// Search button is clicked: Traverse the DAG and put results into the Grid
private void SearchButton_Click(object sender, RoutedEventArgs e)
{
// Script in which to embed the lambda written by the user
string MyScript = @"using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Autodesk.Maya.Runtime;
using Autodesk.Maya.OpenMaya;
using Autodesk.Maya;
public class Script
{
delegate bool QueryFunc(MDagPath dp);
public System.Collections.Generic.IEnumerable<MDagPath> Main()
{
var dag = new MCDag();
QueryFunc myLambda = (dagpath) => " + textBox1.Text.Trim() + @";
var elements = from dagpath in dag.DagPaths where myLambda(dagpath) select dagpath;
return elements;
}
}";
// Run it
Object ObjList = Run("C#", MyScript);
// If there was no error
if (ObjList != null)
{
using (new CursorSwitcher(null)) {
try {
ResultGrid.Items.Clear();
} catch {
}
// Get whatever's returned by the script
var ObjEnum = ObjList as IEnumerable <MDagPath>;
// Were some objects returned?
if (!ObjEnum.Any <MDagPath> ())
{
MessageBox.Show("No object returned.", "DAG Explorer", MessageBoxButton.OK, MessageBoxImage.Information);
}
else
{
LinkedList <MayaObject> myList;
HashSet <MayaObjPropId> myProps;
GatherObjects(ObjEnum, out myList, out myProps);
int i;
// Setup the grid data columns if it isn't done already
if (ResultGrid.Columns.Count < 2)
{
i = 0;
DataGridTextColumn col;
foreach (var p in myProps)
{
col = new DataGridTextColumn();
ResultGrid.Columns.Add(col);
col.Header = p.name;
col.Binding = new Binding("[" + i + "]");
i++;
}
}
// Add all the rows, one per object
foreach (var Obj in myList)
{
Object [] arr = new Object [myProps.Count];
i = 0;
foreach (var p in myProps)
{
MayaObjPropVal mopv;
// Search for the property in the object
if (Obj.properties.TryGetValue(p.name, out mopv))
{
arr [i] = mopv.value;
}
else
{
arr [i] = "";
}
i++;
}
ResultGrid.Items.Add(arr);
}
TabControl1.BringIntoView();
tabItem1.IsSelected = true;
}
}
}
}