QTP Dynamic Descriptive Programming in Terminal Emulator Error

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Hi,
I have tried descriptive programming(DP) in QTP using terminal emulator. My code works when I code my script in static, but it fails when I code it in dynamic. It is unable to detect the field in the emulator even if after creating a dummy object and passing its values. Please help.


Static Descriptive Programming (This works):

TeWindow("short name:= A").TeScreen("input field count:=5").TeField("attached text:=USER").Set "USER"
TeWindow("short name:= A").TeScreen("input field count:=5").TeField("attached text:=Password").SetSecure "528ecce84d9dac2ab9ac05806f4c"
TeWindow("short name:= A").TeScreen("input field count:=5").SendKey TE_ENTER


Dynamic Descriptive Programming (This fails):

Set oTeWindow=description.Create
oTeWindow("micClass").value="TeWindow"
oTeWindow("protocol").value="5250"

Set oTeScreen=description.Create
oTeScreen("micClass").value="TeScreen"
oTeScreen("input field count").value="5"

Set oUsrEdit=description.Create
oUsrEdit("micClass").value="TeField"
oUsrEdit("attached text").value="User"

Set oPwdEdit=description.Create
oPwdEdit("micClass").value="TeField"
oPwdEdit("attached text").value="Password"

TeWindow(oTeWindow).TeScreen(oTeScreen).TeField(oUsrEdit).Set "USER"
TeWindow(oTeWindow).TeScreen(oTeScreen).TeField(oPwdEdit).SetSecure "528ecce84d9dac2ab9ac05806f4c"
TeWindow(oTeWindow).TeScreen(oTeScreen).SendKey TE_ENTER

Error message:
Cannot find the "[ TeField ]" object's parent "[ TeWindow ]" (class TeWindow). Verify that parent properties match an object currently displayed in your application.
Line (21): "TeWindow(oTeWindow).TeScreen(oTeScreen).TeField(oUsrEdit).Set "USER"".