Changeset 14432 for trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Views/3.4/TreeEditDialogs/SymbolicExpressionTreeVariableNodeEditDialog.cs

Timestamp:

11/30/16 16:33:05 (7 years ago)

Author:

bburlacu

Message:

#2710: Offer the user the option to provide the variable name when the symbol does not contain a list of available variable names. In this case the combo box is replaced by a text box.

File:

• trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Views/3.4/TreeEditDialogs/SymbolicExpressionTreeVariableNodeEditDialog.cs (modified) (5 diffs)

trunk/sources/HeuristicLab.Problems.DataAnalysis.Symbolic.Views/3.4/TreeEditDialogs/SymbolicExpressionTreeVariableNodeEditDialog.cs

@@ -22 +22 @@
 using System;
 using System.ComponentModel;
+using System.Linq;
 using System.Text;
 using System.Windows.Forms;
@@ -40 +41 @@
     }
 
+    public string SelectedVariableName {
+      get { return variableNamesCombo.Visible ? variableNamesCombo.Text : variableNameTextBox.Text; }
+    }
+
     public VariableNodeEditDialog(ISymbolicExpressionTreeNode node) {
       InitializeComponent();
       oldValueTextBox.TabStop = false; // cannot receive focus using tab key
-
       NewNode = (VariableTreeNode)node; // will throw an invalid cast exception if node is not of the correct type
       InitializeFields();
@@ -57 +61 @@
         variableNameLabel.Visible = true;
         variableNamesCombo.Visible = true;
-        foreach (var name in variableTreeNode.Symbol.VariableNames) variableNamesCombo.Items.Add(name);
-        variableNamesCombo.SelectedIndex = variableNamesCombo.Items.IndexOf(variableTreeNode.VariableName);
+        if (variableTreeNode.Symbol.VariableNames.Any()) {
+          foreach (var name in variableTreeNode.Symbol.VariableNames)
+            variableNamesCombo.Items.Add(name);
+          variableNamesCombo.SelectedIndex = variableNamesCombo.Items.IndexOf(variableTreeNode.VariableName);
+          variableNamesCombo.Visible = true;
+          variableNameTextBox.Visible = false;
+        } else {
+          variableNamesCombo.Visible = false;
+          variableNameTextBox.Visible = true;
+        }
       }
     }
@@ -93 +105 @@
     #region combo box validation and events
     private void variableNamesCombo_Validating(object sender, CancelEventArgs e) {
+      if (variableNamesCombo.Items.Count == 0) return;
       if (variableNamesCombo.Items.Contains(variableNamesCombo.SelectedItem)) return;
       e.Cancel = true;
@@ -119 +132 @@
     private void OnDialogValidated(object sender, EventArgs e) {
       double weight = double.Parse(newValueTextBox.Text);
-      var variableName = (string)variableNamesCombo.SelectedItem;
       // we impose an extra validation condition: that the weight/value be different than the original ones
+      var variableName = SelectedVariableName;
       if (variableTreeNode.Weight.Equals(weight) && variableTreeNode.VariableName.Equals(variableName)) return;
       variableTreeNode.Weight = weight;