Find the Value of an Enumeration

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Find the Value of an Enumeration

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Terry Bottorff	Terry Bottorff posted 12 Years Ago Topic Details Share Topic
Group: Forum Members Posts: 448, Visits: 12K	I have a very simple enumeration public enum paytype cash = 1 check = 2 other = 3 end enum I fill a combo box on my win form with the enum but Not Bound to a BO. It shows cash and so forth the way I want but is there a way to get the value of the one selected? Say person selects check, how do I get 2? Probably easy but not clicking today.... TIA.
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Michel Levy	Michel Levy posted 12 Years Ago Post Details Share Post
Group: StrataFrame Users Posts: 193, Visits: 9K	Hi Terry, look at the EnumDisplayValueAttribute class, in the Microfour.Strataframe.Tools namespace
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Terry Bottorff	Terry Bottorff posted 12 Years Ago Post Details Share Post
Group: Forum Members Posts: 448, Visits: 12K	Michel thank you for the help. This is the code I tried: ======== Dim bEnum As Enumerations.PayTypes = Enumerations.PayTypes.Cash MessageBox.Show(MicroFour.StrataFrame.Tools.Common.GetEnumDisplayValue(bEnum)) MessageBox.Show(MicroFour.StrataFrame.Tools.Common.GetEnumAlternateDisplayValue(bEnum)) =========== And each messagebox showed Cash which I guess makes sense so I am not doing something correct but I am not sure what. What am I overlooking? TIA.
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Edhy Rijo	E Edhy Rijo posted 12 Years Ago Post Details Share Post
E Group: StrataFrame Users Posts: 2.4K, Visits: 23K	Hi Terry, Enumerations are basically Integer type, so all you need to do is to cast the enumeration to Integer, see this pseudo code: Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click Dim bEnum As PayTypes = PayTypes.Cash MessageBox.Show("My Enum value = " + CInt(bEnum).ToString) End Sub Public Enum PayTypes As Integer Cash = 1 Check = 2 Other = 3 End Enum As for the MicroFour.StrataFrame.Tools.Comon.GetEnumDisplayValue(bEnum), it is a very nice method that will display a custom display value used in the EnumDisplayValue attribute when creating the enum like this: Public Enum PayTypes As Integer <EnumDisplayValue("Cash Payment")> Cash = 1 <EnumDisplayValue("Check Payment")> Check = 2 <EnumDisplayValue("Other Type of Payment")> Other = 3 End Enum The EnumDisplayValue attribute will require you to Import the MicroFour.StrataFrame.Tools class and also give control of being able to display values with spaces in your enumerations, very nice and useful feature. Edhy Rijo Edited 12 Years Ago by Edhy Rijo
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Terry Bottorff	Terry Bottorff posted 12 Years Ago Post Details Share Post
Group: Forum Members Posts: 448, Visits: 12K	Edhy your code worked great. Thank you so much. But on my form if a person selects Check from the ComboBox how does one figure what value the selected enumeration has? I'm sure there must be a way but I can not seem to get the correct syntax. This will give me the Text but I can not then change it to its corresponding value. Me.cbxpaytypes.SelectedValue.ToString TIA.
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Edhy Rijo	E Edhy Rijo posted 12 Years Ago Post Details Share Post
E Group: StrataFrame Users Posts: 2.4K, Visits: 23K	You are welcome Terry. But on my form if a person selects Check from the ComboBox how does one figure what value the selected enumeration has? If the combobox is binded to a field via the BindingField and BusinessObject properties, then whenever an item is selected from the combobox, this bo.Field will contain the value of the enumeration, in your case will be the number 2. If the combobox is not binded, then simply cast its SelectedValue to the enum type and do your validation. Something like this: Dim bEnum As PayTypes = CType(Me.cbxpaytypes.SelectedValue, PayTypes) Select Case bEnum Case PayTypes.Cash MessageBox.Show("You selected cash") Case PayTypes.Check MessageBox.Show(String.Format("You selected {0}", MicroFour.StrataFrame.Tools.Common.GetEnumDisplayValue(bEnum))) Case PayTypes.Other MessageBox.Show("You selected Other") End Select Edhy Rijo Edited 12 Years Ago by Edhy Rijo
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Terry Bottorff	Terry Bottorff posted 12 Years Ago Post Details Share Post
Group: Forum Members Posts: 448, Visits: 12K	Thanks Edhy that will work. I tried using Ctype but since I don't exactly have all the experience I need I just could not get the syntax correct. Once I saw it, it made sense but I could not produce it. I think my problem was I did not know what type I was trying to convert to what type. Again thank you so much for such great help.
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