I have a handler for the TextBox's PreviewLostKeyboardFocus event. It fires when I leave the TextBox using the keyboard (Tab key) or the mouse (by clicking on another TextBox on the form). The handler takes a KeyboardFocusChangedEventArgs , which has a property named KeyboardDevice , which isn't null in either scenario (I was hoping to find null here when using the mouse). Question:
我有一个TextBox的PreviewLostKeyboardFocus事件处理程序。 当我使用键盘(Tab键)或鼠标(通过单击表单上的另一个TextBox)离开文本框时它会触发。 该处理程序需要一个KeyboardFocusChangedEventArgs ,它有一个名为KeyboardDevice的属性,在任何一种情况下都不为空(我希望在使用鼠标时可以在这里找到null )。 问:如何判断用户是使用键盘还是鼠标离开WPF文本框? e.KeyboardDevice.GetKeyStates(Key.Tab) (其中e是
I'm trying to bind SelectedItem in a ListView to the property SelectedSection in the viewmodel. I'm getting the following error: "Invalid binding path 'ViewModel.SelectedSection' : Cannot bind type 'Model.Section' to 'System.Object' without a converter". I'm currently binding the ListView's ItemSource to a list in the CurrentProject property. I
我试图将ListView中的SelectedItem绑定到viewmodel中的SelectedSection属性。 我收到以下错误:“无效的绑定路径'ViewModel.SelectedSection':无法将类型'Model.Section'绑定到'System.Object'而没有转换器”。 我目前将ListView的ItemSource绑定到CurrentProject属性中的列表。 我尝试制作一个转换器,但我不太确定我想转换的方式和方式。 当我尝试使用SelectedValue和SelectedValuePath获取需要的
Is there any easy way to bind to the ToString() method in a DataTemplate? I would expect the Text property of a TextBlock to use ToString() by default for its Text property, but that does not happen. So any easy way to do this: <DataTemplate x:Key="myTemplate"> <TextBlock Text="{Binding ToString()}"/> <DataTemplate> You can use Text="{Binding}" . The ToString(
有没有简单的方法绑定到DataTemplate中的ToString()方法? 我希望TextBlock的Text属性默认使用ToString()作为其Text属性,但这不会发生。 所以任何简单的方法来做到这一点: <DataTemplate x:Key="myTemplate"> <TextBlock Text="{Binding ToString()}"/> <DataTemplate> 你可以使用Text="{Binding}" 。 ToString()方法是隐式调用的。 你可以使用一个转换器。 喜欢这个: public cl
I'm developing an Unity app which needs to dynamically load native libraries from outside where the app is installed, for some reason I cannot set the absolute path to DllImport before compiling (such as read the library path in a .txt at runtime and load it), and I don't want to use platform specific API such as LoadLibrary() on Windows or dlopen on Linux because it's inconvenient.
我正在开发一个Unity应用程序,它需要从安装该应用程序的外部动态加载本机库,出于某种原因,我无法在编译之前设置绝对路径到DllImport (例如在运行时读取.txt中的库路径并加载它),我不想使用特定于平台的API,例如Windows上的LoadLibrary()或Linux上的dlopen ,因为这很不方便。 我一直在挣扎好几天。 我知道搜索路径可以通过Windows的SetDllDirectory()从这篇文章进行调整,并且在.NET Framework应用程序上进行测试时,
I am working on an application where users can develop their own plugins as dll files. They need to put these dll files to a specific path so my application(C++) can load them and run. The problem is, when user develops a dll file depends another dll file and put both files to my dll path, my application can't find second dll file. Ex: DllA(C++) depends DllB(C#) my app loads DllA but ca
我正在开发一个应用程序,用户可以将自己的插件作为dll文件开发。 他们需要将这些dll文件放到特定路径中,以便我的应用程序(C ++)可以加载它们并运行。 问题是,当用户开发一个DLL文件取决于另一个DLL文件,并把这两个文件到我的DLL路径,我的应用程序无法找到第二个DLL文件。 例如: DllA(C ++)依赖于DllB(C#)我的应用程序加载DllA但无法找到DllB并失败。 如果用户将DllB放入应用程序二进制路径并将DllA放入特定
