Datagridview rowvalidating event example
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.I am manually handling the Datasource Update which is dependant on the validations. Example: I have both a "Company" column and a "Division" Column.Both columns may have a valid entry for each independent cell but there are only certain valid "Divisions" for a given "Company".
Display Member = "Category Name" ' the column value you want displayed dgvc. Get Data() ' the child table ' some more tweaking dgvc. Automatic ' insert the new column at the same location Data Grid View1. Insert(index, dgvc)) Now the user can select the user-friendly Category strings and also is prevented from selecting a value that's not a valid Category ID If the 5 built-in column types is not sufficient, it is fairly easy to add a custom column type yourself.The concept is to have a button column which the user could click if he/she input the wrong ID and select the Correct One.The problem, if the user inputs an invlaid Product ID, Cell Validating Fires and prevents the user from navagating away and clicking the Button which would display the valid options to select from. Note-I'm using a second datagridview instead of a combobox column in my initial DGV because i what to provide more information for the user to have availble like description, price, Onhand qty, etc..I was attempting to use Cell validation for the individual values and then apply Row Validating to ensure the validity of the group "Company and Division".Otherwise, a valid company and division would pass the first line of validations and allow the Update of an Invalid Company/Division combination. Let me diverge from the intial description to the REAL Issue.