如何让进度条的更新速度不够快？ [英] How can I make the progress bar update fast enough?
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问题描述
我用一个进度条来显示用户有多远沿着过程。它有17个步骤，它可以在任何地方从约5秒至两三分钟，这取决于天气（当然，数据库）
我有这个在XP没有问题，进度条了罚款，但在Vista中测试时，我发现，它已不再是这种情况。
例如：如果需要接近5秒，它的也许的消失，因为它完成之前，通过使1/3的方式。即使它的进步是在17 17，它并没有表现出来。我相信这是动画的，因为Vista对进度条和动画无法完成足够快。
有谁知道我怎么能解决这个？
下面是code：
这是更新进度条的一部分，等待是有进度条的形式。
INT进度= 1;
// 1现金收款项目
waiting.setProgress（进度，18，进步，现金收款项目）;
tblCashReceiptsApplyToTableAdapter1.Fill（rentalEaseDataSet1.tblCashReceiptsApplyTo）;
进度++;
// 2现金收入
waiting.setProgress（进步，现金收入）;
tblCashReceiptsTableAdapter1.Fill（rentalEaseDataSet1.tblCashReceipts）;
进度++;
// 3支票簿codeS
waiting.setProgress（进步，支票簿codeS）;
tblCheckbook codeTableAdapter1.Fill（rentalEaseDataSet1.tblCheckbook code）;
进度++;
// 4支票簿项
waiting.setProgress（进步，支票簿项）;
tblCheckbookEntryTableAdapter1.Fill（rentalEaseDataSet1.tblCheckbookEntry）;
进度++;
// 5支票簿
waiting.setProgress（进步，支票簿）;
tblCheckbookTableAdapter1.Fill（rentalEaseDataSet1.tblCheckbook）;
进度++;
// 6公司
waiting.setProgress（进步，公司）;
tblCompanyTableAdapter1.Fill（rentalEaseDataSet1.tblCompany）;
进度++;
// 7费用
waiting.setProgress（进步，费用）;
tblExpenseTableAdapter1.Fill（rentalEaseDataSet1.tblExpense）;
进度++;
// 8收入
waiting.setProgress（进步，收入）;
tblIncomeTableAdapter1.Fill（rentalEaseDataSet1.tblIncome）;
进度++;
// 9属性
waiting.setProgress（进步，属性）;
tblPropertyTableAdapter1.Fill（rentalEaseDataSet1.tblProperty）;
进度++;
// 10租住单位
waiting.setProgress（进度，租赁单位）;
tblRentalUnitTableAdapter1.Fill（rentalEaseDataSet1.tblRentalUnit）;
进度++;
// 11租户状态值
waiting.setProgress（进步，租客状态值）;
tblTenantStatusTableAdapter1.Fill（rentalEaseDataSet1.tblTenantStatus）;
进度++;
// 12租户
waiting.setProgress（进步，租客）;
tblTenantTableAdapter1.Fill（rentalEaseDataSet1.tblTenant）;
进度++;
// 13租户交易codeS
waiting.setProgress（进步，租客事务codeS）;
tblTenantTrans codeTableAdapter1.Fill（rentalEaseDataSet1.tblTenantTrans code）;
进度++;
// 14交易
waiting.setProgress（进步，交易）;
tblTransactionTableAdapter1.Fill（rentalEaseDataSet1.tblTransaction）;
进度++;
// 15供应商
waiting.setProgress（进步，卖方）;
tblVendorTableAdapter1.Fill（rentalEaseDataSet1.tblVendor）;
进度++;
// 16工作订单分类
waiting.setProgress（进步，工单类别）;
tblWorkOrderCategoryTableAdapter1.Fill（rentalEaseDataSet1.tblWorkOrderCategory）;
进度++;
// 17工作订单
waiting.setProgress（进步，工作单）;
tblWorkOrderTableAdapter1.Fill（rentalEaseDataSet1.tblWorkOrder）;
进度++;
// 18存储特效
waiting.setProgress（进步，存储过程）;
getAllCheckbookBalancesTableAdapter1.Fill（rentalEaseDataSet1.GetAllCheckbookBalances）;
getAllTenantBalancesTableAdapter1.Fill（rentalEaseDataSet1.GetAllTenantBalances）;
// getCheckbookBalanceTableAdapter1;
// getTenantBalanceTableAdapter1;
getTenantStatusID_CurrentTableAdapter1.Fill（rentalEaseDataSet1.GetTenantStatusID_Current）;
getTenantStatusID_FutureTableAdapter1.Fill（rentalEaseDataSet1.GetTenantStatusID_Future）;
getTenantStatusID_PastTableAdapter1.Fill（rentalEaseDataSet1.GetTenantStatusID_Past）;
selectVacantRentalUnitsByIDTableAdapter1.Fill（rentalEaseDataSet1.SelectVacantRentalUnitsByID）;
getRentBasedBalancesTableAdapter1.Fill（rentalEaseDataSet1.GetRentBasedBalances）;
getAgingBalanceTableAdapter2.Fill（rentalEaseDataSet1.GetAgingBalance）;
waiting.Close（）;
下面是等待的形式：
公共部分类PleaseWaitDialog：表格{
公共PleaseWaitDialog（）{
CheckForIllegalCrossThreadCalls = FALSE;
