如何通過提供columnidnex和行索引來獲取和設置WPF DataGrid中單元格的值？

Question

能否請你告訴，如何獲得並提供columnidnex和行指數

感謝

Answer 1

// Getting Data from Grid Cell 
string cellContent = ((TextBox)(GetCell(3).Content)).Text; //As I want the value of 3 column 

public DataGridCell GetCell(int column) 
     { 
      DataGridRow rowContainer = GetRow(); 

      if (rowContainer != null) 
      { 
       DataGridCellsPresenter presenter = GetVisualChild<DataGridCellsPresenter>(rowContainer); 

       // Try to get the cell but it may possibly be virtualized. 
       DataGridCell cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column); 
       if (cell == null) 
       { 
        // Now try to bring into view and retreive the cell. 
        customDataGrid.UCdataGridView.ScrollIntoView(rowContainer, customDataGrid.UCdataGridView.Columns[column]); 
        cell = (DataGridCell)presenter.ItemContainerGenerator.ContainerFromIndex(column); 
       } 
       return cell; 
      } 
      return null; 
     } 

public DataGridRow GetRow() 
     { 
      DataGridRow row = (DataGridRow)customDataGrid.UCdataGridView.ItemContainerGenerator.ContainerFromIndex(_currentRowIndex); 
      if (row == null) 
      { 
       // May be virtualized, bring into view and try again. 
       customDataGrid.UCdataGridView.UpdateLayout(); 
       customDataGrid.UCdataGridView.ScrollIntoView(customDataGrid.UCdataGridView.Items[_currentRowIndex]); 
       row = (DataGridRow)customDataGrid.UCdataGridView.ItemContainerGenerator.ContainerFromIndex(_currentRowIndex); 
      } 
      return row; 
     } 

     public static T GetVisualChild<T>(Visual parent) where T : Visual 
     { 
      T child = default(T); 
      int numVisuals = VisualTreeHelper.GetChildrenCount(parent); 
      for (int i = 0; i < numVisuals; i++) 
      { 
       Visual v = (Visual)VisualTreeHelper.GetChild(parent, i); 
       child = v as T; 
       if (child == null) 
       { 
        child = GetVisualChild<T>(v); 
       } 
       if (child != null) 
       { 
        break; 
       } 
      } 
      return child; 
     } 

// Setting Data to Grid Cell 
if (GetCell(3).Content is TextBlock) // if grid cell is not editable 
{ 
     ((TextBlock)(GetCell(3).Content)).Text = "sometext"; 
} 
else // TextBox - if grid cell is editable 
{ 
     ((TextBox)(GetCell(3).Content)).Text = "sometext"; 
} 

Answer 2

這並不容易，因爲它應該是在WPF設置在WPF數據網格中的單元格的值，它是所有關於選擇視覺兒童（WPF'視覺'對象類型）。 This blog post很好地解釋瞭如何完成它。谷歌它，你可能會發現更多。