是否可以更改或修改控件模板的特定部分,而无需在xaml中重新创建控件的整个控件模板?
例如,我试图摆脱文本框的边框,因此我可以将带有圆角的基本搜索框放在一起(下面的示例xaml)。将borderthickness设置为0可以正常工作,直到您将鼠标悬停在文本框上并且他们添加到控件中的伪边框闪烁。如果我查看文本框的controltemplate,我甚至可以看到视觉状态已命名,但无法想到如何禁用它。
如果不覆盖TextBox的控件模板,我如何停止Visual State Manager在TextBox上触发鼠标效果?
<Border Background="White" CornerRadius="10" VerticalAlignment="Center" HorizontalAlignment="Center" BorderThickness="3" BorderBrush="#88000000">
<Grid VerticalAlignment="Center" HorizontalAlignment="Center" Width="200" Margin="5,0,0,0">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="16" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Path Height="13" Width="14" Stretch="Fill" Stroke="#FF000000" StrokeThickness="2" Data="M9.5,5 C9.5,7.4852815 7.4852815,9.5 5,9.5 C2.5147185,9.5 0.5,7.4852815 0.5,5 C0.5,2.5147185 2.5147185,0.5 5,0.5 C7.4852815,0.5 9.5,2.5147185 9.5,5 z M8.5,8.4999971 L13.5,12.499997" />
<TextBox GotFocus="TextBox_GotFocus" Background="Transparent" Grid.Column="1" BorderThickness="0" Text="I am searchtext" Margin="5,0,5,0" HorizontalAlignment="Stretch" />
</Grid>
</Border>
答案 0 :(得分:5)
通过继承控件并覆盖OnApplyTemplate,我找到了一种方法。它并不理想,但我认为它比复制整个控件模板更好。以下是创建无边框文本框的示例,通过始终清除故事板,实际上禁用鼠标而不是可视状态:
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media.Animation;
namespace SilverlightTestApplication
{
public class BorderlessTextBox : TextBox
{
public BorderlessTextBox()
{
BorderThickness = new System.Windows.Thickness(0);
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
//Get the mouse over animation in the control template
var MouseOverVisualState = GetTemplateChild("MouseOver") as VisualState;
if (MouseOverVisualState == null)
return;
//get rid of the storyboard it uses, so the mouse over does nothing
MouseOverVisualState.Storyboard = null;
}
}
}
答案 1 :(得分:2)
自从我使用XAML以来已经有一段时间了,但不,我不相信你只能修改一块模板。
但是,如果您有IDE,则可以创建当前应用模板的副本,只需修改所需的部分,其余部分保留原样。请参阅this link.
的“如何编辑”部分答案 2 :(得分:0)
使用XAML阅读器检索每个控件的默认模板,然后复制/粘贴并修改您想要的内容...不是很干净但我认为这是唯一的方法(我正在搜索如何检索此默认模板)
答案 3 :(得分:0)
在WPF中,不确定silverlight这里有一段代码来检索Aero模板,您可以尝试复制/粘贴并更改您想要的内容:
public Window1()
{
InitializeComponent();
using(FileStream fs = new FileStream("C:/TextBoxTemplate.xaml", FileMode.Create))
{
var res = LoadThemeDictionary(typeof(TextBox), "Aero", "NormalColor");
var buttonRes = res[typeof(TextBox)];
XamlWriter.Save(buttonRes, fs);
}
}
public static ResourceDictionary LoadThemeDictionary(Type t,
string themeName, string colorScheme)
{
Assembly controlAssembly = t.Assembly;
AssemblyName themeAssemblyName = controlAssembly.GetName();
object[] attrs = controlAssembly.GetCustomAttributes(
typeof(ThemeInfoAttribute), false);
if(attrs.Length > 0)
{
ThemeInfoAttribute ti = (ThemeInfoAttribute)attrs[0];
if(ti.ThemeDictionaryLocation ==
ResourceDictionaryLocation.None)
{
// There are no theme-specific resources.
return null;
}
if(ti.ThemeDictionaryLocation ==
ResourceDictionaryLocation.ExternalAssembly)
{
themeAssemblyName.Name += "." + themeName;
}
}
string relativePackUriForResources = "/" +
themeAssemblyName.FullName +
";component/themes/" +
themeName + "." +
colorScheme + ".xaml";
Uri resourceLocater = new System.Uri(
relativePackUriForResources, System.UriKind.Relative);
return Application.LoadComponent(resourceLocater)
as ResourceDictionary;
}
我从未使用Silverlight,但我认为将此模板改编为Silverlight并不需要做很多事情。