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Thread: [RESOLVED] Concatenate two NChar data type columns

  1. #1

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    Resolved [RESOLVED] Concatenate two NChar data type columns

    Dear all,
    I'm trying to bind an added data column to a Combobox.
    Therefore I'm adding a column to the datatable I'm using which is made by the concatenation of two fields. Unfortunately, as the two fields are of type NChar(50) the result is that in the combobox the two fields appear with a lot of empty spaces in between.

    Here below the code I'm using:

    Code:
    Dim Fullname As New DataColumn()
            Fullname.DataType = System.Type.GetType("System.Object")
            Fullname.ColumnName = "Fullname"
            CTO_DataSet.Tbl_CTOAbilitą.Columns.Add("FullName", GetType(String), "Nome + Cognome")
    
            Cmb1.DataSource = CTO_DataSet.Tbl_CTOAbilitą
            Cmb1.DisplayMember = "Fullname"
            Cmb1.ValueMember = "ID"
    For example, let's name field Nome is "Filippo" and Cognome is "Rossi", the result in the combobox is:
    "Filippo Rossi".

    How can I delete the spaces?

    Thanks for the support,
    A.

  2. #2
    #28 for the Yanks coming GaryMazzone's Avatar
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    Re: Concatenate two NChar data type columns

    I would add Trim of the fields in the SQL that you use to generate the data set.
    Sometimes the Programmer
    Sometimes the DBA

    Mazz1

  3. #3

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    Re: Concatenate two NChar data type columns

    Dear GaryMazzone,
    do you mean something like:

    Code:
    "SELECT Id,Codice,LTRIM(RTRIM(Nome)),LTRIM(RTRIM(Cognome)),Anno_di_nascita"
    Thanks,
    A.

  4. #4
    #28 for the Yanks coming GaryMazzone's Avatar
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    Re: Concatenate two NChar data type columns

    Yes... NCHAR data type always store the full size even if it is less
    Sometimes the Programmer
    Sometimes the DBA

    Mazz1

  5. #5

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    Re: Concatenate two NChar data type columns

    Thanks - done and it works!

    A.

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