我想在单击事件后从条目输入中检索值。我怎样才能检索它。以下是我的 XAML 代码:
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:HelloWorld"
x:Class="HelloWorld.MainPage">
<StackLayout Spacing="10" x:Name="layout">
<Label Text="Name" VerticalOptions="Start" FontSize="Large"/>
<Entry x:Name="name" Placeholder="Enter your name"/>
<Label Text="Password" VerticalOptions="Start" FontSize="Large"/>
<Entry x:Name="password" IsPassword="True" Placeholder="****"/>
<Label Text="Date of Birth" VerticalOptions="Start" FontSize="Large"/>
<DatePicker x:Name="dob"/>
<Label Text="Gender" VerticalOptions="Start" FontSize="Large"/>
<Picker x:Name="GenderPicker" HorizontalOptions="FillAndExpand">
<Picker.Items>
<x:String>Male</x:String>
<x:String>Female</x:String>
</Picker.Items>
</Picker>
<Button x:Name="submit" Text="Save" BorderWidth="20" Clicked="submit_Clicked"/>
</StackLayout>
</ContentPage>
我想在 submit_Clicked(( 方法中检索数据。
private void submit_Clicked(object sender, EventArgs e)
{
how?
}
您可以从
Entry.Text
属性中获取值。例如:
private void submit_Clicked(object sender, EventArgs e)
{
var nameValue = name.Text;
}
private void submit_Clicked(object sender, EventArgs e)
{
Entry entry = e as Entry;
var text=entry.Text;
}
private void submit_Clicked(object sender, EventArgs e)
{
var entry_name = new Entry {Placeholder= "name" };//for getting value of Entry name
var entry_password = new Entry {Placeholder ="password" };
var text=entry_name.Text;
var password= entry_password.Text;
}
在如何执行此操作的下面,您可能需要先投射它。
private void submit_Clicked(object sender, EventArgs e)
{
Entry entry = sender as Entry;
var text=entry.Text;
}