Vb net datetimepicker validating

from day to month, or from a value cell to a place holder cell) and committal of the whole thing occurs when focus moves out of the control.But the committal of the current cell is not forced before the committal of the whole thing so, if the cell concerned was not "full", the change to it happens too late for the full committal.This means that there does not appear to be any workaround for it at the level of the DTP control itself.As it's a "black box", with this odd behaviour built-in, all my attempts to catch and alter or redirect the user actions that might call what I've referred to as the full committal have failed.Additionally, I would like to recommend that you take a look at the Validation demo showing how validating the dates picked by the user can be done by using other standard ASP. This is a community of tens of thousands of software programmers and website developers including Wrox book authors and readers. By joining today you can post your own programming questions, respond to other developers’ questions, and eliminate the ads that are displayed to guests. Hi, I have a Window form with Date Time Picker control.

You've found a workaround - using Lost Focus - when using the DTP as a stand alone control. In the context of a custom column in a datagrid, about the only alternative I can suggest to "user education" is to shift data validation from the cell level to the row level (i.e.Since it's a separate control feeding the datagrid, waiting for data validation doesn't help, as the wrong data is getting fed to the datagrid.I think probably the only real solution would be to recode the DTP as a class.Is my only solution user education to do one of those things, or is there another way to get the value changed before Validating/Commit fires? The control is, I reckon, composed of various sub-controls.Try using a custom format with a single marker for the day and the month. For me, that fires value changed with a single digit entry before validation fires. Using the analogy of a datagrid's rows, the movement from cell to cell within a row "commits" an edit to the cell that has just been left, and any move to a new row both "commits" the cell that has just been left and then "commits" the whole row that has just been left.

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Now, the problem is that in this setup, args.value is looking like this: "2010-02-27-15-00-00" and this will not parse thru Date Time.

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