C# xamarin.forms-我在StackLayout中遇到布局问题

我正在使用xamarin.forms StackedLayout，如下所示：

<StackLayout Orientation="Horizontal" HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand">

    <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">
        <Entry x:Name="Community" WidthRequest="200" Placeholder="Community" />
        <Entry x:Name="Job" WidthRequest="200" Placeholder="Job" />
        <Entry x:Name="Model" WidthRequest="200" Placeholder="Model" />
        <Entry x:Name="Elevation" WidthRequest="200" Placeholder="Elevation" />
        <Entry x:Name="Email" WidthRequest="200" Placeholder="Email" />
        <Entry x:Name="C_Email" WidthRequest="200" Placeholder="C_Email" />
        <Entry x:Name="Buyer_Salutation" WidthRequest="200" Placeholder="Buyer_Salutation" />
        <Button x:Name="FrontCamera" Text="Front Licence" Clicked="OnFrontCamera" Style="{StaticResource ButtonStyle}" />
    </StackLayout>
    <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">

        <Entry x:Name="Customer_Name" WidthRequest="200" Placeholder="Customer_Name" />
        <Entry x:Name="Customer_LName" WidthRequest="200" Placeholder="Customer_LName" />
        <Entry x:Name="C_Buyer_Salutation" WidthRequest="200" Placeholder="C_Buyer_Salutation" />
        <Entry x:Name="CoBuyer_Name" WidthRequest="200" Placeholder="CoBuyer_Name" />
        <Entry x:Name="CoBuyer_LName" WidthRequest="200" Placeholder="CoBuyer_LName" />
        <Entry x:Name="Address1" WidthRequest="200" Placeholder="Address1" />
        <Entry x:Name="City" WidthRequest="200" Placeholder="City" />
        <Button x:Name="BackCamera" Text="Back Licence" Clicked="OnBackCamera" Style="{StaticResource ButtonStyle}" />

    </StackLayout>
    <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">

        <Entry x:Name="Phone1Cell" WidthRequest="200" Placeholder="Phone1Cell" />
        <Entry x:Name="Phone1Work" WidthRequest="200" Placeholder="Phone1Work" />
        <Entry x:Name="Phone2Main" WidthRequest="200" Placeholder="Phone2Main" />
        <Entry x:Name="Phone2Cell" WidthRequest="200" Placeholder="Phone2Cell" />
        <Entry x:Name="Phone2Work" WidthRequest="200" Placeholder="Phone2Work" />
        <Entry x:Name="Province" WidthRequest="200" Placeholder="Province" />
        <Entry x:Name="Zip" WidthRequest="200" Placeholder="Zip" />
        <Button x:Name="ScanLicence" Text="Scan Licence" Clicked="OnCameraScan" Style="{StaticResource ButtonStyle}" />
        <zxing:ZXingScannerView x:Name="BarcodeScanView" IsVisible="false" HeightRequest="200" OnScanResult="Handle_OnScanResult" />

    </StackLayout>

</StackLayout>

这是伟大的工作！我有3个StackLayout并排，这正是我想要的，现在我想添加另一个StackLayout，它将位于3个StackLayouts下面，我该如何做？我尝试添加第四个StackLayout，但它继续并排运行，而不是在第三个StackLayout下…这是我尝试添加的第四个StackLayout

<StackLayout HorizontalOptions="FillAndExpand">
        <Button x:Name="GenerateContract" Text="Generate Contract" Clicked="OnGenerateContract" Style="{StaticResource ButtonStyle}" />
    </StackLayout>

我该如何解决这个问题

我还尝试了以下方法：

<StackLayout Orientation="Horizontal" HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand">

    <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">
        <Entry x:Name="Community" WidthRequest="200" Placeholder="Community" />
        <Entry x:Name="Job" WidthRequest="200" Placeholder="Job" />
        <Entry x:Name="Model" WidthRequest="200" Placeholder="Model" />
        <Entry x:Name="Elevation" WidthRequest="200" Placeholder="Elevation" />
        <Entry x:Name="Email" WidthRequest="200" Placeholder="Email" />
        <Entry x:Name="C_Email" WidthRequest="200" Placeholder="C_Email" />
        <Entry x:Name="Buyer_Salutation" WidthRequest="200" Placeholder="Buyer_Salutation" />
        <Button x:Name="FrontCamera" Text="Front Licence" Clicked="OnFrontCamera" Style="{StaticResource ButtonStyle}" />
    </StackLayout>
    <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">

        <Entry x:Name="Customer_Name" WidthRequest="200" Placeholder="Customer_Name" />
        <Entry x:Name="Customer_LName" WidthRequest="200" Placeholder="Customer_LName" />
        <Entry x:Name="C_Buyer_Salutation" WidthRequest="200" Placeholder="C_Buyer_Salutation" />
        <Entry x:Name="CoBuyer_Name" WidthRequest="200" Placeholder="CoBuyer_Name" />
        <Entry x:Name="CoBuyer_LName" WidthRequest="200" Placeholder="CoBuyer_LName" />
        <Entry x:Name="Address1" WidthRequest="200" Placeholder="Address1" />
        <Entry x:Name="City" WidthRequest="200" Placeholder="City" />
        <Button x:Name="BackCamera" Text="Back Licence" Clicked="OnBackCamera" Style="{StaticResource ButtonStyle}" />

