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SpellChecking RadGridView

RadSpellChecker is not limited to checking only simple text-editing controls such as RadTextBox. It can spell check editors in more complex controls such as RadGridView as well.

Here is a sample scenario: the end-user types something in RadTextBoxEditor in RadGridView and tries to commit the typed text in the cell. This is the place where RadSpellChecker should appear and correct the misspelled words. After a confirmation given by the end-user on the RadSpellChecker form, the editor should close and the corrected values should be committed to the edited cell.

Supposing that we have a RadGridView filled with data and a RadSpellChecker on the form, the following steps demonstrate how to implement the given scenario:

1. Let's subscribe to CellValidating event. This event is fired when the edited cell should be validated before the editor for that particular cell is closed. In this event we should call the Check method of RadSpellChecker passing the currently opened editor:

Spell check RadGridView's editor

string correctedValue = String.Empty;
void radGridView1_CellValidating(object sender, Telerik.WinControls.UI.CellValidatingEventArgs e)
    RadTextBoxEditor editor = e.ActiveEditor as RadTextBoxEditor;
    if (editor != null)
        RadTextBoxEditorElement element = editor.EditorElement as RadTextBoxEditorElement;
        correctedValue = e.ActiveEditor.Value.ToString();

Dim correctedValue As String = String.Empty
Private Sub RadGridView1_CellValidating(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.CellValidatingEventArgs) Handles RadGridView1.CellValidating
    Dim editor As RadTextBoxEditor = TryCast(e.ActiveEditor, RadTextBoxEditor)
    If editor IsNot Nothing Then
        Dim element As RadTextBoxEditorElement = TryCast(editor.EditorElement, RadTextBoxEditorElement)
        correctedValue = e.ActiveEditor.Value.ToString()
    End If
End Sub

Please note that the editor sets the corrected value to the opened editor, but not directly to the underlying data cell. We save this editor value in a variable named 'correctedValue'

2. Now we should subscribe to the CellEndEdit event which is fired after the editor is closed. In this event we should pass the saved corrected value to the data cell:

Save the corrected value

void radGridView1_CellEndEdit(object sender, GridViewCellEventArgs e)
    this.radGridView1.CurrentCell.Value = correctedValue;

Private Sub RadGridView1_CellEndEdit(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.GridViewCellEventArgs) Handles RadGridView1.CellEndEdit
    Me.RadGridView1.CurrentCell.Value = correctedValue
End Sub

The following figures provide the end-user experience with RadSpellChecker and RadGridView:

  1. The end-user types 'Sales Representativ':

    WinForms RadSpellChecker Editing Cell

  2. Then the end-user tries to commit the misspelled value by pressing the Enter key. As a consequence, the RadSpellChecker form is invoked:

    WinForms RadSpellChecker Form

  3. After the user chooses one of the suggestions and presses the Change button, the RadSpellChecker form disappears, leaving an informative message box that the spell checking operation is completed:

    WinForms RadSpellChecker Success Dialog

  4. The end-user pressed the OK button. Then, the message box disappears, the editor closes and the corrected value is saved in the cell:

    WinForms RadSpellChecker Cell Text After Correcting the Value

See Also

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