[英]Excel button is not disabled even when IsEnabled property is set to false
單擊按鈕時,我希望禁用單擊的按鈕,並在執行進程后重新啟用它。
雖然看起來很簡單,但出於某種原因,整個過程成功執行但按鈕並未禁用。 它在特定情況下被禁用,而不是在按鈕開始時被禁用。
下面是按鈕的 XAML 代碼
<Button
x:Name="PreviewReportButton"
Click="PreviewExcelReportButton_Click"
Background="{StaticResource ExportExcelButtonColor}"
BorderBrush="{StaticResource ExportExcelButtonColor}"
Focusable="False"
IsEnabled="False"
Width="80"
Height="Auto"
Margin="450,0,0,0"
FontSize="9"
FontWeight="DemiBold"
HorizontalAlignment="Left"
VerticalAlignment="Center"
Grid.Column="3"
Grid.Row="5"
Cursor="Hand"
VerticalContentAlignment="Center"
HorizontalContentAlignment="Center">
<TextBlock TextAlignment="Center">Button 1</TextBlock>
</Button>
c# VS 2019 中的 .cs 文件代碼
private void PreviewExcelReportButton_Click(object sender, RoutedEventArgs e)
{
var btn_excel = (Button)sender;
btn_excel.IsEnabled = false;
//PreviewReportButton.IsEnabled = false; This is the same button as btn_excel (the button I want to click)
Debug.WriteLine("Button must be disabled");
try
{
//Check if file is open
int IsMacroFileOpen = CheckFileIsOpen($@"{path}file_1.xlsm");
int IsReportFileOpen = CheckFileIsOpen($@"{path}file_2.xlsm");
int IsXLSXFileOpen = CheckFileIsOpen($@"{path}file_3.xlsx");
Debug.WriteLine(IsMacroFileOpen);
Debug.WriteLine(IsReportFileOpen);
Debug.WriteLine(IsXLSXFileOpen);
if (new[] { 1, 2 }.Contains(IsMacroFileOpen) || new[] { 1, 2 }.Contains(IsReportFileOpen) || new[] { 1, 2 }.Contains(IsXLSXFileOpen))
{
btn_excel.IsEnabled = true;
return;
}
Mouse.OverrideCursor = Cursors.Wait;
//Step 1: Create copy of standard report file
CreateCopyReportServerNameDB($@"{path}file_1.xlsm");
//Step 2: Run macro
ExecuteExcelMacro($@"{path}file_2.xlsm");
//Step 3: Open a copy of the xlsx updated file
//Approach 1
Microsoft.Office.Interop.Excel.Application ExcelApp = new Microsoft.Office.Interop.Excel.Application();
ExcelApp.DisplayAlerts = false;
ExcelApp.Visible = true;
Microsoft.Office.Interop.Excel.Workbook ExcelWorkBook = ExcelApp.Workbooks.Add($"{path}file_3.xlsx");
}
catch (Exception)
{
this.Effect = new BlurEffect();
bool? Result = new CustomMessageBox($"Unable to execute Excel button.\nPlease contact application support", "Error produced", MessageType.Error, MessageButtons.Ok).ShowDialog();
if (Result.Value)
{
this.Effect = null;
return;
}
else
{
this.Effect = null;
return;
}
}
finally
{
Mouse.OverrideCursor = null;
btn.IsEnabled = true;
}
}
不要太關注每個方法(CreateCopyReportServerNameDB、ExecuteExcelMacro)的作用,因為它與問題無關。 整個功能都有效。 不起作用的是我的代碼頂部的按鈕禁用。 當我單擊按鈕時,由於我使用了Mouse.OverrideCursor = Cursors.Wait;
因此 Cursor 更改為Wait Mouse.OverrideCursor = Cursors.Wait;
. 奇怪的是,該按鈕僅在CheckFileIsOpen
方法CheckFileIsOpen
的文件打開時才被禁用。 如果沒有打開文件,則永遠不會禁用該按鈕。 而且我確信我只在班級頂部禁用按鈕,並且只在最后啟用它。
您還會注意到,如果IsEnabled = false;
,我已經放置了一個Debug.Writeline
來寫入IsEnabled = false;
成功執行,實際上該行被寫入為輸出。 盡管按鈕永遠不會被禁用,除非文件打開並被方法CheckFileIsOpen
捕獲。
抱歉,我已經到了為這樣一個“虛擬”思考發布問題的地步,因為對我來說這很明顯。 但我不明白為什么按鈕的 IsEnabled 會發生這種情況。 如果這很簡單,請道歉,但我無法弄清楚發生了什么。
問題好像是我執行第二種方法的時候ExecuteExcelMacro
這個方法的代碼
public void ExecuteExcelMacro(string sourceFile)
{
var destinationFile = @"file_1";
Microsoft.Office.Interop.Excel.Application ExcelApp = new Microsoft.Office.Interop.Excel.Application();
ExcelWorkBook = ExcelApp.Workbooks.Open(sourceFile);
string macro = "ThisWorkbook.Run_Code";
try
{
ExcelApp.Run(macro);
Debug.WriteLine("Macro: " + macro + " executed successfully");
}
catch (Exception)
{
this.Effect = new BlurEffect();
bool? Result = new CustomMessageBox($"Unable to Run Macro: {macro}", "Cannot execute Macro", MessageType.Error, MessageButtons.Ok).ShowDialog();
if (Result.Value)
{
this.Effect = null;
return;
}
else
{
this.Effect = null;
return;
}
//Debug.WriteLine("Unable to Run Macro: " + macro + " Exception: " + ex.Message);
}
ExcelApp.DisplayAlerts = false;
ExcelApp.Visible = false;
ExcelWorkBook.SaveAs($@"{path}{destinationFile}", Microsoft.Office.Interop.Excel.XlFileFormat.xlOpenXMLWorkbook, Type.Missing);
ExcelWorkBook.Close(0);
ExcelApp.Quit();
if (ExcelWorkBook != null) { System.Runtime.InteropServices.Marshal.ReleaseComObject(ExcelWorkBook); }
if (ExcelApp != null) { System.Runtime.InteropServices.Marshal.ReleaseComObject(ExcelApp); }
}
在 ExecuteExcelMacro() 方法中,創建 ExcelApp 實例后,使ExcelApp.ScreenUpdating=false; ExcelApp.Calculation=manual; ExcelApp.DisplayAlerts=false;
ExcelApp.ScreenUpdating=false; ExcelApp.Calculation=manual; ExcelApp.DisplayAlerts=false;
.
不要使ExcelApp.Visible=false;
在 PreviewExcelReportButton_Click() 方法的最后一個塊中,執行Mouse.OverrideCursor = Cursors.Arrow;
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