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POthe program do not access ValidatingEditor and InvalidValueException
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  1. POthe program do not access ValidatingEditor and InvalidValueException
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    copied!<p>I am using DevExpress DataGrid I'm filling it from excel.. If the user keep the field Name empty i need to give him an error message.. this my code:</p> <pre><code>using DevExpress.XtraGrid.Views.Base; using DevExpress.XtraGrid.Columns; using DevExpress.XtraEditors.Controls; using DevExpress.XtraGrid.Views.Grid; string FirstName = "First Name"; string FatherName = "Father Name"; string LastName = "Last Name"; private void simpleButton1_Click(object sender, System.EventArgs e) { try { OleDbConnection con = new OleDbConnection(); con.ConnectionString = "Provider=Microsoft.Ace.OLEDB.12.0;Data Source=C:\\Users\\pc\\Documents\\Emp.xlsx;Extended Properties=\"Excel 12.0;HDR=Yes\""; con.Open(); DataTable dtSchema; dtSchema = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" }); OleDbCommand Command = new OleDbCommand ("select * FROM [" + dtSchema.Rows[0]["TABLE_NAME"].ToString() + "]", con); OleDbDataAdapter da = new OleDbDataAdapter(Command); DataSet ds = new DataSet (); da.Fill(ds); dataGrid1.DataSource = ds.Tables[0]; } catch (Exception ex) { MessageBox.Show(ex.Message); } private void gridView3_ValidatingEditor(object sender, DevExpress.XtraEditors.Controls.BaseContainerValidateEditorEventArgs e) { GridView view = sender as GridView; if(view.FocusedColumn.FieldName == "FirstName") { string FirName = (e.Value.ToString()); if(FirName == null) { e.Valid = false; e.ErrorText = "Enter a First Name"; } } } private void gridView3_InvalidValueException(object sender, DevExpress.XtraEditors.Controls.InvalidValueExceptionEventArgs e) { //Do not perform any default action e.ExceptionMode = DevExpress.XtraEditors.Controls.ExceptionMode.NoAction; //Show the message with the error text specified MessageBox.Show(e.ErrorText); } </code></pre> <p>The problem is when I run the program.. the code do not access this code and it's not showing an error.. Could someone notice where's my fault ? Thank you so much</p>
 

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