C# String.Format在Xamarin.Forms中没有提供正确的字符串
我想以标签格式显示文本,但显示的值不正确 它在调试模式下显示正确的值。但它在屏幕上显示错误。理想情况下,屏幕应将总计和小计显示为图像一 格式化字符串的代码C# String.Format在Xamarin.Forms中没有提供正确的字符串,c#,xamarin,xamarin.forms,C#,Xamarin,Xamarin.forms,我想以标签格式显示文本,但显示的值不正确 它在调试模式下显示正确的值。但它在屏幕上显示错误。理想情况下,屏幕应将总计和小计显示为图像一 格式化字符串的代码 string paymentFormat = "{0,-25} {1,8}\n"; string paymentMode = "Total"; // Or Subtotal string paymentAmount = "604.00"; string test = string.Format(paymentFormat, paymen
string paymentFormat = "{0,-25} {1,8}\n";
string paymentMode = "Total"; // Or Subtotal
string paymentAmount = "604.00";
string test = string.Format(paymentFormat, paymentMode, paymentAmount);
更新
public class AlertPopupViewItem : ContentView
{
Label HeaderLabel,MessageLabel;
public Button OKButton, CancelButton;
AbsoluteLayout _overlay;
LoggerService logservice;
public bool ButtonValue = false;
StackLayout CancelStackLayout, OKStackLayout;
string PageSource = string.Empty;
public AlertPopupViewItem()
{
logservice = new LoggerService();
logservice.WriteData(Constants.DEBUG_LOGGING, "Alert Message Popup ctor.. Start");
_overlay = new AbsoluteLayout
{
BackgroundColor = Color.Black.MultiplyAlpha(0.5),
HorizontalOptions = LayoutOptions.Fill,
VerticalOptions = LayoutOptions.Fill,
};
Grid mainGrid = new Grid
{
HeightRequest = 40,
BackgroundColor = Color.White,
Padding = 20,
RowDefinitions =
{
new RowDefinition { Height = new GridLength(15, GridUnitType.Star) },//0 Title
new RowDefinition { Height = new GridLength(3, GridUnitType.Star) },//1 Line
new RowDefinition { Height = new GridLength(80, GridUnitType.Star) },//2 Message
new RowDefinition { Height = new GridLength(12, GridUnitType.Star) },//3 OK-Cancel
}
};
HeaderLabel = new Label
{
FontAttributes = FontAttributes.Bold,
FontSize = 22,
TextColor = Color.Black,
HorizontalTextAlignment= TextAlignment.Center,
VerticalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
VerticalOptions =LayoutOptions.CenterAndExpand
};
BoxView divider = new BoxView
{
HeightRequest = 1,
Color = Color.Gray,
VerticalOptions = LayoutOptions.End,
};
MessageLabel = new Label
{
FontAttributes = FontAttributes.None,
FontSize = 13,
HorizontalTextAlignment = TextAlignment.Start,
VerticalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.StartAndExpand,
TextColor = Color.Black
};
ScrollView scroll = new ScrollView()
{
Orientation = ScrollOrientation.Vertical
};
scroll.Content = MessageLabel;
Grid ButtonGrid = new Grid
{
HeightRequest = 35,
ColumnDefinitions =
{
new ColumnDefinition {Width=new GridLength(58,GridUnitType.Star) },
new ColumnDefinition {Width=new GridLength(20,GridUnitType.Star) },
new ColumnDefinition {Width=new GridLength(2,GridUnitType.Star) },
new ColumnDefinition {Width=new GridLength(20,GridUnitType.Star) }
}
};
CancelStackLayout = new StackLayout
{
Padding = new Thickness(-6, -6, -6, -6),
//VerticalOptions = LayoutOptions.Center,
BackgroundColor = Color.FromHex("#ff9500")
};
CancelButton = new Button
{
TextColor = Color.White,
FontSize = 15,
BorderRadius = 0,
Text = Localizer.Localize("CancelSmall"),
BackgroundColor = Color.FromHex("#01458e"),
HorizontalOptions =LayoutOptions.FillAndExpand,
VerticalOptions=LayoutOptions.FillAndExpand,
BorderColor = Color.Transparent
};
CancelButton.Clicked += CancelButtonClicked;
CancelStackLayout.Children.Add(CancelButton);
ButtonGrid.Children.Add(CancelStackLayout, 1, 0);
OKStackLayout = new StackLayout
{
Padding = new Thickness(-6, -6, -6, -6),
BackgroundColor = Color.FromHex("#ff9500")
};
OKButton = new Button
{
TextColor = Color.White,
FontSize = 15,
BorderRadius = 0,
Text = Localizer.Localize("OK"),
BackgroundColor = Color.FromHex("#01458e"),
