CODEWITHSUNDEEP
c++windowswinapilistview
Andreas Bonini
Andreas Bonini

Reputation: 44742

Width of listview columns not respected

I have a listview where I add several columns:

LVCOLUMN column;

column.mask = LVCF_FMT | LVCF_TEXT | LVCF_WIDTH | LVCF_SUBITEM | LVCF_IDEALWIDTH;
column.fmt = LVCFMT_LEFT;

for(size_t i = 0; i < columns.size(); ++i)
{
    const string columnName = Format("{0}. {1} ({2})", i + 1, columns[i].Name.empty() ? "?" : columns[i].Name, boost::to_lower_copy(columns[i].GetTypeName()));

    column.iSubItem = i;
    column.pszText = (char *)columnName.c_str();
    column.cchTextMax = columnName.length();
    column.cx = column.cxIdeal = (columns[i].Type == COLUMN_TYPE_STRING) ? 130 : 100;
    ListView_InsertColumn(mListView, i, &column);
    ++mColumnCount;
}

Notice in particular column.cx = column.cxIdeal = (columns[i].Type == COLUMN_TYPE_STRING) ? 130 : 100;.

This is not respected; this is how the listview looks like:

enter image description here

It's also worth mentioning that without targeting Windows Common Controls 6.0 in the manifest file the code works perfectly and the columns have the correct width.

EDIT: Setting cxMin to the width works, but then I can't manually resize the columns so that they have less width (at runtime).

Upvotes: 1

Views: 2535

Answers (1)

Hans Passant
Hans Passant

Reputation: 941347

Vista and up has auto-sizing for columns for version 6. Its exact behavior isn't documented well. Either drop LVCF_IDEALWIDTH or use LVCF_MINWIDTH and set the cxMin member.

Upvotes: 3

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