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1st PostBack only: SelectedIndexChanged events fire AND GridView & ReadOnly controls disappear

Posted By:      Posted Date: September 10, 2010    Points: 0   Category :ASP.Net
On initial load of the page, everything is visible & runs correct. On the first PostBack fired by any one of my DDLs, RadioBtns, LinkBtns that have the AutoPostBack=true property, then ddlPriority_SelectedIndexChanged & ddlPendUserReqType_SelectedIndexChanged events always fire (and only from these DDLs, the others don't fire inappropriately), even when neither of those controls had been selected. Then my GridView gridPendRoles disappears, unless a DataSource & DataBind() is forced. Any ReadOnly controls (lblTicketID, txbxInsertTicketDate, lblPendUserID) will also loose their data/text in the first PostBack. However, every PostBack following will not inappropriately fire events. And as long as a DataSource was set & DataBind() called a 2nd time at any time during any PostBack, the GridView will stay visible with correct data displayed. Again, as long as the ReadOnly controls have their data/text set a 2nd time during any PostBack, they too will retain their data/text for every following PostBack. I've tried debugging with Trace on & walked thru everything very thoroughly, but still cannot catch any reasons why this would occur. And since I am using the Delete & Edit command linkBtns in my GridView, I can't just force a DataSource & DataBind() on every PostBack, or I would loose those Row

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