調(diào)用線程無法訪問此對象，因為其他線程擁有該對象。我的代碼如下public CountryStandards(){
InitializeComponent();
try
{
FillPageControls();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Country Standards", MessageBoxButton.OK, MessageBoxImage.Error);
}}/// <summary>/// Fills the page controls./// </summary>private void FillPageControls(){
popUpProgressBar.IsOpen = true;
lblProgress.Content = "Loading. Please wait...";
progress.IsIndeterminate = true;
worker = new BackgroundWorker();
worker.DoWork += new System.ComponentModel.DoWorkEventHandler(worker_DoWork);
worker.ProgressChanged += new System.ComponentModel.ProgressChangedEventHandler(worker_ProgressChanged);
worker.WorkerReportsProgress = true;
worker.WorkerSupportsCancellation = true;
worker.RunWorkerCompleted += new System.ComponentModel.RunWorkerCompletedEventHandler(worker_RunWorkerCompleted);
worker.RunWorkerAsync(); }private void worker_DoWork(object sender,
System.ComponentModel.DoWorkEventArgs e){
GetGridData(null, 0); // filling grid}private void worker_ProgressChanged(object sender,
System.ComponentModel.ProgressChangedEventArgs e){
progress.Value = e.ProgressPercentage;}private void worker_RunWorkerCompleted(object sender,
System.ComponentModel.RunWorkerCompletedEventArgs e){
worker = null;
popUpProgressBar.IsOpen = false;
//filling Region dropdown
Standards.UDMCountryStandards objUDMCountryStandards = new Standards.UDMCountryStandards();
objUDMCountryStandards.Operation = "SELECT_REGION";
DataSet dsRegionStandards = objStandardsBusinessLayer.GetCountryStandards(objUDMCountryStandards);
if (!StandardsDefault.IsNullOrEmptyDataTable(dsRegionStandards, 0))
StandardsDefault.FillComboBox(cmbRegion, dsRegionStandards.Tables[0], "Region", "RegionId");步驟objUDMCountryStandards.Country = txtSearchCountry.Text.Trim() != string.Empty ? txtSearchCountry.Text : null;在GET網(wǎng)格中，數(shù)據(jù)拋出異常。調(diào)用線程無法訪問此對象，因為其他線程擁有該對象。這里怎么了？
3 回答
明月笑刀無情
TA貢獻(xiàn)1828條經(jīng)驗 獲得超4個贊
Dispatcher.Invoke
// Force WPF to render UI changes immediately with this magic line of code...Dispatcher.Invoke(new Action(() => { }),
.DispatcherPriority.ContextIdle);WebClient
慕姐8265434
TA貢獻(xiàn)1813條經(jīng)驗 獲得超2個贊
System.Windows.Threading.Dispatcher.CurrentDispatcher.Invoke(). Invoke()DispatcherSystem.Windows.Threading.Dispatcher.CurrentDispatcherYourControl.Dispatcher.Invoke()
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