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Custom control DataSet bind issue

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Dear All,

I created one custom control, which should takes DataTable
as the datasource.

I can set properties of the control, including datasource,
but to my surprise, only those string properties will be
saved, datasource property always disappears after build.

I tried to put datatable name in the control's html
property field. Got casting error.

And at the end, I used "<%# MyDataTable %>" syntax to make
the data passing works. Again, this can only be done in
HTML mode.

Just wondering why that datasource binding doesn't work in
design mode. Can we take a peak at the source code of the
asp default components?

Thanks in advance.


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