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James
1270
Problem with MaskInput and MaxValue behaviour
posted

Let's say I want a column for entering decimal degrees for values between -180 and 180, with decimal place precision. I might set a column as:

column.MaskInput = "{double:-3.6}";
column.MinValue = -180;
column.MaxValue = 180;

However, when I enter a value like 180.1, I get an error message when the cell exits edit mode:

Data Error - Unable to update the data value: Input value does not satisfy maximum value constraint.

But why did the editor allow 180.1 to be entered in the first place? That breaks the maximum value?

How do I either prevent this, or stop that Data Error message displaying so that I can put my own validation in?

Thanks

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  • 71886
    Offline posted

    Hello,

    I believe that this is expected since the 'MaxValue' property is not actually restricting you from typing a greater value. It does not allow entering a greater value then the max one. So I tried to get the desired behavior through the following code sample:

            private void ultraGrid1_CellChange(object sender, Infragistics.Win.UltraWinGrid.CellEventArgs e)
        {
            decimal n;
            bool isDecimal = Decimal.TryParse(e.Cell.GetText(Infragistics.Win.UltraWinMaskedEdit.MaskMode.Raw), out n);
            if (isDecimal)
            {
                if (e.Cell.Column.Key== "Decimal Column" && Convert.ToDecimal(e.Cell.GetText(Infragistics.Win.UltraWinMaskedEdit.MaskMode.Raw)) > Convert.ToDecimal(e.Cell.Column.MaxValue))
                {
                    e.Cell.Value = e.Cell.Column.MaxValue;
                    e.Cell.SelStart = e.Cell.Text.IndexOf(Thread.CurrentThread.CurrentCulture.NumberFormat.NumberDecimalSeparator);
                }
            }
        }

     

    Please feel free to let me know if I misunderstood you or if you have any other questions.

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