cbList.SelectedItem=ac.FindAll(delegate(Area ar) {returnar.Area_ID==a.Area_ID; })[0]; lbResult.Text=cbList.SelectedItem.GetType().ToString()+":"+cbList.SelectedValue.ToString(); } 其他两种设置方式: privatevoidSetValueByValue() { Area a=newArea(); a.Area_ID="8"; a.Area_Name="...
cbList.SelectedItem=ac.FindAll(delegate(Area ar) {returnar.Area_ID==a.Area_ID; })[0]; lbResult.Text=cbList.SelectedItem.GetType().ToString()+":"+cbList.SelectedValue.ToString(); } 方法三:SetValueByText(通过FindString查找DisplayMember设置) privatevoidSetValueByText() { Area a=newArea()...
在这个示例中,我们使用了Xamarin.Forms中的Picker控件,并将其绑定到名为MyList的IList。我们还使用SelectedItem属性来获取用户选择的值。 ASP.NET MVC: 代码语言:csharp 复制 @Html.DropDownListFor(m => m.SelectedValue, new SelectList(Model.MyList, "Value", "Text"), "Select an item", new { id = ...
2.善用ComboBoxItem的Tag属性,既然没有Value属性,何不直接用Tag属性充当Value呢? 代码如下: Code 代码语言:js AI代码解释 cbo2.Items.Add(newComboBoxItem(){Content="content1",Tag="tag1"});//赋值txtMsg.Text="Value="+(cbo2.SelectedItemasComboBoxItem).Tag+";Text="+(cbo2.SelectedItemasComboBox...
ComboBox / Dictionary and the "Key" value Combobox control return System.NullReferenceException: Object reference not set to an instance of an object ComboBox DisplayMember not working. ComboBox setting current value Combobox. SelectedItem, SelectedValue. What is the difference. COMException was unh...
Combobox automatically move focus when item selected? Combobox binding null value ComboBox DataTemplate ComboBox Displaying value of a dictionary of an object Combobox down arrow color change Combobox dropdown list, enter functionality Combobox in menu or toolbar??? Combobox Issue: Selected ind...
不同於 ComboBox 控制項,DataGridView 類型沒有擷取目前選取物件的 SelectedItem 屬性。 相反地,您必須將 DataGridViewComboBoxColumn.ValueMember 或DataGridViewComboBoxCell.ValueMember 屬性設定為商業物件上的屬性名稱。 當使用者進行選取時,商業物件的指示屬性會設定儲存格 Value 屬性。 若要透過...
selectedIndex="-1" selectedItem="null"StylesalternatingItemColors="undefined" arrowButtonWidth="22" borderColor="0xB7BABC" borderThickness="1" closeDuration="250" closeEasingFunction="undefined" color="0x0B333C" cornerRadius="0" disabledColor="0xAAB3B3" ...
1. Select your Street combo box in the Power Apps studio. 2. Go to the "OnChange" property of the Street combo box and enter the following formula: Reset(Location) This formula will clear the selected value in the Location combo box when the Street combo box...
获取或设置一个值,该值指示导致 SelectionChanged 事件发生的操作。 C# 复制 public ComboBoxSelectionChangedTrigger SelectionChangedTrigger { get; set; } 属性值 ComboBoxSelectionChangedTrigger 枚举的一个值。 默认值为 Committed。 Windows 要求 展开表 设备系列 Windows 10 Creators Update (在 10.0.15063.0 ...