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="...
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 = ...
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()...
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...
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 com...
selectedIndex="-1" selectedItem="null"StylesalternatingItemColors="undefined" arrowButtonWidth="22" borderColor="0xB7BABC" borderThickness="1" closeDuration="250" closeEasingFunction="undefined" color="0x0B333C" cornerRadius="0" disabledColor="0xAAB3B3" ...
Remove/Clear the selected value from a combobox upon changing the value of another combobox I have 2 combo boxes named; Street & Location. now I want to clear the selected value of the Location combo box when the Street combo box is changed? how I can do...
When selection changes the previously selected item returns to the list and the new selection is removed. The recommended approach, rather than inserting Node instances into the items list, is to put the relevant information into the ComboBox, and then provide a custom cell factory. For ...