我想在datagrid中获取所选单元格的值,请任何人告诉如何执行此操作。我使用了SelectedCell改变了事件,我怎么能这样做?
dataGrid1.CurrentCell
答案 0 :(得分:14)
当我遇到这个问题时,我这样接近它:
我创建了一个DataRowView
,抓住了列索引,然后在行的ItemArray
DataRowView dataRow = (DataRowView)dataGrid1.SelectedItem;
int index = dataGrid1.CurrentCell.Column.DisplayIndex;
string cellValue = dataRow.Row.ItemArray[index].ToString();
答案 1 :(得分:13)
请参阅MSDN上的DataGrid Class页面。从该页面:
<强>选择强>
默认情况下,当用户单击DataGrid中的单元格时,将选择整行,并且用户可以选择多行。您可以设置SelectionMode属性以指定用户是否可以选择单元格,完整行或两者。设置SelectionUnit属性以指定是选择多行还是单元格,还是仅选择单行或单元格。
您可以获取有关从SelectedCells属性中选择的单元格的信息。您可以在SelectedCellsChanged事件的SelectedCellsChangedEventArgs中获取有关已更改选择的单元格的信息。调用SelectAllCells或UnselectAllCells方法以编程方式选择或取消选择所有单元格。有关详细信息,请参阅DataGrid控件中的默认键盘和鼠标行为。
我已经为您添加了相关属性的链接,但我现在已经没时间了,所以我希望您可以按照链接获取解决方案。
答案 2 :(得分:11)
如果您只选择一个单元格,那么就像这样选择单元格内容
var cellInfo = dataGrid1.SelectedCells[0];
var content = cellInfo.Column.GetCellContent(cellInfo.Item);
此处内容将是您选择的单元格值
如果您选择多个单元格,那么您可以这样做
var cellInfos = dataGrid1.SelectedCells;
var list1 = new List<string>();
foreach (DataGridCellInfo cellInfo in cellInfos)
{
if (cellInfo.IsValid)
{
//GetCellContent returns FrameworkElement
var content= cellInfo.Column.GetCellContent(cellInfo.Item);
//Need to add the extra lines of code below to get desired output
//get the datacontext from FrameworkElement and typecast to DataRowView
var row = (DataRowView)content.DataContext;
//ItemArray returns an object array with single element
object[] obj = row.Row.ItemArray;
//store the obj array in a list or Arraylist for later use
list1.Add(obj[0].ToString());
}
}
答案 3 :(得分:4)
如果SelectionUnit="Cell"
试试这个:
string cellValue = GetSelectedCellValue();
其中:
public string GetSelectedCellValue()
{
DataGridCellInfo cellInfo = MyDataGrid.SelectedCells[0];
if (cellInfo == null) return null;
DataGridBoundColumn column = cellInfo.Column as DataGridBoundColumn;
if (column == null) return null;
FrameworkElement element = new FrameworkElement() { DataContext = cellInfo.Item };
BindingOperations.SetBinding(element, TagProperty, column.Binding);
return element.Tag.ToString();
}
似乎它不应该那么复杂,我知道......
修改:这似乎不适用于DataGridTemplateColumn
类型的列。如果您的行由自定义类组成并且您已分配了排序成员路径,也可以尝试此操作:
public string GetSelectedCellValue()
{
DataGridCellInfo cells = MyDataGrid.SelectedCells[0];
YourRowClass item = cells.Item as YourRowClass;
string columnName = cells.Column.SortMemberPath;
if (item == null || columnName == null) return null;
object result = item.GetType().GetProperty(columnName).GetValue(item, null);
if (result == null) return null;
return result.ToString();
}
答案 4 :(得分:2)
//Xaml Code
<DataGrid.Columns>
<DataGridTextColumn Binding="{Binding Path=Date, Converter={StaticResource dateconverter}, Mode=OneWay}" Header="Date" Width="100"/>
<DataGridTextColumn Binding="{Binding Path=Prescription}" Header="Prescription" Width="900"/>
</DataGrid.Columns>
//C# Code
DataRowView row = (DataRowView)grid1.SelectedItem;
MessageBox.Show(row["Prescription"].toString() + " " + row["Date"].toString());
由于WPF在DataGrids中提供绑定,因此应该相当透明。但是,如果您使用了SQLDataAdapter并提供了DataGridColoumns的绑定路径,则以下方法才有效。例如。让我们说上面的datagrid名为grid1,它自动生成列设置为false,并使用绑定将列名绑定到Headers。在这种情况下,我们使用&#39;行&#39;变量类型&#39; DataRowView&#39;并将选定的行存储在其中。现在,使用绑定路径,并引用所选行的各个列。 希望这可以帮助!干杯!
