原标题：How can I bind Wpf DataGridColumn to an object?
I want to bind the columns of my WPF DataGrid to some objects in a Dictionary like this:
Binding Path=Objects[i]
where Objects is my Dictionary of objects, so that each cell will represent an Object element. How can I do that?
I suppose that I need to create a template for my cell, which I did, but how to get the result of column binding in my template? I know that by default the content of a DataGridCell is a TextBlock and it s Text property is set through column binding result, but if that result is an object I guess that I have to create a ContentTemplate. How do I do that, as the stuff I tried is not displaying anything.
Here it is what I tried:
So, to make myself completly clear, i want to get in CurrentObject property of my DataGridCellControl the current object that should result if I set the column binding in my data grid like this Path=Objects[i].
Thank you for any suggestion,
John.
问题回答
Try this:
Where in ItemsSource="{Binding ElementName=window1, Path=Users, Mode=TwoWay}"
ElementName is the name of the Window in XAML (just add x:Name="window1" to the Window tag as with any other ontrol.
Users is a List, should work the same with Dictionary
Mode=TwoWay means that if the grid gets modified, the list will get modified too, and vice versa (Two way binding)
EDIT:
Try this:
XAML:
C#:
public class TheClass
{
public int Col1, Col2, Col3;
public Dictionary otherColumns = new Dictionary();
}
public class OtherColumns
{
public string ColumnName;
public int Value;
}
And call this method under Window_Loaded:
private void PopulateListView()
{
TheClass c = new TheClass();
c.Col1 = 10;
c.Col2 = 20;
c.Col3 = 30;
c.otherColumns.Add(0, new OtherColumns() { ColumnName = "Col4", Value = 40 });
c.otherColumns.Add(1, new OtherColumns() { ColumnName = "Col5", Value = 50 });
c.otherColumns.Add(3, new OtherColumns() { ColumnName = "Col6", Value = 60 });
DataTable table = new DataTable();
// adding regular columns
table.Columns.Add("Col1", typeof(int));
table.Columns.Add("Col2", typeof(int));
table.Columns.Add("Col3", typeof(int));
// adding dynamic columns
foreach (KeyValuePair pair in c.otherColumns)
{
table.Columns.Add(pair.Value.ColumnName, typeof(int));
}
DataRow row = table.NewRow();
// adding regular column values to the DataTable
row["Col1"] = c.Col1;
row["Col2"] = c.Col2;
row["Col3"] = c.Col3;
// adding dynamic column values to the DataTable
foreach (KeyValuePair pair in c.otherColumns)
{
row[pair.Value.ColumnName] = pair.Value.Value;
}
table.Rows.Add(row);
// Start binding the table.
gridViewTest.Columns.Clear();
System.Windows.Controls.GridViewColumn gvc;
Binding binding;
foreach (DataColumn column in table.Columns)
{
gvc = new System.Windows.Controls.GridViewColumn();
binding = new System.Windows.Data.Binding();
binding.Path = new PropertyPath(column.ColumnName);
binding.Mode = BindingMode.OneWay;
gvc.Header = column.Caption;
gvc.DisplayMemberBinding = binding;
gridViewTest.Columns.Add(gvc);
}
listViewTest.DataContext = table;
}
I m not saying it s the best solution, but it could help. Let me know.
I made some helper classes so I could use the DataGrid as a kind of DataTable. In other words, I wanted the formatting, sorting, and polished look of the DataGrid without having to pre-fab some classes beforehand. The main reason I wanted this was for a testing suite, I wanted to be able to create an arbitrary number of columns and at runtime. Here s what I got
public class DataRow
{
internal List
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