Changeset 4850 for trunk/sources/HeuristicLab.Data.Views/3.3/StringConvertibleMatrixView.cs

Timestamp:

11/19/10 13:51:45 (13 years ago)

Author:

mkommend

Message:

Improved performance of StringConvertibleMatrixView when dealing with lots of columns (ticket #1283).

File:

• trunk/sources/HeuristicLab.Data.Views/3.3/StringConvertibleMatrixView.cs (modified) (2 diffs)

trunk/sources/HeuristicLab.Data.Views/3.3/StringConvertibleMatrixView.cs

@@ -124 +124 @@
       columnsTextBox.Text = Content.Columns.ToString();
       columnsTextBox.Enabled = true;
+      virtualRowIndizes = Enumerable.Range(0, Content.Rows).ToArray();
+
+      if (Content.Columns == 0 && dataGridView.ColumnCount != Content.Columns && !Content.ReadOnly)
+        Content.Columns = dataGridView.ColumnCount;
+      else {
+        DataGridViewColumn[] columns = new DataGridViewColumn[Content.Columns];
+        for (int i = 0; i < columns.Length; ++i) {
+          var column = new DataGridViewTextBoxColumn();
+          column.FillWeight = 1;
+          columns[i] = column;
+        }
+        dataGridView.Columns.Clear();
+        dataGridView.Columns.AddRange(columns);
+      }
 
       //DataGridViews with rows but no columns are not allowed !
@@ -130 +144 @@
       else
         dataGridView.RowCount = Content.Rows;
-      if (Content.Columns == 0 && dataGridView.ColumnCount != Content.Columns && !Content.ReadOnly)
-        Content.Columns = dataGridView.ColumnCount;
-      else
-        dataGridView.ColumnCount = Content.Columns;
+
 
       ClearSorting();
-
       UpdateColumnHeaders();
       UpdateRowHeaders();