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Message: [QUOTE="aurelie, post: 4261348"] Hello, I have a problem with one datagrid and a CompareValidator : I have a datagrid, filled with textbox, and a button. I expect integer in my textbox, so I want to test data before to process with a validator. I build my dategrid in a function called in the Page.Load(). ---------------------------------------------------------------------------------- TemplateColumn textBoxColumn = new TemplateColumn(); textBoxColumn.HeaderText = ""; MainDataGrid.Columns.Add(textBoxColumn); int j = 0; foreach(DataGridItem dgi in MainDataGrid.Items) { // TextBox Warning TextBox warningTextBox = new TextBox(); warningTextBox.ID = "warningTextBox"+j; warningTextBox.Width = 50; warningTextBox.EnableViewState = true; dgi.Cells[0].Controls.Add(warningTextBox); // Validator CompareValidator warningValidator = new CompareValidator(); warningValidator.ControlToValidate = warningTextBox.ID; warningValidator.Operator = ValidationCompareOperator.DataTypeCheck; warningValidator.Type = ValidationDataType.Integer; warningValidator.Text = "error"; warningValidator.Display = ValidatorDisplay.Dynamic; warningValidator.ID = "warningValidator"+j; dgi.Cells[0].Controls.Add(warningValidator); j++; } ---------------------------------------------------------------------------------- Next in the Button_Click(), I test data validity. But there is no message and the function isValid always equals to true. ---------------------------------------------------------------------------------- CompareValidator warningValidator = (CompareValidator)MainDataGrid.Cells[0].Controls[1]; if (warningValidator != null) { warningValidator.Validate(); if (warningValidator.IsValid) { the next..... } } [/QUOTE]

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