Datagridview rowvalidating event example

However, you'll need to add a button and one line of code to be able to save changes back to the database. Load 'TODO: This line of code loads data into the 'North Wind Data Set. If the user hovers over the red "eye ball" (it kinda looks like a lower-case "i") they will see the reason why the input was rejected. Cancel" method with some caution, as it will "lock down" the Data Grid View control, and not let the user move to any other row (or switch to any other control) until after the error is fixed.

I'd like the user to have the option of typing in the product ID or clicking a "Button" in the next column which would display another Gridview (like a Pop-Up) and allow the customer to select the product ID.

Click on this triangle to select the data source that was created for you when you ran the Data Source Conversion Wizard. You can use the Error Provider class to display the problems detected during validation.

Afterwards, you should have a fully-functional program that will allow you to view the data in the Data Table. When an input error occurs, there will be a little red exclamation point at that cell location.

From Visual Studio, all you'd have to do is add the MDB file to the project and it will automatically launch the Data Source Conversion Wizard. You can perform most of these tweaks by either using the designer or via code. Padding = p ' set the monetary string format style.

At the conclusion of this wizard, you'll have a strongly-typed dataset, a Table Adapter, and Data Table added to your project. Products) End Sub ' ' Save the changes you've made via the Data Grid View back to the ' underlying database ' Private Sub bn Update_Click(By Val sender As System. Let's look at how you could perform some simple tweaks in a column that contains a Money field. Format = "$#.00" ' apply the style to the column Data Grid View1. Default Cell Style = style The major technique for detected errors in a Data Grid View is by the Row Validating event.

Leave a Reply