我正在试图弄清楚收藏夹栏在IE/Firefox等中的控制方式.基本上你可以直观地存储书签,移动,删除.
我尝试用ToolBar做一些事情,虽然我可以添加按钮并让它们像我想的那样工作,但删除和重新排列它们是有问题的.我也尝试过listviews,但让它们正确显示却很难实现.也许像大图标视图,没有图标.
我只是在寻找一些人们可以将导航页面标记为回到他们之前看到的东西的东西.
编辑:
我想我甚至都不关心重新安排那么多.我只想弄清楚如何
我试过这个测试:
<ListView Grid.Row="1" Name="ListView1">
<WrapPanel>
<WrapPanel.ContextMenu>
<ContextMenu>
<MenuItem Name="mnuDelete" Header="Delete" />
</ContextMenu>
</WrapPanel.ContextMenu>
<Button Name="AddSite">+</Button>
<ListViewItem Content="Test 1" />
<ListViewItem Content="Test 2" />
</WrapPanel>
</ListView>
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但我甚至无法选择任何一个listviewitems,更不用说点击它们了.如果我右键单击一个,它不会告诉我在上下文菜单事件处理程序中单击了哪一个.
这令人沮丧,因为在WinForms中我已经完成了这项工作.我不能等到我捡到足够的东西才能让WPF开始点击.我觉得我再次从VB6迁移到VB.Net,但更重要的是.
我正在使用PHP从数据库查询创建CSV文件.我运行查询,设置标题,并在Firefox中加载页面,文件提示下载并在excel中打开,就像它应该的那样.当我在IE中尝试它时,我收到一个错误说不
知道可以做些什么来解决这个问题.Internet Explorer cannot download ReportPrint.php from www.website.com.
Internet Explorer was not able to open this Internet site. The requested site is either unavailable or cannot be found. Please try again later.
header('Content-Description: File Transfer');
header("Content-Type: application/csv") ;
header("Content-Disposition: attachment; filename=Report.csv");
header("Pragma: no-cache");
header("Expires: 0");
echo "record1,record2,record3\n";
Run Code Online (Sandbox Code Playgroud) 我想在我的WPF项目中包含一个系统托盘图标,并找到了这个资源:
http://www.hardcodet.net/projects/wpf-notifyicon
看起来它会很漂亮,但它是为C#编写的,我正在使用VB.net进行这个项目.我下载了他的项目并将notifyicon构建为DLL,然后添加为我的项目的参考.
它引发了一个错误:
无法发出汇编:引用的汇编'Hardcodet.Wpf.TaskbarNotification'没有强名称
所以我想弄清楚最好的方法.我是否需要强名,或者有更好的方法吗?
它似乎在我的开发机器或Windows XP测试机器上运行良好,但我在Windows 7测试机器上遇到了问题.
之后,我收到正常的崩溃错误:
************** Exception Text **************
System.InvalidOperationException: An error occurred creating the form. See
Exception.InnerException for details. The error is: The type initializer for
'CrystalDecisions.CrystalReports.Engine.ReportDocument' threw an exception. --->
System.TypeInitializationException: The type initializer for
'CrystalDecisions.CrystalReports.Engine.ReportDocument' threw an exception. --->
CrystalDecisions.CrystalReports.Engine.LoadSaveReportException: An error has occurred while
attempting to load the Crystal Reports runtime.
Either the Crystal Reports registry key permissions are insufficient or the Crystal Reports runtime is not installed correctly.
Please install the appropriate Crystal Reports redistributable (CRRedist*.msi) …
Run Code Online (Sandbox Code Playgroud) 我正在尝试使用UIAlertController弹出警报,但我一直收到此错误:
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present a nil modal view controller on target <States: 0x17557b90>.'
