C# - Datatable, how to limit values that are input directly on it, is there a “changevalue” event?

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I have a dataset which contains the following tables:

http://i.stack.imgur.com/fZisY.png

As you can see it's possible to edit it's values directly (and i prefer it that way), but sometimes i wanna limit its value, for example, if the user attempts to place a number 3, i want the program to display a message:

MessageBox.Show("This parameter can only use values between 0 and 1.";);
and then proceed to set the value to 1 (which is closest to 3)

is this possible? What is the action that makes the program recognize the value the user has just input?

Posted 4-May-14 0:14am

César Amorim

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[no name] 4-May-14 6:18am

Try using the CellValidating or RowValidating events.

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Kornfeld Eliyahu Peter · Accepted Answer · 2014-05-04T00:23:00

Solution 1

You can try this:

1. Add range to your column using ExtendedProperties[^]
2. Handle ColumnChanging[^] event. In it check for ExtendedProperties and check value if there are some...

Posted 4-May-14 0:23am

Kornfeld Eliyahu Peter

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César Amorim 4-May-14 6:48am

but i dont wanna handle column changing, i must handle the value in a specific row and column

Kornfeld Eliyahu Peter 4-May-14 6:50am

From MSDN about ColumnChanging event: "Occurs when a value is being changed for the specified DataColumn in a DataRow."

César Amorim 4-May-14 8:16am

thank you, will look trough