的InitializeComponent（）;
}
公共无效setProgress（INT当前，INT最大，INT分钟，串loadItem）{
Debug.Assert的（分钟＆lt; =最大，最小是大于最大！）;
Debug.Assert的（当前＆GT; =分钟，目前的进展是小于最小进展！）;
Debug.Assert的（电流I =最大，的进展是大于最大进步！）;
prgLoad.Minimum =分钟;
prgLoad.Maximum = MAX;
prgLoad.Value =电流;
lblLoadItem.Text = loadItem;
}
公共无效setProgress（INT当前，串loadItem）{
this.setProgress（目前，prgLoad.Maximum，prgLoad.Minimum，loadItem）;
}
}
解决方案
尝试调用调用 waiting.setProgess（）的方法，因为等待似乎生活在另一个线程，这将是一个的经典跨线程调用（编译器警告您，如果你让他）。
由于 Control.Invoke 是一个有点笨拙用我通常使用的扩展方法，让我通过一个lambda EX pression：
waiting.ThreadSafeInvoke（（）=＆GT; waiting.setProgress（...））;
//也看到http://stackoverflow.com/questions/788828/invoke-from-different-thread
公共静态类ControlExtension
{
公共静态无效ThreadSafeInvoke（该控制的控制，MethodInvoker法）
{
如果（控制！= NULL）
{
如果（control.InvokeRequired）
{
control.Invoke（法）;
}
其他
{
method.Invoke（）;
}
}
}
}
I'm using a progress bar to show the user how far along the process is. It has 17 steps, and it can take anywhere from ~5 seconds to two or three minutes depending on the weather (well, database)
I had no problem with this in XP, the progress bar went fine, but when testing it in vista I found that it is no longer the case.
For example: if it takes closer to 5 seconds, it might make it a 1/3 of the way through before disappearing because it's completed. Even though it's progress is at 17 of 17, it doesn't show it. I believe this is because of the animation Vista imposes on progress bars and the animation cannot finish fast enough.
Does anyone know how I can correct this?
Here is the code:
This is the part that updates the progress bar, waiting is the form that has the progress bar.
int progress = 1;
//1 Cash Receipt Items
waiting.setProgress(progress, 18, progress, "Cash Receipt Items");
tblCashReceiptsApplyToTableAdapter1.Fill(rentalEaseDataSet1.tblCashReceiptsApplyTo);
progress++;
//2 Cash Receipts
waiting.setProgress(progress, "Cash Receipts");
tblCashReceiptsTableAdapter1.Fill(rentalEaseDataSet1.tblCashReceipts);
progress++;
//3 Checkbook Codes
waiting.setProgress(progress, "Checkbook Codes");
tblCheckbookCodeTableAdapter1.Fill(rentalEaseDataSet1.tblCheckbookCode);
progress++;
//4 Checkbook Entries
waiting.setProgress(progress, "Checkbook Entries");
tblCheckbookEntryTableAdapter1.Fill(rentalEaseDataSet1.tblCheckbookEntry);
progress++;
//5 Checkbooks
waiting.setProgress(progress, "Checkbooks");
tblCheckbookTableAdapter1.Fill(rentalEaseDataSet1.tblCheckbook);
progress++;
//6 Companies
waiting.setProgress(progress, "Companies");
tblCompanyTableAdapter1.Fill(rentalEaseDataSet1.tblCompany);
progress++;
//7 Expenses
waiting.setProgress(progress, "Expenses");
tblExpenseTableAdapter1.Fill(rentalEaseDataSet1.tblExpense);
progress++;
//8 Incomes
waiting.setProgress(progress, "Incomes");
tblIncomeTableAdapter1.Fill(rentalEaseDataSet1.tblIncome);
progress++;
//9 Properties
waiting.setProgress(progress, "Properties");
tblPropertyTableAdapter1.Fill(rentalEaseDataSet1.tblProperty);
progress++;
//10 Rental Units
waiting.setProgress(progress, "Rental Units");
tblRentalUnitTableAdapter1.Fill(rentalEaseDataSet1.tblRentalUnit);
progress++;
//11 Tenant Status Values
waiting.setProgress(progress, "Tenant Status Values");
tblTenantStatusTableAdapter1.Fill(rentalEaseDataSet1.tblTenantStatus);