if([InAppPurchaseVerifier hasSubscription]){
NSUInteger row = [indexPath row];
NSDictionary *myDict = [[NSDictionary alloc] initWithDictionary:[self.fullList objectAtIndex:row]];
NSString *state = [[NSString alloc] initWithString: [myDict objectForKey:@"0"]];
NSString *stateDetails = [[NSString alloc] initWithString: [myDict objectForKey:@"1"]];
OfficeInfo *anotherViewController = [[OfficeInfo alloc] initWithNibName:@"OfficeInfo" bundle:nil];
anotherViewController.stateName = state;
anotherViewController.stateDetails = stateDetails;
[state release];
[stateDetails release];
[self.navigationController pushViewController:anotherViewController animated:YES];
[anotherViewController release];
}else{
UIAlertController* alert = [[UIAlertController …
Run Code Online (Sandbox Code Playgroud) 我想知道是否可以使用视图从表中获取前5行.我发现Crystal报告似乎没有内置任何东西来做这件事,或者我会在那里做.
当我查询视图时Select * from qryTranHistory
,它返回前5个项目,但是如果我尝试选择特定类型Select * from qryTranHistory Where tID = 45
则不返回任何内容,因为前5个中通常没有tID = 45.
是否有可能做到这一点?
可以在Crystal Reports的子报表中完成吗?
我的程序中有一个搜索功能,它使用后台工作程序来获得结果.Progress changed事件用于使用新项更新列表视图.
Private Sub SearchWorker_ProgressChanged(ByVal sender As Object, ByVal e As System.ComponentModel.ProgressChangedEventArgs) Handles SearchWorker.ProgressChanged
Dim itmX As ListViewItem
Dim tmpCustomer As CustomerItem
If e.UserState.ToString = "New" Then
lstResults.Items.Clear()
Else
Try
tmpCustomer = e.UserState
itmX = lstResults.Items.Add(tmpCustomer.CustomerName) ' <-- Error here
itmX.Tag = tmpCustomer.CustomerID
itmX.Name = tmpCustomer.CustomerID
itmX.SubItems.Add(tmpCustomer.City)
itmX.SubItems.Add(tmpCustomer.State)
itmX.SubItems.Add(tmpCustomer.Zip)
Catch ex As Exception
MsgBox(ex.Message)
End Try
End If
progBar.Value = e.ProgressPercentage
Application.DoEvents()
End Sub
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我得到了这个错误
An unhandled exception of type 'System.StackOverflowException' occurred in System.Windows.Forms.dll
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我试过这个,但它并没有什么不同
Private Sub SearchWorker_ProgressChanged(ByVal sender As …
Run Code Online (Sandbox Code Playgroud) 我正在开发一个使用Azure为它的数据库的程序.它工作得很好,除了我必须授权我访问它的每个IP地址.所以,如果我去朋友家,我必须授权IP,如果我去咖啡馆,我必须授权IP ...
我希望有一种方法来授权程序的连接,无论它来自哪个IP.或者,更糟糕的情况是,关闭那个安全措施.
我设置了一个 Microsoft SQL 数据同步代理作业,用于将本地服务器同步到 Azure。它运行得很好,然后我们在本地进行了一些更新,但它没有从 Azure 中删除已删除的行,现在同步失败并出现警告:
\n\nSync completed with warnings in 708.02 seconds. \nUpload: 4646 changes applied/155 failed \nDownload: 680 changes applied/0 failedData Sync will stop synchronizing changes for this sync group member in -60 days if the failures are not resolved. \nUpload - errors for first 5 rows that failed to apply:Error #1: SqlException Error Code: -2146232060 - \nSqlError Number:515, Message: Cannot insert the value NULL into column 'ModelID', table 'dbo.ModelYears'; column does not allow nulls. INSERT …
Run Code Online (Sandbox Code Playgroud) 为 Xcode 7 更新旧项目,但我收到更新前未收到的错误。
.h 文件:
@interface TableRowViewController : UITableViewController {
UIImage *rowImage;
NSString *nibName;
}
@property (nonatomic, strong) UIImage *rowImage;
@property (nonatomic, strong) NSString *nibName; // <-- error here
@end
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抛出错误:
属性“nibName”上的“copy”属性与从“UIViewController”继承的属性不匹配
.m 文件:
#import "TableRowViewController.h"
@implementation TableRowViewController
@synthesize rowImage;
@synthesize nibName;
@end
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