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POqlistview with checkboxes using custom model
 

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    <p>I have subclassed filesystemmodel to include checkboxes in listview , which is working fine. My problem is whenever I click an item the text of that item disappears and when i click another item the text of previously selected item becomes visible. Can anyone please tell me the reason behind it.</p> <p>Here is the code i implemented.</p> <p>Please tell me what i am missing here, Thanks</p> <pre><code>#include "custommodel.h" #include &lt;iostream&gt; using namespace std; CustomModel::CustomModel() { } QVariant CustomModel::data(const QModelIndex&amp; index, int role) const { QModelIndex parent=this-&gt;parent(index); if(role == Qt::DecorationRole) { if(this-&gt;filePath(parent)=="") { return QIcon(":/Icons/HardDisk.png"); } else if(this-&gt;isDir(index)) { QDir dir(this-&gt;filePath(index)); QFileInfoList files = dir.entryInfoList(QDir::NoDotAndDotDot | QDir::Files | QDir::Dirs); for(int file = 0; file &lt; files.count(); file++) if(files.count()&gt;0) return QIcon(":/Icons/FullFolder.png"); if(files.count()==0) return QIcon(":/Icons/EmptyFolder.png"); } else{ QFileInfo fi( this-&gt;filePath(index)); QString ext = fi.suffix(); if(ext=="jpeg"||ext=="jpg"||ext=="png"||ext=="bmp") return QIcon(filePath(index)); } } if (role == Qt::CheckStateRole &amp;&amp; !(this-&gt;filePath(parent)=="")) return checklist.contains(index) ? Qt::Checked : Qt::Unchecked; return QFileSystemModel::data(index, role); } Qt::ItemFlags CustomModel::flags(const QModelIndex&amp; index) const { return QFileSystemModel::flags(index)| Qt::ItemIsUserCheckable; } bool CustomModel::setData(const QModelIndex&amp; index, const QVariant&amp; value, int role) { if (role == Qt::CheckStateRole) { if (value == Qt::Checked) checklist.insert(index); else checklist.remove(index); emit dataChanged(index, index); return true; } return QFileSystemModel::setData(index, value, role); } </code></pre>
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    1. COPlease guys, Any suggestions???
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