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Control Replacement Primer
Upgrading a control has three types
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of work:
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1) upgrading the object model and members in logic
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Good news is that this is the same as upgrading a standard (i.e. non-control) API
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If a control is being migrated to a component, do not use role=control
2) upgrading event handlers
- event arg types
- event name changes
- event handler arguiments -- these are statements added to the event handler to setup the old style event args as local variables in the handler.
| Code Block |
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<event id="ItemClick" netName="ItemClick" migStatus="mscomctl" role="event"
netHandler="System.Windows.Forms.ListViewItemSelectionChangedEventHandler"
netArgs="ListViewItemSelectionChangedEventArgs" migPattern="ItemSelectionChanged" >
<argument id="item" type="ListItem" status="ByVal" migPattern="%1d = e.Item" />
</event> |
3) Designer code -- property initialization
- these are specifications for what properties to set in teh designer.cs code file adn how to set them
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| Code Block |
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<migClass id="NetControl.fpDoubleSingle" migName="NumericUpDown" parent="fpDoubleSingle">
<property id="BackColor" type="OLE_COLOR"
value="IfpDoubleSingle.BackColor"
nPram="3"
migPattern="System.Drawing.Color.FromArgb(%3d, %2d, %1d)"
default="System.Drawing.SystemColors.WindowText"
/> |
id = name of .NET property to write in designer.cs file
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default = the appropriate default for the property
type, nPram, migPattern = literals