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Combo box

Defining a parameter with a combo box means providing the user of the PythonPart a finite number of possible options to choose from. The <Value> tag defines the default value and the <ValueList> tag defines the possible values of the parameter, separated by | character.

Value types

String

Parameter String ComboBox

<Parameter>
    <Name>StringComboBox</Name>
    <Text>StringComboBox</Text>
    <Value>Text1</Value>
    <ValueList>Text1|Text2|Text3</ValueList>
    <ValueType>StringComboBox</ValueType>
</Parameter>

Integer

Parameter Integer ComboBox

<Parameter>
    <Name>IntegerComboBox</Name>
    <Text>IntegerComboBox</Text>
    <Value>1</Value>
    <ValueList>1|2|3|4</ValueList>
    <ValueType>IntegerComboBox</ValueType>
</Parameter>

Double

Parameter Double ComboBox

<Parameter>
    <Name>DoubleComboBox</Name>
    <Text>DoubleComboBox</Text>
    <Value>1</Value>
    <ValueList>1.0|2.0|3.0|4.0</ValueList>
    <ValueType>DoubleComboBox</ValueType>
</Parameter>

Length 1

Parameter Length ComboBox

<Parameter>
    <Name>LengthComboBoxValue</Name>
    <Text>LengthComboBox</Text>
    <Value>1000</Value>
    <ValueList>1000|2000|3000|4000</ValueList>
    <ValueType>LengthComboBox</ValueType>
</Parameter>

Angle 1

Parameter Angle ComboBox

<Parameter>
    <Name>AngleComboBoxValue</Name>
    <Text>AngleComboBox</Text>
    <Value>45</Value>
    <ValueList>0|45|90|180</ValueList>
    <ValueType>AngleComboBox</ValueType>
</Parameter>

Picture

Just as the Picture ComboBox, but instead of pointing to an image file you point to an Allplan internal picture resource.

Parameter Picture Resource ComboBox

<Parameter>
    <Name>EdgeOffsetType</Name>
    <Text>Integer value list</Text><!--(1)!-->
    <Value>0</Value><!--(2)!-->
    <ValueList>0|1|2|3|4</ValueList><!--(3)!-->
    <ValueTextList><!--(4)!-->Zero at start|Major value at start|Start equal end|Major value at end|Zero at end</ValueTextList>
    <ValueList2>12151|12147|12149|12153|12145</ValueList2><!--(5)!-->
    <ValueType>PictureResourceComboBox</ValueType>
</Parameter>
  1. This text appears on the left side of the combo box
  2. This is the default value

  3. These integer values correspond with the entries in the box. They must be separated by |. Alternatively, use <EnumList> to define options of enumeration classes instead of integers like:

    <EnumList>AllplanArchEle.VerticalOpeningShapeType.eRectangle|
        AllplanArchEle.VerticalOpeningShapeType.eCircle</EnumList>

  4. These texts appear next to the picture and can be localized (learn more here)

  5. Provide the IDs of the picture resources, separated by |. Click on the desired icon below to copy the ID to your clipboard

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    Example on GitHub

    The complete implementation is shown in the example PictureResourceComboBox ( PYP | PY).

    To create a combo box with icons in the list from your own .png files, set the <ValueType> to PictureComboBox.

    Parameter Picture ComboBox

    <Parameter>
    <Name>IntegerValueList</Name>
    <Text>Integer value list</Text><!--(1)!-->
    <Value>1</Value><!--(2)!-->
    <ValueList>1|2|3</ValueList><!--(3)!-->
    <ValueTextList>Value=1|Value=2|Value=3<!--(4)!--></ValueTextList>
    <ValueList2>..\param01.png|..\param02.png|..\param03.png</ValueList2>
    <ValueType>PictureComboBox</ValueType>
</Parameter>
    1. This text appears on the left side of the combo box
    2. This is the default value

    3. These integer values correspond with the entries in the box. They must be separated by |. Alternatively, use <EnumList> to define options of enumeration classes instead of integers like:

      <EnumList>AllplanArchEle.VerticalOpeningShapeType.eRectangle|
        AllplanArchEle.VerticalOpeningShapeType.eCircle</EnumList>

    4. These texts appear next to the picture and can be localized (learn more here)

    5. Provide paths to your .png files separated with a pipe character (|).

    Example on GitHub

    The complete implementation is shown in the example PictureComboBox ( PYP | PY)

    Editable text box

    Editable ComboBox

    It is possible to create a combo box with predefined suggested values, but where the user can still enter his custom value. This custom value is then added into the list of suggested values. This list is saved as a file under the location specified in the <ValueListFile> tag

    <Parameter>
    <Name>EditString</Name>
    <Text>String</Text>
    <Value>Munich</Value>
    <ValueList>London|Munich|Paris</ValueList>
    <ValueType>StringComboBox</ValueType>
    <ValueListFile><!--(1)!-->usr\tmp\PypComboSettings\String.val</ValueListFile>
</Parameter>

    1. You, as a developer, can decide where the file should be saved:

      Location Remarks
      usr Recommended The values are user-specific
      prj The values are project-specific
      std The values are office-specific

      Be careful with the last option, since when working with workgroup manager, non-admin users don't have the rights to write anything in std directory which may cause an error.

    Dynamic value list

    From python code

    To generate the options dynamically, the tag <ValueList> can hold Python code, that creates a string with values separated with |, or a Python list. The Python source code for the condition must be left aligned. Functions from the math package are allowed (by calling math.xxx)

    <ValueList>['Text'+str(value) for value in range(1, 4)]</ValueList> #(1)!
    1. This line of code will create a list like this: Parameter String ComboBox
    <ValueList>
    if HeightDimension == 1:
        return "Text1|Text2|Text3"
    else:
        return "Text4|Text5|Text6"
</ValueList>

    From enumeration

    The values for the tag <ValueList> can be get from the key in enumeration classes, that already exists in the modules of ALLPLAN Python API. This can be done with this line of code:

    <ValueList>"|".join(str(key) for key in AllplanBaseEle.IFC_Version.names.keys())</ValueList>

    Instead of full names of ALLPLAN Python API modules, following keywords can be used:

    Module full name Keyword
    NemAll_Python_AllplanSettings AllplanSettings
    NemAll_Python_BaseElements AllplanBaseEle
    NemAll_Python_BasisElements AllplanBasisEle
    NemAll_Python_Geometry AllplanGeo
    NemAll_Python_IFW_Input AllplanIFW
    NemAll_Python_Reinforcement AllplanReinf
    NemAll_Python_Utility AllplanUtil

    Localization

    The text that appears in the property palette (<Text>), as well as the entries in the string combo box can both be localized by providing additional tags <TextId> and <ValueList_TextIds>

    <Parameter>
    <Name>StringComboBox</Name>
    <Text>StringComboBox</Text>
    <TextId>1001</TextId>
    <Value>Text1</Value>
    <ValueList>Text1|Text2|Text3</ValueList>
    <ValueList_TextIds>1002|1003|1004</ValueList_TextIds>
    <ValueType>StringComboBox</ValueType>
</Parameter>

    Example on GitHub

    For the complete implementation see the example ComboBoxControls ( PYP | PY).

    1. Regarding units the same rules apply for a combo box as they apply for a normal edit control ↩↩

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