I've done an extension for Thunderbird. It calls (via js-ctypes) a C++ DLL I've written which in turn references other DLLs which are assemblies written in C# (existing code). If all the files are in the same directory as the Thunderbird executable, it all works fine. I've now moved my own files to a directory I've made to keep them distinct from the Thunderbird files. The di
我为Thunderbird做了一个扩展。 它调用(通过js-ctypes)我编写的C ++ DLL,然后引用其他DLL,它们是用C#(现有代码)编写的程序集。 如果所有文件与Thunderbird可执行文件位于同一目录中,则一切正常。 我现在已将我自己的文件移至我制作的目录,以使它们不同于Thunderbird文件。 该目录在路径中,所以我的C ++ DLL在调用时被加载。 但是,当它开始寻找引用的程序集时,它会失败。 Procmon显示它只在Thunderbird运行的
I built an application in c# vs2005 .net . Everything works fine when i run the application in win 32 bit, But when running the application in win 64 it crashes while trying to call the pinvoke interlockedexchange(which is within the kernel32.dll) function . This is the exception : unable to find an entry point named 'interlockedexchange' I didnt find the interlockedexchange functio
我用c#vs2005.net构建了一个应用程序。 当我在win 32位运行应用程序时,一切正常,但是当在win 64中运行应用程序时,它会在尝试调用pinvoke interlockedexchange(kernel32.dll内)函数时崩溃。 这是例外:无法找到名为'interlockedexchange'的入口点 我没有在system32目录下的kernel32.dll中找到interlockedexchange函数,但它在syswow64目录下(在kernel32.dll中)找到。 我猜测.net运行时被配置为system32目
I have an existing app which P/Invokes to a DLL residing in the same directory as the app itself. Now (due to the fact that Canon produces one of the crappiest API's around) I need to support two versions of this API and determine at run-time which one I should use (old or new). Since the DLLs have the same name (the first one loads other DLLs with same names so just renaming the first one
我有一个现有的应用程序,它将P /调用到与应用程序本身位于同一目录中的DLL。 现在(由于佳能产生了最糟糕的API之一),我需要支持这个API的两个版本,并在运行时确定我应该使用哪一个(旧的或新的)。 由于DLL具有相同的名称(第一个加载其他DLL的名称相同,所以只是重命名第一个DLL不会帮助我),所以我必须将它们保存在不同的目录中。 因此,我的问题:我有什么选择来控制DllImport声明中给出的DLL的目录使用? 我想我
I have a SharePoint DLL that does some licensing things and as part of the code it uses an external C++ DLL to get the serial number of the hardisk. When I run this application on Windows Server 2003 it works fine, but on Windows Server 2008 the whole site (loaded on load) crashes and resets continually. This is not Windows Server 2008 R2 and is the same in 64 or 32 bits. If I put a Debugger
我有一个SharePoint DLL,它执行一些许可事务,并且作为代码的一部分,它使用外部C ++ DLL来获取硬盘的序列号。 当我在Windows Server 2003上运行此应用程序时,它工作正常,但在Windows Server 2008上,整个站点(加载时加载)会不断崩溃并重置。 这不是Windows Server 2008 R2,并且在64或32位中是相同的。 如果我在DLL执行之前放置了一个Debugger.Break ,我会看到代码到达中断点,然后再也不会再回到DLL中。 我确实从
[DllImport("DoSomething.dll", EntryPoint = "something_dump", SetLastError = true)] private static extern void something_dump(IntPtr dumper); When I run this DLLImport on XP machines it works fine but on vista I recieve the exception: Unable to load DLL 'DoSomething.dll': The specified module could not be found. (Exception from HRESULT: 0x8007007E) On both machin
[DllImport(“DoSomething.dll”,EntryPoint =“something_dump”,SetLastError = true)] private static extern void something_dump(IntPtr dumper); 当我在XP机器上运行此DLLImport时,它工作正常,但在Vista上我收到异常: 无法加载DLL'DoSomething.dll':无法找到指定的模块。 (来自HRESULT的异常:0x8007007E) 在位于Windows / System32目录的两台机器上,但由于某种原因,Vista不会加载它。 当我完