Latest Contributions by MikeMillerGIS

I posted an updated version that handles IsNull a little better.  I tested you equation you sent me and it works if you remove the YEAR() part.  A IIF statement in VB evaluated both true and false parts, so you cannot pass a null in and define a process on it.  Article explaining the IIF statement - http://msdn.microsoft.com/en-us/library/27ydhh0d(v=vs.80).aspx Beta Version - http://forums.arcgis.com/threads/20000-Beta-Versions ... View more

You cannot set a non string field to an empty string.  Even an empty string is a string.  If you are trying to set a value as null, I am not sure you can.  We would need to translate a value you entered as null to a true null value.  Would you want use to translate <Null> to null? ... View more

Can you download the beta and try that?  I fixed a bug that might be the cause of your issue. ... View more

After we translate the fields to values, we pass the expression to the MSScriptControl.ScriptControlClass object.  I think you want to us the isNull expression, so like below: IIF(isNull([FIELD]),TrueValue,FalseValue) ... View more

You can download them here http://blogs.esri.com/Dev/blogs/waterutilities/attachment/4025.ashx ... View more

Are you looking to model a treatment plant or just represent the plant as a location in the distribution model?  If you would like to model the plant, take a look at the water and sewer treatment plant models. http://support.esri.com/en/downloads/datamodel/detail/16 ... View more

Sounds great, I think you will really like the new tools in 10.  Let us know how we can help. ... View more

I added the tool tips.  You can find the new version here: http://forums.arcgis.com/threads/20000-Beta-Versions?p=91320&viewfull=1#post91320 ... View more

I will take a look and see if I can add them if they are not there. ... View more

zyndak,   The Attribute Assistant in the Infrastructure editing tempalte has tools to help you.  There are tools to auto draw the sewer lines and tools to auto attribute those lines with the ID's from the manholes based on the From-To nodes. You can find the template on the galleries page. http://help.arcgis.com/en/waterutilities/gallery.html ... View more

Are the Isolation valves in the same layer as rest of the valves in the system?  Are they Enabled? ... View more

Away for thanksgiving! This is a known issue.  The trace does not work on pipe segment connected to the source without a valve between the trace location and the source.  It is on the list of todo's. ... View more

You will need to generate the main lines off some point of reference.  If you can locate the valves, then draw the mains from valve to valve following the road ways, other than that, I am not really sure.  Once you have the mains, there are automated tools to connect meters and hydrants to the mains through laterals. ... View more

Here are some tools that can export different views of a GDB. GDB Diagrammer http://arcscripts.esri.com/details.asp?dbid=15166 GDB Designer http://arcscripts.esri.com/details.asp?dbid=13484 XRay http://arcscripts.esri.com/details.asp?dbid=15119 GDBT http://www.esri.com/software/arcgis/extensions/gdbt/index.html ... View more

Sounds like a permission issue to the registry to me.  Either the key preloadVBA does not exist or you do not have permissions to change it.  Please try getting administrator rights to your machine and try the install.  Also, what version of ArcGIS do you have installed? I am going to move your post to the ArcHydro forum, they are best suited to help you out with Hec GeoHMS. ... View more