組合框在Syncfusion XlsIO

Question

您好我是新與Syncfusion產品， 我需要在Excel中創建的文件 組合框，我發現的價值：包含的SelectedValue和SelectedIndex的 但並不是所有的值

IComboBoxShape。

我應該用另一件事

這裏是我的代碼

var xlApp = xl.Excel; 
var wkbk = xlApp.Workbooks.Open(stream); 
var sheet1 = kbk.Worksheets[0]; 
var combobox = sheet1.ComboBoxes[0]; 

和之後呢？我該怎麼辦？

Answer 1

通常通過指定單元格的範圍將項目綁定到Excel組合框。在特定範圍的單元格中出現的值在Excel文件中列爲ComboBox項目。另外，即使通過引用/綁定的單元格位於不同的工作表中，Essential XlsIO也會返回適當的範圍。屬性「xlComboBox.ListFillRange」包含爲填充組合框項目而引用/綁定的單元格的範圍。使用此屬性，您可以檢索範圍，然後遍歷範圍以獲取所有組合框項目。因此，我附上了代碼片段來檢索組合框項目。

private void button1_Click(object sender, EventArgs e) 
    { 
     //Instantiate the spreadsheet creation engine. 
     ExcelEngine excelEngine = new ExcelEngine(); 

     //Instantiate the excel application object. 
     IApplication application = excelEngine.Excel; 

     //Open the excel file and instantiate the workbook object 
     IWorkbook workbook = application.Workbooks.Open(@"..\..\Data\Book1.xlsx"); 

     //Retrieve the Excel comboBox from the worksheet 
     IComboBoxShape xlComboBox = workbook.Worksheets[0].ComboBoxes[0]; 
     //user defined method to retrieve Excel ComboBox items and populate them in a Windows forms - ComboBox control 
     RetrieveItemsFromExcelComboBox(xlComboBox, comboBox1); 

     xlComboBox = workbook.Worksheets[0].ComboBoxes[1]; 
     RetrieveItemsFromExcelComboBox(xlComboBox, comboBox2); 


     //Close the workbook. 
     workbook.Close(); 
     //Dispose the excel engine 
     excelEngine.Dispose(); 

    } 
    /// <summary> 
    /// Retrieve the items from the Excel ComboBox and populate them in Windows form - ComboBox control 
    /// </summary> 
    /// <param name="xlComboBox">Excel combobox instance (IComboBoxShape)</param> 
    /// <param name="comboBox">Windows Forms - Combo Box instance</param> 
    private void RetrieveItemsFromExcelComboBox(IComboBoxShape xlComboBox, ComboBox wfComboBox) 
    { 
     //Get the range where the ComboBox items are present in the workbook 
     IRange xlRange = xlComboBox.ListFillRange; 
     //iterate through the range of the comboBox items and add them into the Windows forms - ComboBox control 
     for (int rowIndex = xlRange.Row; rowIndex <= xlRange.LastRow; rowIndex++) 
     { 
      for (int colIndex = xlRange.Column; colIndex <= xlRange.LastColumn; colIndex++) 
      { 
       wfComboBox.Items.Add(xlRange[rowIndex, colIndex].DisplayText); 
      } 
     } 
     wfComboBox.SelectedIndex = xlComboBox.SelectedIndex - 1; 
    } 

讓我知道它是否對您有幫助。