Populate Treeview Not Using Recursive Logic
Hello everyone,
I have some data (recordset) that looks like this...there are a number of other columns that have descriptions and totals for the job, phase and task, however, they are just filler columns. The 3 columns that I would like the tree built on are listed.
Job # Phase Task
----------- ----- -----
IMP S NULL NULL
IMP1 NULL NULL
IMP3 00000 00010
IMP3 00000 00020
IMP3 00000 00030
IMP3 00000 00040
IMP3 00000 00050
IMP3 00000 00060
IMP3 00000 00127
IMP3 00000 00180
IMP3 00000 00499
IMP3 00500 00520
IMP3 00500 00750
IMP3 00500 00970
IMP3 00500 00990
IMP3 01000 01010
IMP3 01000 01070
IMP9 NULL NULL
How do I put this into a tree view. Notice there is no recusive logic in this table. I've populated another tree view control using recusive logic code which calls a procedure until the tree is populated. That seems simple compared to this...Not sure what I'm missing.
I can't seem to figure this one out. I've been looking for documentation on the tree view, but the help file is no where to be found.
I was using this code from rockiroads that was posted a while back, but his only had two levels and not three.
Thanks in advance,
Mike
I have some data (recordset) that looks like this...there are a number of other columns that have descriptions and totals for the job, phase and task, however, they are just filler columns. The 3 columns that I would like the tree built on are listed.
Job # Phase Task
----------- ----- -----
IMP S NULL NULL
IMP1 NULL NULL
IMP3 00000 00010
IMP3 00000 00020
IMP3 00000 00030
IMP3 00000 00040
IMP3 00000 00050
IMP3 00000 00060
IMP3 00000 00127
IMP3 00000 00180
IMP3 00000 00499
IMP3 00500 00520
IMP3 00500 00750
IMP3 00500 00970
IMP3 00500 00990
IMP3 01000 01010
IMP3 01000 01070
IMP9 NULL NULL
How do I put this into a tree view. Notice there is no recusive logic in this table. I've populated another tree view control using recusive logic code which calls a procedure until the tree is populated. That seems simple compared to this...Not sure what I'm missing.
I can't seem to figure this one out. I've been looking for documentation on the tree view, but the help file is no where to be found.
I was using this code from rockiroads that was posted a while back, but his only had two levels and not three.
Thanks in advance,
Mike
ASKER
I was looking for something a little more difinitive. I was able to get it to work, but there has to be an easier way. Here is my code.
Me.tvStructure.Nodes.Clear
'Build the Root Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If rstTemp("Job #") <> strRootNode Then
Me.tvStructure.Nodes.Add , , "Job # " & rstTemp("Job #"), rstTemp("Job #") & " " & rstTemp("Job Name") & " " & rstTemp("Job Total") & " " & rstTemp("Township Total")
End If
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
'Build the First Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Phase") <> strFirstNode) And (IsNull(rstTemp("Phase")) = False And rstTemp("Phase") <> strFirstNode) Then
Me.tvStructure.Nodes.Add "Job # " & rstTemp("Job #"), tvwChild, "Phase " & rstTemp("Phase"), rstTemp("Phase") & " " & rstTemp("Phase Description") & " " & rstTemp("Phase Total") & " " & rstTemp("Township Phase Total")
End If
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
strFirstNode = ""
'Build the Second Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Task") <> strFirstNode) And (IsNull(rstTemp("Task")) = False And rstTemp("Task") <> strSecondNode) Then
Me.tvStructure.Nodes.Add "Phase " & rstTemp("Phase"), tvwChild, "Task " & rstTemp("Task"), rstTemp("Task") & " " & rstTemp("Task Description") & " " & rstTemp("Task Total") & " " & rstTemp("Township Task Total")
End If
strSecondNode = Nz(rstTemp("Task"), "None")
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
Me.tvStructure.Nodes.Clear
'Build the Root Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If rstTemp("Job #") <> strRootNode Then
Me.tvStructure.Nodes.Add , , "Job # " & rstTemp("Job #"), rstTemp("Job #") & " " & rstTemp("Job Name") & " " & rstTemp("Job Total") & " " & rstTemp("Township Total")
End If
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
'Build the First Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Phase") <> strFirstNode) And (IsNull(rstTemp("Phase")) = False And rstTemp("Phase") <> strFirstNode) Then
Me.tvStructure.Nodes.Add "Job # " & rstTemp("Job #"), tvwChild, "Phase " & rstTemp("Phase"), rstTemp("Phase") & " " & rstTemp("Phase Description") & " " & rstTemp("Phase Total") & " " & rstTemp("Township Phase Total")
End If
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
strFirstNode = ""
'Build the Second Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Task") <> strFirstNode) And (IsNull(rstTemp("Task")) = False And rstTemp("Task") <> strSecondNode) Then
Me.tvStructure.Nodes.Add "Phase " & rstTemp("Phase"), tvwChild, "Task " & rstTemp("Task"), rstTemp("Task") & " " & rstTemp("Task Description") & " " & rstTemp("Task Total") & " " & rstTemp("Township Task Total")
End If
strSecondNode = Nz(rstTemp("Task"), "None")
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
hmm..
pseudo code
make sure your rs is odered by Job # and Phase
while not rs.eof
sRoot = rs("job")
Add parent node
while sRoot = rs("job")
Add first child
sChile = rs("phase")
while rs("phase") = sChild
Add second child
rs.movenext
wend
rs.movenext
wend
rs.movenext
wend
just one loop
????
pseudo code
make sure your rs is odered by Job # and Phase
while not rs.eof
sRoot = rs("job")
Add parent node
while sRoot = rs("job")
Add first child
sChile = rs("phase")
while rs("phase") = sChild
Add second child
rs.movenext
wend
rs.movenext
wend
rs.movenext
wend
just one loop
????
