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    <p>This is how I accomplished being able to sort on multiple columns, and being able to sort each column as a number, or as text.</p> <p>First use this class:</p> <pre><code>class Sorter : System.Collections.IComparer { public int Column = 0; public System.Windows.Forms.SortOrder Order = SortOrder.Ascending; public int Compare(object x, object y) // IComparer Member { if (!(x is ListViewItem)) return (0); if (!(y is ListViewItem)) return (0); ListViewItem l1 = (ListViewItem)x; ListViewItem l2 = (ListViewItem)y; if (l1.ListView.Columns[Column].Tag == null) { l1.ListView.Columns[Column].Tag = "Text"; } if (l1.ListView.Columns[Column].Tag.ToString() == "Numeric") { float fl1 = float.Parse(l1.SubItems[Column].Text); float fl2 = float.Parse(l2.SubItems[Column].Text); if (Order == SortOrder.Ascending) { return fl1.CompareTo(fl2); } else { return fl2.CompareTo(fl1); } } else { string str1 = l1.SubItems[Column].Text; string str2 = l2.SubItems[Column].Text; if (Order == SortOrder.Ascending) { return str1.CompareTo(str2); } else { return str2.CompareTo(str1); } } } } </code></pre> <p>In your form's constructor, set the sorter like this:</p> <pre><code>lvSeries.ListViewItemSorter = new Sorter(); </code></pre> <p>Then handle the ColumnClick even of your listview control like this:</p> <pre><code>private void lvSeries_ColumnClick(object sender, ColumnClickEventArgs e) { Sorter s = (Sorter)lvSeries.ListViewItemSorter; s.Column = e.Column; if (s.Order == System.Windows.Forms.SortOrder.Ascending) { s.Order = System.Windows.Forms.SortOrder.Descending; } else { s.Order = System.Windows.Forms.SortOrder.Ascending; } lvSeries.Sort(); } </code></pre> <p>This is all dependent on the Tag property of each column either being set to "Numeric" or not, so the sorter knows how to sort.</p> <p>In the above example I cast the values as floats when numeric, you may want to change that to int.</p>
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    1. POhow do I sort Integers in a listview
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    1. USNeil N
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    1. CO@Neil: It sorts them as text by default. E.g. 100 comes before 3. However, you can sort int's properly with custom ListViewItemSorter.
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      1. USJosip Medved
    2. COAhh thats right. string is the default type.
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    3. COI followeed the example at http://support.microsoft.com/kb/319401 but it still does not sort the integers properly.Wrt text, How do you set up the default column to sort. It sorts just fine on column 1 but I cant find the property to set for the column to sort on.
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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