SftTree/NET 2.0 - Tree Control for Windows Forms

Valid Field, EditValidateEventArgs Class

Defines whether the new contents are valid.

Class: EditValidateEventArgs
Namespace: Softelvdm.SftTreeNET
Assembly: Softelvdm.SftTreeNET

Syntax

public bool Valid;

Public Valid As Boolean

Comments

Defines whether the new contents are valid.

Examples

C#

                comboBox1.BringToFront();
                comboBox1.Focus();
                e.EditControl = comboBox1;
            }
        }
        private void sftTree1_EditValidate(object sender, EditValidateEventArgs e) {
            if (e.EditControl is TextBox) {
                if (textBox1.Text == "") { // you MUST enter something
                    e.Valid = false;
                    MessageBox.Show("Cell text can't be empty in this example.");
                }
            } else if (e.EditControl is ComboBox) {
                if (comboBox1.Text == "") { // you MUST select something
                    e.Valid = false;
                    MessageBox.Show("Cell text can't be empty in this example.");
                }

View Entire Sample Code

VB.NET

        comboBox1.Focus()
        e.EditControl = comboBox1
    End If
End Sub

Private Sub sftTree1_EditValidate(ByVal sender As Object, ByVal e As Softelvdm.SftTreeNET.EditValidateEventArgs) Handles sftTree1.EditValidate
    If TypeOf e.EditControl Is TextBox Then
        If textBox1.Text = "" Then ' you MUST enter something
            e.Valid = False
            MessageBox.Show("Cell text can't be empty in this example.")
        End If
    ElseIf TypeOf e.EditControl Is ComboBox Then
        If comboBox1.Text = "" Then ' you MUST select something
            e.Valid = False
            MessageBox.Show("Cell text can't be empty in this example.")
        End If

View Entire Sample Code

See Also EditValidateEventArgs Class | Classes | SftTree/NET 2.0