PS:如果SelectionUnit =&#39;行&#39;
,则有效答案 5 :(得分:2)
我正在将Rushi的解决方案扩展到以下(这解决了我的难题)
var cellInfo = Grid1.SelectedCells[0];
var content = (cellInfo.Column.GetCellContent(cellInfo.Item) as TextBlock).Text;
答案 6 :(得分:1)
这两种方法可用于从所选行中获取值
/// <summary>
/// Take a value from a the selected row of a DataGrid
/// ATTENTION : The column's index is absolute : if the DataGrid is reorganized by the user,
/// the index must change
/// </summary>
/// <param name="dGrid">The DataGrid where we take the value</param>
/// <param name="columnIndex">The value's line index</param>
/// <returns>The value contained in the selected line or an empty string if nothing is selected</returns>
public static string getDataGridValueAt(DataGrid dGrid, int columnIndex)
{
if (dGrid.SelectedItem == null)
return "";
string str = dGrid.SelectedItem.ToString(); // Take the selected line
str = str.Replace("}", "").Trim().Replace("{", "").Trim(); // Delete useless characters
if (columnIndex < 0 || columnIndex >= str.Split(',').Length) // case where the index can't be used
return "";
str = str.Split(',')[columnIndex].Trim();
str = str.Split('=')[1].Trim();
return str;
}
/// <summary>
/// Take a value from a the selected row of a DataGrid
/// </summary>
/// <param name="dGrid">The DataGrid where we take the value.</param>
/// <param name="columnName">The column's name of the searched value. Be careful, the parameter must be the same as the shown on the dataGrid</param>
/// <returns>The value contained in the selected line or an empty string if nothing is selected or if the column doesn't exist</returns>
public static string getDataGridValueAt(DataGrid dGrid, string columnName)
{
if (dGrid.SelectedItem == null)
return "";
for (int i = 0; i < columnName.Length; i++)
if (columnName.ElementAt(i) == '_')
{
columnName = columnName.Insert(i, "_");
i++;
}
string str = dGrid.SelectedItem.ToString(); // Get the selected Line
str = str.Replace("}", "").Trim().Replace("{", "").Trim(); // Remove useless characters
for (int i = 0; i < str.Split(',').Length; i++)
if (str.Split(',')[i].Trim().Split('=')[0].Trim() == columnName) // Check if the searched column exists in the dataGrid.
return str.Split(',')[i].Trim().Split('=')[1].Trim();
return str;
}
答案 7 :(得分:1)
我很长时间都在努力解决这个问题! (使用VB.NET)基本上,您获得所选单元格的行索引和列索引,然后使用它来访问该值。
Private Sub LineListDataGrid_SelectedCellsChanged(sender As Object, e As SelectedCellsChangedEventArgs) Handles LineListDataGrid.SelectedCellsChanged
Dim colInd As Integer = LineListDataGrid.CurrentCell.Column.DisplayIndex
Dim rowInd As Integer = LineListDataGrid.Items.IndexOf(LineListDataGrid.CurrentItem)
Dim item As String
Try
item = LLDB.LineList.Rows(rowInd)(colInd)
Catch
Exit Sub
End Try
End Sub
结束班
答案 8 :(得分:1)
在进行逆向工程和反射的小小精灵之后,可以在SelectedCells
(在任何时候)执行此操作以获得全部(无论在一行上选择或许多行)从一个到多个选定单元格的数据:
MessageBox.Show(
string.Join(", ", myGrid.SelectedCells
.Select(cl => cl.Item.GetType()
.GetProperty(cl.Column.SortMemberPath)
.GetValue(cl.Item, null)))
);
我在文本(字符串)字段上尝试过此操作,但DateTime字段应该返回值ToString()
。另请注意,SortMemberPath
与Header
不同,因此应始终提供适当的属性以反映出来。
<DataGrid ItemsSource="{Binding MyData}"
AutoGenerateColumns="True"
Name="myGrid"
IsReadOnly="True"
SelectionUnit="Cell"
SelectionMode="Extended">
答案 9 :(得分:0)
您也可以使用此功能。
public static void GetGridSelectedView(out string tuid, ref DataGrid dataGrid,string Column)
{
try
{
// grid selected row values
var item = dataGrid.SelectedItem as DataRowView;
if (null == item) tuid = null;
if (item.DataView.Count > 0)
{
tuid = item.DataView[dataGrid.SelectedIndex][Column].ToString().Trim();
}
else { tuid = null; }
}
catch (Exception exc) { System.Windows.MessageBox.Show(exc.Message); tuid = null; }
}
答案 10 :(得分:0)
为我工作
object item = dgwLoadItems.SelectedItem;
string ID = (dgwLoadItems.SelectedCells[0].Column.GetCellContent(item) as TextBlock).Text;
MessageBox.Show(ID);
答案 11 :(得分:0)
我愚蠢地找不到解决方案...
对于我(VB):
Dim string= Datagrid.SelectedCells(0).Item(0).ToString
答案 12 :(得分:-1)
我当时处于这种情况..并发现了这一点
int ColumnIndex = DataGrid.CurrentColumn.DisplayIndex;
TextBlock CellContent = DataGrid.SelectedCells[ColumnIndex].Column.GetCellContent(DataGrid.SelectedItem);
并确保对待自定义列的模板