ASKER
I was thinking along those lines, but I couldn't sus out the logic...so I broke it down into 3 groups. Maybe my brain is wired funny...but the more complicated and convoluted the solution...the essier it is for me to understand....LOL
Mike
Mike
i think you'd also need
Comment from flavo
Date: 11/24/2004 08:13AM EST
ID: 12660098
Your Comment
Mike,
Seen the MSDN help?
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconusingtreeviewcontrol.asp
&
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconusingtreeviewcontrol.asp
Comment from Data-Man
Date: 11/24/2004 08:21AM EST
ID: 12660154
Author Comment
I was looking for something a little more difinitive. I was able to get it to work, but there has to be an easier way. Here is my code.
Me.tvStructure.Nodes.Clear
'Build the Root Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If rstTemp("Job #") <> strRootNode Then
Me.tvStructure.Nodes.Add , , "Job # " & rstTemp("Job #"), rstTemp("Job #") & " " & rstTemp("Job Name") & " " & rstTemp("Job Total") & " " & rstTemp("Township Total")
End If
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
'Build the First Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Phase") <> strFirstNode) And (IsNull(rstTemp("Phase")) = False And rstTemp("Phase") <> strFirstNode) Then
Me.tvStructure.Nodes.Add "Job # " & rstTemp("Job #"), tvwChild, "Phase " & rstTemp("Phase"), rstTemp("Phase") & " " & rstTemp("Phase Description") & " " & rstTemp("Phase Total") & " " & rstTemp("Township Phase Total")
End If
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
strFirstNode = ""
'Build the Second Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Task") <> strFirstNode) And (IsNull(rstTemp("Task")) = False And rstTemp("Task") <> strSecondNode) Then
Me.tvStructure.Nodes.Add "Phase " & rstTemp("Phase"), tvwChild, "Task " & rstTemp("Task"), rstTemp("Task") & " " & rstTemp("Task Description") & " " & rstTemp("Task Total") & " " & rstTemp("Township Task Total")
End If
strSecondNode = Nz(rstTemp("Task"), "None")
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
Comment from flavo
Date: 11/24/2004 08:27AM EST
ID: 12660195
Your Comment
hmm..
pseudo code
make sure your rs is odered by Job # and Phase
while not rs.eof
sRoot = rs("job")
Add parent node
while sRoot = rs("job") and not rs.eof
Add first child
sChile = rs("phase")
while rs("phase") = sChild and not rs.eof
Add second child
rs.movenext
wend
rs.movenext
wend
rs.movenext
wend
to stop errors (ie looping too far - past the end of the rs)
Comment from flavo
Date: 11/24/2004 08:13AM EST
ID: 12660098
Your Comment
Mike,
Seen the MSDN help?
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconusingtreeviewcontrol.asp
&
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconusingtreeviewcontrol.asp
Comment from Data-Man
Date: 11/24/2004 08:21AM EST
ID: 12660154
Author Comment
I was looking for something a little more difinitive. I was able to get it to work, but there has to be an easier way. Here is my code.
Me.tvStructure.Nodes.Clear
'Build the Root Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If rstTemp("Job #") <> strRootNode Then
Me.tvStructure.Nodes.Add , , "Job # " & rstTemp("Job #"), rstTemp("Job #") & " " & rstTemp("Job Name") & " " & rstTemp("Job Total") & " " & rstTemp("Township Total")
End If
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
'Build the First Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Phase") <> strFirstNode) And (IsNull(rstTemp("Phase")) = False And rstTemp("Phase") <> strFirstNode) Then
Me.tvStructure.Nodes.Add "Job # " & rstTemp("Job #"), tvwChild, "Phase " & rstTemp("Phase"), rstTemp("Phase") & " " & rstTemp("Phase Description") & " " & rstTemp("Phase Total") & " " & rstTemp("Township Phase Total")
End If
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
rstTemp.MoveFirst
strRootNode = ""
strFirstNode = ""
'Build the Second Level Nodes
Do While Not rstTemp.EOF
'If any of the name changes then we have a new parent
If (rstTemp("Job #") <> strRootNode Or rstTemp("Task") <> strFirstNode) And (IsNull(rstTemp("Task")) = False And rstTemp("Task") <> strSecondNode) Then
Me.tvStructure.Nodes.Add "Phase " & rstTemp("Phase"), tvwChild, "Task " & rstTemp("Task"), rstTemp("Task") & " " & rstTemp("Task Description") & " " & rstTemp("Task Total") & " " & rstTemp("Township Task Total")
End If
strSecondNode = Nz(rstTemp("Task"), "None")
strFirstNode = Nz(rstTemp("Phase"), "None")
strRootNode = rstTemp("Job #")
rstTemp.MoveNext
Loop
Comment from flavo
Date: 11/24/2004 08:27AM EST
ID: 12660195
Your Comment
hmm..
pseudo code
make sure your rs is odered by Job # and Phase
while not rs.eof
sRoot = rs("job")
Add parent node
while sRoot = rs("job") and not rs.eof
Add first child
sChile = rs("phase")
while rs("phase") = sChild and not rs.eof
Add second child
rs.movenext
wend
rs.movenext
wend
rs.movenext
wend
to stop errors (ie looping too far - past the end of the rs)
ASKER CERTIFIED SOLUTION
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You got it :-)
Seen the MSDN help?
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconusingtreeviewcontrol.asp
&
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconusingtreeviewcontrol.asp