ListView AutoResizeColumns based on both Column content and header

Question

we use this two methods to adjust column length based on Column content and header resp.

ListView.AutoResizeColumns(ColumnHeaderAutoResizeStyle.ColumnContent); ListView.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize);

But how to adjust based on both? i.e. adjust to the longest length for header and column content.

Answer 1

lvw.Columns[0].Width = -2

See remarks in MSDN for details: http://msdn.microsoft.com/en-us/library/system.windows.forms.columnheader.width.aspx

Also note that MSDN says that 'To autosize to the width of the column heading, set the Width property to -2.', but actually it works for column heading AND column contents.

Here is a code to prove that:

    lvw.Columns.Add(new String('x', 25));   // short header
    lvw.Items.Add(new String('x', 100));    // long content

    lvw.Columns[0].Width = -2;
    // in result column width will be set to fit content

Answer 2

As answered here, calling both resizing options do the job :

myListView.AutoResizeColumns(ColumnHeaderAutoResizeStyle.ColumnContent);
myListView.AutoResizeColumns(ColumnHeaderAutoResizeStyle.HeaderSize);

Answer 3

This is what I use to adjust column width to both content and header:

public static void autoResizeColumns(ListView lv)
{
    lv.AutoResizeColumns(ColumnHeaderAutoResizeStyle.ColumnContent);
    ListView.ColumnHeaderCollection cc = lv.Columns;
    for (int i = 0; i < cc.Count; i++)
    {
        int colWidth = TextRenderer.MeasureText(cc[i].Text, lv.Font).Width + 10;
        if (colWidth > cc[i].Width)
        {
            cc[i].Width = colWidth;
        }
    }
}

Example use:

autoResizeColumns(listView1);

The method isn't that well tested, but at least it works in the context I'm using it in.