Selecting a Row in a DataGrid

Question

Hello! I`ve a datagrid on a windows forms. Now i want to test online which rows are selected. One possibility is to use DataGrid.Isselected(index) in the idle time. But there must be a better way. What i need is an event like : OnselectingRow() which is fired everytime the user selects a new row. tnx for your helps.

Administrator · Answer

But if You use sorting or filtering in DataGrid use DataView instead of DataTable. The simple solution (not tested when it works): myDataGrid.DefaultView[myRow].Row[myField] or more complicated - create Your own property in object inherited from DataGrid: public DataView GridView { get { try { return (DataView)(this.ListManager.List); } catch { return null; } } } and use it: myDataGrid.GridView[myRow].Row[myField]

Administrator · Answer

Los_Calibra First get the Row number of the selected row: int gridRow = dataGrid1.CurrentCell.RowNumber Next get the DateSource : DataTable dt = ((DataSet)dataGrid1.DataSource).Tables[My_Table]; Now get the value: dt.Rows[gridRow][Column_Name] Hope this Helps

Administrator · Answer

When You select only one row (standard in DataGrid) it's quite good. Next - you may create inherited DataGrid and override select methods (with new keyword; usual overriding is impossible). Now I'm trying to do this. I use four methods: public new void Select(int row){ ... } public new void UnSelect(int row){ ... } public new bool IsSelected(int row){ ... } protected new void ResetSelection(){ ... } It works but not always - it's necessary to find another methods/properties to override I think. You may create your own event OnSelection etc. in these methods (or create your own delegate with another parameters): public event EventHandler OnSelection; and use it: if(OnSelection!=null) OnSelection(this);

Administrator · Answer

At this point I have this problem: How can I get the data object behind the currently selected row of a DataGrid WinControl. How can I retrive the value of a specific field what corespond to that selected row - for example value for IDField who does'nt have a reprezentative column in that DataGrid. A C# example will be good!

Administrator · Answer

CurrentCellChanged CurrentCell.RowNumber