Vb net using errorprovider on multiple controls code# Start the application and press the Validate button without filling textboxes. You will see small icons (exclamation point into a red circle) appear to the right of both textboxes. If you place the mouse pointer over one of these icons, a tooltip will appear containing the message you set in the click event. Now, enter some data into the textboxes and press the button again. Have you notice that we put only one ErrorProvider control and the same control is bound to many other controls! The same ErrorProvider control can be used by many controls on the same form. In fact, the only reason why you should have more then one ErrorProvider Control is because you have different icons for different controls.Īnother thing you may want to change is the position of the icon. This setting is set of each control on not on the ErrorProvider control. Do you remember that adding the ErrorProvider control added properties to the controls on the form? One of these properties is the "IconAlignment On ErrorProvider1" which is MiddleRight by default but may be set to one of the six different value (a mix of left-right with top-middle-bottom). Validation done on the click of a button is perfect in the web world. In the Windows rich UI interface, you may want a faster validation. Vb net using errorprovider on multiple controls windows# Why not validate on each changed in a textbox? Let's say we need the user to enter 2 values within specific range and validate the values as the user is typing. To do this, add 2 TextBox controls (name them txtNumber1 and txtNumber2 - set their Text property to 0). Vb net using errorprovider on multiple controls windows#.Vb net using errorprovider on multiple controls download#.Vb net using errorprovider on multiple controls code#.Vb net using errorprovider on multiple controls how to#.
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