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BorderColor = Color.Transparent
};
OKButton.Clicked += OKButtonClicked;
OKStackLayout.Children.Add(OKButton);
ButtonGrid.Children.Add(OKStackLayout, 3, 0);
mainGrid.Children.Add(HeaderLabel, 0, 0);
mainGrid.Children.Add(divider, 0, 1);
mainGrid.Children.Add(scroll, 0, 2);
mainGrid.Children.Add(ButtonGrid, 0, 3);
AbsoluteLayout.SetLayoutFlags(mainGrid, AbsoluteLayoutFlags.All);
AbsoluteLayout.SetLayoutBounds(mainGrid, Findlayoutbounds(new Rectangle(0.20, 0.25, 0.5, 0.50)));
_overlay.Children.Add(mainGrid);
Content = _overlay;
logservice.WriteData(Constants.DEBUG_LOGGING, "Alert Message Popup ctor.. End");
}
// ThreadHandle thread = new ThreadHandle();
private void CancelButtonClicked(object sender, EventArgs e)
{
ButtonValue = false;
this.IsVisible = false;
// thread.WorkMethod();
}
private void OKButtonClicked(object sender, EventArgs e)
{
ButtonValue = true;
if (PageSource == "StarterPage") ;
//MessagingCenter.Send(this, "ModifyValBooleanForAlert");
this.IsVisible = false;
// thread.WorkMethod();
}
Rectangle Findlayoutbounds(Rectangle fractionalRect)
{
if (fractionalRect.Width - 1 == 0)
fractionalRect.Width = 0.99;
if (fractionalRect.Height - 1 == 0)
fractionalRect.Height = 0.99;
Rectangle layoutbounds = new Rectangle
{
X = fractionalRect.X / (1 - fractionalRect.Width),
Y = fractionalRect.Y / (1 - fractionalRect.Height),
Width = fractionalRect.Width,
Height = fractionalRect.Height
};
return layoutbounds;
}
public void DisplayAlertPopup(string alertBoxTitle, string alertBoxContent,bool CancelDisplay)
{
HeaderLabel.IsVisible = false;
CancelStackLayout.IsVisible = CancelDisplay;
CancelButton.IsVisible = CancelDisplay;
HeaderLabel.Text = alertBoxTitle;
MessageLabel.Text = alertBoxContent;
OKButton.Text = Localizer.Localize("OK");
CancelButton.Text = Localizer.Localize("CancelSmall");
HeaderLabel.IsVisible = true;
}
public void DisplayAlertPopup(string alertBoxTitle, string alertBoxContent, string ButtonText)
{
CancelStackLayout.IsVisible = false;
CancelButton.IsVisible = false;
HeaderLabel.Text = alertBoxTitle;
MessageLabel.Text = alertBoxContent;
OKButton.Text = ButtonText;
}
public void DisplayAlertConditionalPopup(string alertBoxTitle, string alertBoxContent, bool CancelDisplay)
{
CancelStackLayout.IsVisible = CancelDisplay;
CancelButton.IsVisible = CancelDisplay;
HeaderLabel.Text = alertBoxTitle;
MessageLabel.Text = alertBoxContent;
this.IsVisible = true;
}
public void SetButtonText(string OKText, string CancelText)
{
if (OKText != null)
OKButton.Text = OKText;
if (CancelText != null)
CancelButton.Text = CancelText;
}
}
我从其他类获取格式化字符串,并调用displayertpopup
方法MessageLabel
是我为其设置此值的标签
更新2:
正如在回答中所建议的,我已经尝试了下面的代码来设置Android的字体。但它也不能以所需的格式显示文本
MessageLabel = new Label
{
FontAttributes = FontAttributes.None,
FontSize = 13,
HorizontalTextAlignment = TextAlignment.Start,
VerticalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.StartAndExpand,
TextColor = Color.Black,
FontFamily = "Droid Sans Mono"
};
您需要使用固定宽度的字体。不幸的是,所有平台都没有内置的,但每个平台都有自己的:
- iOS-信使新
- 机器人无单声道
- UWP-Consolas
OnPlatform
语法设置字体(理想情况下创建一个静态资源,以便可以重用):<OnPlatform x:TypeArguments="x:String" x:Key="MyFontFamily">
<On Platform="Android" Value="MyFont.ttf#Open Sans" />
<On Platform="UWP" Value="/Assets/MyFont.ttf#Open Sans" />
<On Platform="iOS" Value="MyFont" />
</OnPlatform>
然后像这样使用:
<Label FontFamily="{StaticResource MyFontFamily}" />
你能分享xaml页面吗?你在谈论两个金额不一致的事实吗?@Kzrystof是的,两个金额都不一致。@PaulKaram我已经更新了question@viveknuna你能不能把字体改成像Console这样的字体?我不能解决我的问题,你能帮我吗?哪个问题?我发布的解决方案无效?我尝试了Android的Droid Sans Mono。但是它显示的是相同的旧格式错误还有一件事我需要在code behind(C#)中设置字体,而不是在Xaml中设置字体,并且字体实际发生了变化(ouptut看起来不同吗?)。可能更改未成功,因此您仍然可以看到默认字体