Datagridview call cellvalidating

03-Feb-2016 02:25 by 4 Comments

Datagridview call cellvalidating - article on internet dating

There are times when you need to allow the users to insert additional items into the Combo Box control.First, service the Editing Control Showing event of the Data Grid View control.

I have done the validateion for the datagridview in the cellvalidating event.

Hi, I am trying to validate two columns in a datagridview by comparing the e.g Hiredate and Due Date.

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(.

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.

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.

Default behavior of a Data Grid View Combo Box Cell is that it doesn't support typing into the cell.

But you could have a request from the client who wants to have enabled typing in a Combobox cell.

(If you debug your current code you'll find that Due Date gets populated with the old value of the cell, not the new value. Formatted Value will hold the new value) - Rory 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. Formatted Value "" Then Dim Due Date As Date Dim Hire Date As Date Dim str Result As Integer Due Date = CDate(e.

Data Grid View Cell Validating Event Args) _ Handles Rental Data Grid View.

Header Text = "Types" '---add items to it--- combo Box Col.

Displaying a Combo Box in Cell Frequently, besides displaying text in a cell you may want to display a drop-down list box to allow users to select from a list of pre-determined values.

In this case, you need to add a Combo Box to the cells in the desired column.