FarPoint Forums

Hello,

Are these related properties ever synchronized at run time? If not, how can I tell which one to use? Also, could the two integer properties be initialized to -1 instead of 0 so that you can tell whether or not a value has acutally been set? Thanks in advance for any ideas and/or suggestions!

Hello,

These properties are used to set what columns in a MultiColumnCombobox are used for writing values back to the editbox (ColumnEdit/ColumnEditName) and tell which columns are bound to which fields in the bound DataSource (DataColumn/DataColumnName). You can use either property to make these settings, but we do not automatically set the other property so you can query using either property. We just give two properties so you can use column index numbers or column names.

These properties have nothing to do with the item selected. So I am not sure about the second part of your inquiry.

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Scott S.
FarPoint Technologies, Inc.

Thanks Scott! It seems to me that you would want to keep them in sync so that you could use them interchangeably. This is especially true since the ColumnEdit and DataColumn properties initialize to 0 instead of -1. Since 0 is a valid column index, you are setting a defacto default. Does the internal code check the Name property first and then the index property second if the Name property is not valid?

Hello,

We use a method GetDataColumnIndex and GetColumnEditIndex to determine what columns are being queried. This method queries the DataColumnName and ColumnEditName properties to see if they are set. If they are set, we find the index of the column using those names. If they are not set, we use the indexes set in DataColumn and ColumnEdit. So, we are probably default ColumnEdit and DataColumn to 0 to have a valid column set. Otherwise there would not be anything bound or anything written to the editbox.

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Scott S.
FarPoint Technologies, Inc.

Thanks Scott!

How would I reference GetDataColumnIndex and GetColumnEditIndex in my own subclassed MutliColumnComboBoxCellType since they provide the exact functionality I am currently doing in my code? Thanks in advance for any ideas and/or suggestions!

Hello,

These methods are not public so you are not able to call them.

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Scott S.
FarPoint Technologies, Inc.

Is ther any reason why they could not be made Public, or at least as Friend or Protected so subclassed code could reference them? Otherwise, I have to write redundant code to do accomplish the exact same purpose.

Hello,

I looked at the source and the function is public. The issue is the class is marked internal, so you can not get at this function.

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Scott S.
FarPoint Technologies, Inc.

Can I use reflection to get them?

Hello,

Yes.

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Scott S.
FarPoint Technologies, Inc.

Which class do they belong to, the Parent Spread, the CellType or the SubEditor? I'm guessing the cell type. Thanks in advance for any ideas and/or suggestions.

Hello,

These methods belong to the SubEditor control.

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Scott S.
FarPoint Technologies, Inc.