登录和选项卡控制可见性
Login and tab control visibility
我正在用 C# 编写程序。我正在尝试制作一个简单的登录程序。例如,当用户的详细信息正确时,则显示选项卡项的内容,如果不正确,则不显示选项卡项的内容。代码在
下
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="60"/>
<RowDefinition Height="60"/>
<RowDefinition Height="50"/>
<RowDefinition Height="30"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="1" Orientation="Horizontal">
<Label Name="lbluser" Content="User" Height="30" Width="50" />
<TextBox Name="txtuser" Width="180" Height="30"/>
</StackPanel>
<StackPanel Grid.Row="2" Orientation="Horizontal">
<Label Name="lblpass" Content="Password" Height="30"/>
<PasswordBox Name="psw" Height="30" Width="180"/>
</StackPanel>
<StackPanel Grid.Row="3" Orientation="Horizontal" HorizontalAlignment="Center">
<Button Name="btnclick" Content="Click" Width="80" Height="30" Click="btnclick_Click" />
<Button Name="btncancel" Content="Cancel" Width="80" Height="30" Margin="10,0,0,0" Click="btncancel_Click" />
<Button Name="btnclose" Content="Close" Width="80" Height="30" Margin="10,0,0,0" Click="btnclose_Click" />
</StackPanel>
<StackPanel Grid.Row="4" >
<TextBox Name="txtres" Height="30" Width="200"/>
</StackPanel>
<StackPanel Grid.Row="5">
<TabControl Margin="0,10,0,0">
<TabItem Header="Tab I" >
<StackPanel>
<TextBox Name="txt1" Width="250" Height="30"/>
<Button Name="btn1" Width="80" Height="30" Content="Display"/>
</StackPanel>
</TabItem>
</TabControl>
</StackPanel>
后面的代码
{
InitializeComponent();
}
private void btnclick_Click(object sender, RoutedEventArgs e)
{
{
if (txtuser.Text == "TEST" && psw.Password == "TEST")
{
txtres.Text = " You are logged in";
txtres.Foreground = Brushes.Green;
txtres.FontSize = 14;
MessageBox.Show("You are logged in");
}
else
{
txtres.Text = " You are not logged in";
txtres.Foreground = Brushes.Red;
txtres.FontSize = 14;
MessageBox.Show("You are not logged in");
}
}
}
private void btncancel_Click(object sender, RoutedEventArgs e)
{
txtuser.Text = "";
psw.Password = "";
}
private void btnclose_Click(object sender, RoutedEventArgs e)
{
Application.Current.Shutdown()
}
}
}
如果您在代码隐藏中有逻辑,您可以轻松访问 UI 元素的实例。
您可以为标签项设置名称:
<TabItem x:Name="LoginSuccessTab" Header="Tab I" >
然后登录失败时隐藏
private void btnclick_Click(object sender, RoutedEventArgs e)
{
{
if (txtuser.Text == "TEST" && psw.Password == "TEST")
{
txtres.Text = " You are logged in";
txtres.Foreground = Brushes.Green;
txtres.FontSize = 14;
MessageBox.Show("You are logged in");
LoginSuccessTab.Visibility = Visibility.Visible;
}
else
{
txtres.Text = " You are not logged in";
txtres.Foreground = Brushes.Red;
txtres.FontSize = 14;
MessageBox.Show("You are not logged in");
LoginSuccessTab.Visibility = Visibility.Collapsed;
}
}
}
我正在用 C# 编写程序。我正在尝试制作一个简单的登录程序。例如,当用户的详细信息正确时,则显示选项卡项的内容,如果不正确,则不显示选项卡项的内容。代码在
下 <Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="60"/>
<RowDefinition Height="60"/>
<RowDefinition Height="50"/>
<RowDefinition Height="30"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<StackPanel Grid.Row="1" Orientation="Horizontal">
<Label Name="lbluser" Content="User" Height="30" Width="50" />
<TextBox Name="txtuser" Width="180" Height="30"/>
</StackPanel>
<StackPanel Grid.Row="2" Orientation="Horizontal">
<Label Name="lblpass" Content="Password" Height="30"/>
<PasswordBox Name="psw" Height="30" Width="180"/>
</StackPanel>
<StackPanel Grid.Row="3" Orientation="Horizontal" HorizontalAlignment="Center">
<Button Name="btnclick" Content="Click" Width="80" Height="30" Click="btnclick_Click" />
<Button Name="btncancel" Content="Cancel" Width="80" Height="30" Margin="10,0,0,0" Click="btncancel_Click" />
<Button Name="btnclose" Content="Close" Width="80" Height="30" Margin="10,0,0,0" Click="btnclose_Click" />
</StackPanel>
<StackPanel Grid.Row="4" >
<TextBox Name="txtres" Height="30" Width="200"/>
</StackPanel>
<StackPanel Grid.Row="5">
<TabControl Margin="0,10,0,0">
<TabItem Header="Tab I" >
<StackPanel>
<TextBox Name="txt1" Width="250" Height="30"/>
<Button Name="btn1" Width="80" Height="30" Content="Display"/>
</StackPanel>
</TabItem>
</TabControl>
</StackPanel>
后面的代码
{
InitializeComponent();
}
private void btnclick_Click(object sender, RoutedEventArgs e)
{
{
if (txtuser.Text == "TEST" && psw.Password == "TEST")
{
txtres.Text = " You are logged in";
txtres.Foreground = Brushes.Green;
txtres.FontSize = 14;
MessageBox.Show("You are logged in");
}
else
{
txtres.Text = " You are not logged in";
txtres.Foreground = Brushes.Red;
txtres.FontSize = 14;
MessageBox.Show("You are not logged in");
}
}
}
private void btncancel_Click(object sender, RoutedEventArgs e)
{
txtuser.Text = "";
psw.Password = "";
}
private void btnclose_Click(object sender, RoutedEventArgs e)
{
Application.Current.Shutdown()
}
}
}
如果您在代码隐藏中有逻辑,您可以轻松访问 UI 元素的实例。
您可以为标签项设置名称:
<TabItem x:Name="LoginSuccessTab" Header="Tab I" >
然后登录失败时隐藏
private void btnclick_Click(object sender, RoutedEventArgs e)
{
{
if (txtuser.Text == "TEST" && psw.Password == "TEST")
{
txtres.Text = " You are logged in";
txtres.Foreground = Brushes.Green;
txtres.FontSize = 14;
MessageBox.Show("You are logged in");
LoginSuccessTab.Visibility = Visibility.Visible;
}
else
{
txtres.Text = " You are not logged in";
txtres.Foreground = Brushes.Red;
txtres.FontSize = 14;
MessageBox.Show("You are not logged in");
LoginSuccessTab.Visibility = Visibility.Collapsed;
}
}
}