The Data Grid View control available as a part of Windows Forms controls in Visual Studio 2008 is much more powerful than it's previous versions.This tutorial is a basic introduction of how to write a simple data driven application using Visual Studio 2008 wizards without writing a single line of code.
If the event handler for the Cell Validating event finds that the value is an empty string, the Data Grid View prevents the user from exiting the cell until a non-empty string is entered.
For a complete explanation of this code example, see Walkthrough: Validating Data in the Windows Forms Data Grid View Control.
This document is divided into about 5 logical sections starting with a feature and structure overview, followed by an overview of built‑in column and cell types.
Next is an overview of working with data, followed by an overview of specific major features.
Please also try not to crowd your code with explanatory comments, this reduces the readability of both the code and the explanations!
In database tables, we have some specific codes which have specific meaning.Net ======== Dim da As New Sql Data Adapter Dim dt As New Data Table Call conec DB() 'Connection to Database da. Select Command = New Sql Command("select max(Ref No) from Base Data", conn DB) da. With the Data Grid View control, you can display and edit tabular data from many different kinds of data sources. Now your data source is created, right click on Data Grid View control and on the option Choose Data Source, select the data source you just created. Binding data to the Data Grid View control is straightforward and intuitive, and in many cases it is as simple as setting the Data Source property. When you display data entry functionality to users, you frequently have to validate the data entered into your form.