progress++;
//12 Tenants
waiting.setProgress(progress, "Tenants");
tblTenantTableAdapter1.Fill(rentalEaseDataSet1.tblTenant);
progress++;
//13 Tenant Transaction Codes
waiting.setProgress(progress, "Tenant Transaction Codes");
tblTenantTransCodeTableAdapter1.Fill(rentalEaseDataSet1.tblTenantTransCode);
progress++;
//14 Transactions
waiting.setProgress(progress, "Transactions");
tblTransactionTableAdapter1.Fill(rentalEaseDataSet1.tblTransaction);
progress++;
//15 Vendors
waiting.setProgress(progress, "Vendors");
tblVendorTableAdapter1.Fill(rentalEaseDataSet1.tblVendor);
progress++;
//16 Work Order Categories
waiting.setProgress(progress, "Work Order Categories");
tblWorkOrderCategoryTableAdapter1.Fill(rentalEaseDataSet1.tblWorkOrderCategory);
progress++;
//17 Work Orders
waiting.setProgress(progress, "Work Orders");
tblWorkOrderTableAdapter1.Fill(rentalEaseDataSet1.tblWorkOrder);
progress++;
//18 Stored procs
waiting.setProgress(progress, "Stored Procedures");
getAllCheckbookBalancesTableAdapter1.Fill(rentalEaseDataSet1.GetAllCheckbookBalances);
getAllTenantBalancesTableAdapter1.Fill(rentalEaseDataSet1.GetAllTenantBalances);
//getCheckbookBalanceTableAdapter1;
//getTenantBalanceTableAdapter1;
getTenantStatusID_CurrentTableAdapter1.Fill(rentalEaseDataSet1.GetTenantStatusID_Current);
getTenantStatusID_FutureTableAdapter1.Fill(rentalEaseDataSet1.GetTenantStatusID_Future);
getTenantStatusID_PastTableAdapter1.Fill(rentalEaseDataSet1.GetTenantStatusID_Past);
selectVacantRentalUnitsByIDTableAdapter1.Fill(rentalEaseDataSet1.SelectVacantRentalUnitsByID);
getRentBasedBalancesTableAdapter1.Fill(rentalEaseDataSet1.GetRentBasedBalances);
getAgingBalanceTableAdapter2.Fill(rentalEaseDataSet1.GetAgingBalance);
waiting.Close();
Here is the waiting form:
public partial class PleaseWaitDialog : Form {
public PleaseWaitDialog() {
CheckForIllegalCrossThreadCalls = false;
InitializeComponent();
}
public void setProgress(int current, int max, int min, string loadItem) {
Debug.Assert(min <= max, "Minimum is bigger than the maximum!");
Debug.Assert(current >= min, "The current progress is less than the minimum progress!");
Debug.Assert(current <= max, "The progress is greater than the maximum progress!");
prgLoad.Minimum = min;
prgLoad.Maximum = max;
prgLoad.Value = current;
lblLoadItem.Text = loadItem;
}
public void setProgress(int current, string loadItem) {
this.setProgress(current, prgLoad.Maximum, prgLoad.Minimum, loadItem);
}
}
解决方案
Try invoking the call to the waiting.setProgess() method since waiting seems to live in another thread and this would be a classic cross thread call (which the compiler warns you about if you let him).
Since Control.Invoke is a bit clumsy to use I usually use an extension method that allows me to pass a lambda expression:
waiting.ThreadSafeInvoke(() => waiting.setProgress(...));
.
// also see http://stackoverflow.com/questions/788828/invoke-from-different-thread
public static class ControlExtension
{
public static void ThreadSafeInvoke(this Control control, MethodInvoker method)
{
if (control != null)
{
if (control.InvokeRequired)
{
control.Invoke(method);
}
else
{
method.Invoke();
}
}
}
}
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