    </StackLayout>
    <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">

        <Entry x:Name="Phone1Cell" WidthRequest="200" Placeholder="Phone1Cell" />
        <Entry x:Name="Phone1Work" WidthRequest="200" Placeholder="Phone1Work" />
        <Entry x:Name="Phone2Main" WidthRequest="200" Placeholder="Phone2Main" />
        <Entry x:Name="Phone2Cell" WidthRequest="200" Placeholder="Phone2Cell" />
        <Entry x:Name="Phone2Work" WidthRequest="200" Placeholder="Phone2Work" />
        <Entry x:Name="Province" WidthRequest="200" Placeholder="Province" />
        <Entry x:Name="Zip" WidthRequest="200" Placeholder="Zip" />
        <Button x:Name="ScanLicence" Text="Scan Licence" Clicked="OnCameraScan" Style="{StaticResource ButtonStyle}" />
        <zxing:ZXingScannerView x:Name="BarcodeScanView" IsVisible="false" HeightRequest="200" OnScanResult="Handle_OnScanResult" />

    </StackLayout>

</StackLayout>
<StackLayout HorizontalOptions="FillAndExpand">
        <Button x:Name="GenerateContract" Text="Generate Contract" Clicked="OnGenerateContract" Style="{StaticResource ButtonStyle}" />
 </StackLayout>

但是我得到一个带有GenerateContact按钮的StackLayout错误：

属性“Content”设置了多次

更新

我尝试了以下方法并得到了相同的结果…4并排堆叠布局：

<StackLayout Orientation="Vertical">

        <StackLayout Orientation="Horizontal" HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand">

            <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">
                <Entry x:Name="Community" WidthRequest="200" Placeholder="Community" />
                <Entry x:Name="Job" WidthRequest="200" Placeholder="Job" />
                <Entry x:Name="Model" WidthRequest="200" Placeholder="Model" />
                <Entry x:Name="Elevation" WidthRequest="200" Placeholder="Elevation" />
                <Entry x:Name="Email" WidthRequest="200" Placeholder="Email" />
                <Entry x:Name="C_Email" WidthRequest="200" Placeholder="C_Email" />
                <Entry x:Name="Buyer_Salutation" WidthRequest="200" Placeholder="Buyer_Salutation" />
                <Button x:Name="FrontCamera" Text="Front Licence" Clicked="OnFrontCamera" Style="{StaticResource ButtonStyle}" />
            </StackLayout>
            <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">

                <Entry x:Name="Customer_Name" WidthRequest="200" Placeholder="Customer_Name" />
                <Entry x:Name="Customer_LName" WidthRequest="200" Placeholder="Customer_LName" />
                <Entry x:Name="C_Buyer_Salutation" WidthRequest="200" Placeholder="C_Buyer_Salutation" />
                <Entry x:Name="CoBuyer_Name" WidthRequest="200" Placeholder="CoBuyer_Name" />
                <Entry x:Name="CoBuyer_LName" WidthRequest="200" Placeholder="CoBuyer_LName" />
                <Entry x:Name="Address1" WidthRequest="200" Placeholder="Address1" />
                <Entry x:Name="City" WidthRequest="200" Placeholder="City" />
                <Button x:Name="BackCamera" Text="Back Licence" Clicked="OnBackCamera" Style="{StaticResource ButtonStyle}" />

            </StackLayout>
            <StackLayout Margin="5,0,5,0" HorizontalOptions="FillAndExpand">

                <Entry x:Name="Phone1Cell" WidthRequest="200" Placeholder="Phone1Cell" />
                <Entry x:Name="Phone1Work" WidthRequest="200" Placeholder="Phone1Work" />
                <Entry x:Name="Phone2Main" WidthRequest="200" Placeholder="Phone2Main" />
                <Entry x:Name="Phone2Cell" WidthRequest="200" Placeholder="Phone2Cell" />
                <Entry x:Name="Phone2Work" WidthRequest="200" Placeholder="Phone2Work" />
                <Entry x:Name="Province" WidthRequest="200" Placeholder="Province" />
                <Entry x:Name="Zip" WidthRequest="200" Placeholder="Zip" />
                <Button x:Name="ScanLicence" Text="Scan Licence" Clicked="OnCameraScan" Style="{StaticResource ButtonStyle}" />
                <zxing:ZXingScannerView x:Name="BarcodeScanView" IsVisible="false" HeightRequest="200" OnScanResult="Handle_OnScanResult" />

            </StackLayout>

        </StackLayout>

        <StackLayout HorizontalOptions="FillAndExpand" Orientation="Vertical">
            <Button x:Name="GenerateContract" Text="Generate Contract" Clicked="OnGenerateContract" Style="{StaticResource ButtonStyle}" />
        </StackLayout>

    </StackLayout>

---

您需要添加另一个包含水平布局的垂直

堆栈布局

<!-- new vertical container -->
<StackLayout>

    <!-- existing Horizontal Layout -->
    <StackLayout Orientation="Horizontal" HorizontalOptions="FillAndExpand" VerticalOptions="CenterAndExpand">
    ...
    </StackLayout>

    <!-- 2nd layout that is underneath your horizontal layouts
    <StackLayout HorizontalOptions="FillAndExpand">
      <Button x:Name="GenerateContract" Text="Generate Contract" Clicked="OnGenerateContract" Style="{StaticResource ButtonStyle}" />
    </StackLayout>

</StackLayout>


...
我试过了，但我得到了一个错误：属性“Content”被设置了不止一次。哦，我想我明白你的意思了，让我试试看。是的，我刚刚试过这个，添加了另一个StackView并包装了水平布局和其他布局，但我得到了相同的结果…我得到了4个并排的StackView。外部StackLayout是否使用了
Orientation=“Vertical”
？这是我认为正确的默认设置。GenerateContact按钮应位于其他控件的下方。然而，对于这样的布局，我强烈建议使用网格，而不是许多嵌套的堆栈布局