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In this case, you needn't cycle through every control and call its Select method to force validation. NET Application Architect, Enthusiast, & Evangelist T. Bradley - news: OH**************@TK2MSFTNGP04gbl... |I have a windows form that I want to force validation on controls (text | boxes) when the user clicks a "Save" button.
However, if the user doesn't edit in any textbox on the form and click the Save button directly, the textbox's Validating event won't be raised. The only way I've found to do | this is to cycle through every control and call it's . This | is clunky though because you can see a flash in each text box as it's being | validated. Select() | End if | Next c | End Sub | | Each control has code in their Control_Validating event that fires off an | errorprovider.
Select() End if Next c End Sub Each control has code in their Control_Validating event that fires off an errorprovider.In this example, we will see how to use the Error Provider control in Windows forms to provide validations in Windows Forms and display user-friendly error messages to the user if the validation fails. Add controls as shown in the figure below and set the properties of the controls as indicated in the table.Figure 1: Error Provider Sample The complete code listing is provided at the end of the sample. Table 1: Properties for Sample Form Layout Controls Now add a Error Provider control to the Form. Net, you can drag and drop the control from the toolbox. Please refer to the code listing provided at the end of the article.Built-in validation doesn't go much further than an enforcable maximum length for textboxes, but there are some nice methods you can use to make validation a breeze.When a user is tabbing fast through a dialog entering data, they are sometimes going to get it wrong. When we do get it wrong, however, we don't want to be bugged about it.