How to: Get the Selected Cells, Rows, and Columns in the Windows Forms DataGridView Control

You can get the selected cells, rows, or columns from a DataGridView control by using the corresponding properties: SelectedCells, SelectedRows, and SelectedColumns. In the following procedures, you will get the selected cells and display their row and column indexes in a MessageBox.

To get the selected cells in a DataGridView control

  • Use the SelectedCells property.

    Note

    Use the AreAllCellsSelected method to avoid showing a potentially large number of cells.

    Private Sub selectedCellsButton_Click( _
        ByVal sender As Object, ByVal e As System.EventArgs) _
        Handles selectedCellsButton.Click
    
        Dim selectedCellCount As Integer = _
            dataGridView1.GetCellCount(DataGridViewElementStates.Selected)
    
        If selectedCellCount > 0 Then 
    
            If dataGridView1.AreAllCellsSelected(True) Then
    
                MessageBox.Show("All cells are selected", "Selected Cells")
    
            Else 
    
                Dim sb As New System.Text.StringBuilder()
    
                Dim i As Integer 
                For i = 0 To selectedCellCount - 1
    
                    sb.Append("Row: ")
                    sb.Append(dataGridView1.SelectedCells(i).RowIndex _
                        .ToString())
                    sb.Append(", Column: ")
                    sb.Append(dataGridView1.SelectedCells(i).ColumnIndex _
                        .ToString())
                    sb.Append(Environment.NewLine)
    
                Next i
    
                sb.Append("Total: " + selectedCellCount.ToString())
                MessageBox.Show(sb.ToString(), "Selected Cells")
    
            End If 
    
        End If 
    
    End Sub
    
    private void selectedCellsButton_Click(object sender, System.EventArgs e)
    {
        Int32 selectedCellCount =
            dataGridView1.GetCellCount(DataGridViewElementStates.Selected);
        if (selectedCellCount > 0)
        {
            if (dataGridView1.AreAllCellsSelected(true))
            {
                MessageBox.Show("All cells are selected", "Selected Cells");
            }
            else
            {
                System.Text.StringBuilder sb =
                    new System.Text.StringBuilder();
    
                for (int i = 0;
                    i < selectedCellCount; i++)
                {
                    sb.Append("Row: ");
                    sb.Append(dataGridView1.SelectedCells[i].RowIndex
                        .ToString());
                    sb.Append(", Column: ");
                    sb.Append(dataGridView1.SelectedCells[i].ColumnIndex
                        .ToString());
                    sb.Append(Environment.NewLine);
                }
    
                sb.Append("Total: " + selectedCellCount.ToString());
                MessageBox.Show(sb.ToString(), "Selected Cells");
            }
        }
    }
    

To get the selected rows in a DataGridView control

  • Use the SelectedRows property. To enable users to select rows, you must set the SelectionMode property to FullRowSelect or RowHeaderSelect.

    Private Sub selectedRowsButton_Click( _
        ByVal sender As Object, ByVal e As System.EventArgs) _
        Handles selectedRowsButton.Click
    
        Dim selectedRowCount As Integer = _
            dataGridView1.Rows.GetRowCount(DataGridViewElementStates.Selected)
    
        If selectedRowCount > 0 Then 
    
            Dim sb As New System.Text.StringBuilder()
    
            Dim i As Integer 
            For i = 0 To selectedRowCount - 1
    
                sb.Append("Row: ")
                sb.Append(dataGridView1.SelectedRows(i).Index.ToString())
                sb.Append(Environment.NewLine)
    
            Next i
    
            sb.Append("Total: " + selectedRowCount.ToString())
            MessageBox.Show(sb.ToString(), "Selected Rows")
    
        End If 
    
    End Sub
    
    private void selectedRowsButton_Click(object sender, System.EventArgs e)
    {
        Int32 selectedRowCount =
            dataGridView1.Rows.GetRowCount(DataGridViewElementStates.Selected);
        if (selectedRowCount > 0)
        {
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
    
            for (int i = 0; i < selectedRowCount; i++)
            {
                sb.Append("Row: ");
                sb.Append(dataGridView1.SelectedRows[i].Index.ToString());
                sb.Append(Environment.NewLine);
            }
    
            sb.Append("Total: " + selectedRowCount.ToString());
            MessageBox.Show(sb.ToString(), "Selected Rows");
        }
    }
    

To get the selected columns in a DataGridView control

  • Use the SelectedColumns property. To enable users to select columns, you must set the SelectionMode property to FullColumnSelect or ColumnHeaderSelect.

    Private Sub selectedColumnsButton_Click( _
        ByVal sender As Object, ByVal e As System.EventArgs) _
        Handles selectedColumnsButton.Click
    
        Dim selectedColumnCount As Integer = dataGridView1.Columns _
            .GetColumnCount(DataGridViewElementStates.Selected)
    
        If selectedColumnCount > 0 Then 
    
            Dim sb As New System.Text.StringBuilder()
    
            Dim i As Integer 
            For i = 0 To selectedColumnCount - 1
    
                sb.Append("Column: ")
                sb.Append(dataGridView1.SelectedColumns(i).Index.ToString())
                sb.Append(Environment.NewLine)
    
            Next i
    
            sb.Append("Total: " + selectedColumnCount.ToString())
            MessageBox.Show(sb.ToString(), "Selected Columns")
    
        End If 
    
    End Sub
    
    private void selectedColumnsButton_Click(object sender, System.EventArgs e)
    {
        Int32 selectedColumnCount = dataGridView1.Columns
            .GetColumnCount(DataGridViewElementStates.Selected);
        if (selectedColumnCount > 0)
        {
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
    
            for (int i = 0; i < selectedColumnCount; i++)
            {
                sb.Append("Column: ");
                sb.Append(dataGridView1.SelectedColumns[i].Index
                    .ToString());
                sb.Append(Environment.NewLine);
            }
    
            sb.Append("Total: " + selectedColumnCount.ToString());
            MessageBox.Show(sb.ToString(), "Selected Columns");
        }
    }
    

Compiling the Code

This example requires:

Robust Programming

The collections described in this topic do not perform efficiently when large numbers of cells, rows, or columns are selected. For more information about using these collections with large amounts of data, see Best Practices for Scaling the Windows Forms DataGridView Control.

See Also

Reference

DataGridView

SelectionMode

AreAllCellsSelected

SelectedCells

SelectedRows

SelectedColumns

Other Resources

Selection and Clipboard Use with the Windows Forms DataGridView Control