[英]Window.ShowDialog failes on return
我有一個自定義輸入對話框,要求輸入用戶名和共振(由於原因),以便在應用程序中執行某些操作。 用戶單擊主窗口上的按鈕,對話框隨即顯示。
然后,用戶輸入他/她的姓名和原因,然后單擊“確定”。 然后對話框關閉,但我(程序)從不收到答案。 這是我的輸入對話框的XAML:
<Window x:Class="Sequence_Application_2.GUI.ForcedRackInput"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
Title="Forcera Rack" Height="300" Width="300"
WindowStartupLocation="CenterScreen">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="21*"/>
<ColumnDefinition Width="274*"/>
</Grid.ColumnDefinitions>
<TextBox Name="OperatorNameText" HorizontalAlignment="Left" Height="23" Margin="15,36,0,0" TextWrapping="Wrap" VerticalAlignment="Top" Width="120" Grid.ColumnSpan="2"/>
<Label x:Name="label" Content="Namn:" HorizontalAlignment="Left" Margin="10,10,0,0" VerticalAlignment="Top" Grid.ColumnSpan="2"/>
<Label x:Name="label1" Content="Orsak:" HorizontalAlignment="Left" Margin="10,72,0,0" VerticalAlignment="Top" Grid.ColumnSpan="2"/>
<Border BorderThickness="1" BorderBrush="Black" Grid.ColumnSpan="2" Margin="0,0,0,0.5">
<TextBox Name="ReasonText" Margin="15,98,15,0" TextWrapping="Wrap" VerticalAlignment="Top" Height="116" />
</Border>
<Button Name="OkButton" IsDefault="True" Content="OK" Click="OkButtonPressed" HorizontalAlignment="Left" Margin="26.202,233,0,0" VerticalAlignment="Top" Width="75" Cursor="Arrow" Grid.Column="1"/>
<Button Name="CancelButton" IsCancel="True" Content="Avbryt" Margin="152.202,233,47,0" VerticalAlignment="Top" Cursor="Arrow" Grid.Column="1"/>
</Grid>
</Window>
這是“隱藏代碼”:
namespace Sequence_Application_2.GUI
{
using System.Windows;
public partial class ForcedRackInput : Window
{
public string OperatorName { get { return OperatorNameText.Text; } }
public string ForcedRackReason { get { return ReasonText.Text; } }
public ForcedRackInput()
{
InitializeComponent();
}
private void OkButtonPressed(object sender, RoutedEventArgs e)
{
this.DialogResult = true;
}
}
}
這就是我調用代碼的方式(從模型而不是“窗口類”)
public void ForceClosingRack(Flow forcedFlow)
{
var forcedRackWindow = new ForcedRackInput();
string operatorName = "";
string reasonForForced = "";
if( forcedRackWindow.ShowDialog() == true)
{
operatorName = forcedRackWindow.OperatorName;
reasonForForced = forcedRackWindow.ForcedRackReason;
}
} // code jumps from "if(forcedRackWindow.... to this line when ok is clicked in the dialog
尋找解決方案已有一段時間,我正要改變職業
謝謝你的時間
我的猜測是問題不在於代碼,這似乎沒問題,而在於您的if
語句。
當您在Debug
模式下運行程序時,它應該可以正常工作。
我的猜測是,您在if
語句中分配了變量operatorName
和reasonForForced
但它們並未在程序中的其他任何地方使用,因此整個if
語句被編譯器忽略,並且在Release
模式下運行時不存在。
在代碼中進行小的修改,根據變量值嵌入不同的行為,可以證明我的猜測:
private void Button_Click(object sender, RoutedEventArgs e)
{
var forcedRackWindow = new ForcedWindow();
string operatorName = "foo";
string reasonForForced = "foo";
if (forcedRackWindow.ShowDialog() == true)
{
operatorName = forcedRackWindow.OperatorName;
reasonForForced = forcedRackWindow.ForcedRackReason;
}
if(!operatorName.Equals(reasonForForced))
{
MessageBox.Show("We are not the same");
}
}
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