Updating datagridview in c

I just wanna update my database with one click only.I do for update my database from datagridview1 but it shows a error like this : Unhandled exception has occurred in your application .Unbound mode is suitable for displaying relatively small amounts of data that you manage programmatically.Virtual mode gives you a higher degree of control by allowing you to wait until a cell is actually being displayed to provide the value it will contain.The following source code illustrate how to connect a Data Grid View to a database and addnew/update or delete the database values from Data Grid View. Full Row Select End Sub Private Sub new_btn_Click(By Val sender As System.

Optionally, invalidates the child controls assigned to the control.(Inherited from Control.)Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.(Inherited from Control.)Invalidates the specified region of the control (adds it to the control's update region, which is the area that will be repainted at the next paint operation), and causes a paint message to be sent to the control.

Data Source = mydata; Data Grid View mydatagridview = new Data Grid View(); mydatagridview.

Hi, Frame Work 2.0 Quick and dirty job so I thought I would do it all on the UI as quick and easy as possible.

Adjusts the height of the column headers based on changes to the contents of the header in the specified column, optionally calculating the height with the expectation that the column and/or row header widths will subsequently be adjusted.

Adjusts the width of the row headers based on changes to the contents of the header in the specified row and using the specified size mode, optionally calculating the width with the expectation that the row and/or column header widths will subsequently be adjusted.

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