How to Edit Elevation (Min and Max) in Section View
@Anonymous, Welocme to the forums! For future posts with code, use the Code button and paste the code into the window provided. This will prevent the forums from placing smiley faces in the code 
The SectionView elevation and offset properties are read only in COM/ActiveX, so cannot be done in lisp. Using the .NET API you are able to set the Automatic/User SPecified toggle for the elevations and offsets, as well as change the values used. I have a similar function I created to set all sectionviews to use the same min/max values, it is written in c# if you are interested in going that route.
Accepted solution
Attached is a compiled DLL in a zip file. After downloading be sure to go to the ZIP file's properties and Unblock the zip, otherwise the extracted dll won't load. Also providing the c# code, which should be valid for C3D 2013-2016.
///
/// Created by Jeff Mishler
/// Quux Software LLC
/// http://www.quuxsoft.com
///
using System;
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Runtime;
using Autodesk.Civil.DatabaseServices;
namespace Civil3D_Misc_Commands.SectionViews
{
public class SectionViews
{
[CommandMethod("SVMinMax")]
public void svminmax()
{
try
{
SVMinMaxcommand();
}
catch
{
Application.DocumentManager.MdiActiveDocument.Editor.WriteMessage("****Uh oh! This command is unable to be used in C3D 2013 or older!****");
}
finally
{
Application.DocumentManager.MdiActiveDocument.Editor.WriteMessage("\nThis Utility brought to you by: Quux Software, creators of the Sincpac-C3D.");
}
}
private void SVMinMaxcommand()
{
Document doc = Application.DocumentManager.MdiActiveDocument;
Editor ed = doc.Editor;
Database db = doc.Database;
double min = Double.MinValue, max = Double.MaxValue;
PromptSelectionOptions ssOpts = new PromptSelectionOptions();
ssOpts.MessageForAdding = "Select SectionViews to adjust Min/Max values:";
ssOpts.MessageForRemoval = "...Select SectionViews to remove from selection:";
ssOpts.RejectObjectsOnLockedLayers = true;
TypedValue[] tv = { new TypedValue(0, "AECC_GRAPH_SECTION_VIEW") };
SelectionFilter filter = new SelectionFilter(tv);
PromptSelectionResult ssRes = ed.GetSelection(ssOpts, filter);
if (ssRes.Status != PromptStatus.OK)
return;
PromptDoubleOptions dOpts = new PromptDoubleOptions("\nEnter new Minimum elevation for sectionviews:");
dOpts.AllowArbitraryInput = false;
PromptDoubleResult dRes = ed.GetDouble(dOpts);
if (dRes.Status != PromptStatus.OK)
return;
min = dRes.Value;
dOpts.Message = "\nEnter new Maximum elevation for sectionviews:";
dOpts.DefaultValue = min + 1;
dOpts.UseDefaultValue = true;
dRes = ed.GetDouble(dOpts);
if (dRes.Status != PromptStatus.OK)
return;
max = dRes.Value;
while (max < min)
{
dOpts.Message = "...Max must be higher than Min, try again:";
dRes = ed.GetDouble(dOpts);
if (dRes.Status != PromptStatus.OK)
return;
max = dRes.Value;
}
using (Transaction tr = HostApplicationServices.WorkingDatabase.TransactionManager.StartTransaction())
{
foreach (ObjectId id in ssRes.Value.GetObjectIds())
{
SectionView sv = (SectionView)id.GetObject(OpenMode.ForWrite);
if (sv.IsElevationRangeAutomatic)
sv.IsElevationRangeAutomatic = false;
sv.ElevationMax = max;
sv.ElevationMin = min;
}
tr.Commit();
}
}
}
}
@john.uhden the 'normal' method is to allow automatic elevations and setting the grid padding in the SectionView Style to a smaller value. To modify the ElevMin/Max values requires 2 things...the IsElevationRangeAutomatic property must be set to false and you must be using the .NET API since the Elev* properties in COM are read only and that needed property isn't even available:
http://docs.autodesk.com/CIV3D/2012/ENU/API_Reference_Guide/com/AeccXLandLib__IAeccSectionView.htm