4/css/select2.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/select2/4.0.4/js/select2.full.min.js"></script>
<div class="col-md-9">
<input id="geStd" type="checkbox">
<label for="geStd">Set to standard</label>
</div>
<div class="row">
<label for="" class="col-md-4">Appearance</label>
<div class="col-md-8">
<select id="appearance" name="" class="form-control js-example-basic-single">
<option value="">Select one</option>
<option value="red">Red</option>
<option value="green">Green</option>
</select>
</div>
</div>