Header Text = "Types" '---add items to it--- combo Box Col. Add("Price", "Price") '---add a combobox column--- Dim combo Box Col As New Data Grid View Combo Box Column '---set the header text--- combo Box Col. "but when i correct and enter a valid date, i still get an error. Data Grid View Cell Validating Event Args) _ Handles Rental Data Grid View. Private Sub Rental Data Grid View_Cell Validating(By Val sender As Object, _ By Val e As System. Cell Validating Try With Rental Data Grid View If e. I need to check that only one of the two can be checked. Its just that my UI does not respond correctly and I can't expect my users to get out of it that way. Bob "Bob" In a datagridview (vs2005, VB.net) I have two columns that are checkboxes. An alternative way would be to add the items to the Data Grid View Combo Box Column control directly, as shown: '---adding columns--- Data Grid View1. Data Source = bindingsource '---add a combobox column to the Data Grid View control--- Data Grid View1. Add(combo Box Col) The previous code showed how you can bind a Binding Source control (containing a list of items to let the users choose) to a Data Grid View Combo Box Column control inside a Data Grid View control.
In order to achieve this, you need to perform two things: - the Drop Down Stype property of the Combo Box editing control needs to be set to Drop Down. - ensure that the value that the user typed into the cell is added to the combo box items collection.Due Date must be greater than higher date, if not the cell validation will prompt the user with an error message. Value) Is DBNull) Then Dim Due Date As Date Dim Hire Date As Date Dim str Result As Integer Due Date = CDate(. Below is the code how I am trying to validate those i enter duedate less than hiredate, the program displays the error , "Date entered is less than hired date!! Data Property Name = "Cell_2") Then If CBool(Datagrid1("Cell_1", e. I wrote code in the cellvalidating event as follows. Data Grid View Cell Validating Eve nt Args) Handles Datagrid1. Its not permissible to have the two selected to true, but they can both be false.