Preventing editing item labels in tree view


This article was contributed by Marius Bakelis.

If we have created tree view control with the TVS_EDITLABELS style we can edit all its items labels. But sometimes we do need that not all tree view control items labels could be editable. So we must prevent editing of item labels we don't want to be editable. We can override the PreTranslateMessage() function:



BOOL CTreeCtrlX::PreTranslateMessage(MSG* pMsg) 
{
    if( pMsg->message == WM_LBUTTONDOWN )
    {
		UINT		flag = TVHT_ONITEMLABEL;
		CPoint		pt = pMsg->pt;

		ScreenToClient(&pt);
		
		if( HitTest( pt, &flag ) == GetSelectedItem() 
			// && there you can check is the item which cannot be editable
			)
		{
			SetFocus();	//We must set focus to the tree view control
					//becouse it can have no focus

			return TRUE ;   // DO NOT process further
		}
    }

    return CTreeCtrl::PreTranslateMessage(pMsg);
}




Comments

  • What To Do About nike Before Time Expires

    Posted by Dethysheree on 03/11/2013 07:16pm

    SobRcjIeoJvj [url=http://nike73.webnode.jp/]nike[/url] TroPofPnbHbb [url=http://nike-nike-air.webnode.jp/]ナイキシューズ[/url] PytSnzDkwZdf [url=http://nike-nike-air2.webnode.jp/]nike[/url] MboLibNupJjq [url=http://nike-nike-air1.webnode.jp/]ナイキシューズ[/url] QjaKuuZcgBcb [url=http://nike-air9.webnode.jp/]nike シューズ[/url] MiaFnvIioBut [url=http://nike-air5.webnode.jp/]ナイキスニーカー[/url] DsvNmyDzwWuh [url=http://nike600.webnode.jp/]スニーカーナイキ[/url] MmtEdpBarNkz [url=http://nike-air3.webnode.jp/]スニーカー nike[/url] OovEzkVpnEab [url=http://nike-air2.webnode.jp/]スニーカー nike[/url] PfoJaqErqUlg NlcCqlUqkOsz [url=http://nike-nike-n3.webnode.jp/]nike id[/url] HqeIqhSqeRmi [url=http://nike-air36.webnode.jp/]nike エア[/url] DpuEaoFgaAub [url=http://nike832.webnode.jp/]ナイキ[/url] DiqPnjGwuEud [url=http://nike-nike-n0.webnode.jp/]ナイキ[/url] ItqWxqGkpBjj [url=http://nike-nike-n4.webnode.jp/]nike air[/url] FkhHmiJfyXss [url=http://nike-air32.webnode.jp/]スニーカーナイキ[/url] YluYrpRuwWec [url=http://nike-air83.webnode.jp/]ナイキ air[/url] UrjUqtDruFfn [url=http://nike-nike-n2.webnode.jp/]ナイキ air[/url] IaoFfcEniTeb [url=http://nike-nike-n.webnode.jp/]ナイキスニーカー[/url] YapXmvWwkBpk NloXroYkcRcl [url=http://nike-nike-n5.webnode.jp/]nike id[/url]YvlKcsYvmIld [url=http://nike-nike-n37.webnode.jp/]ナイキランニング[/url]VuqWlnGrsQug [url=http://nike-nike-n8.webnode.jp/]nike ランニング[/url]EybUklWzqEzj [url=http://nike-free-free-nike.webnode.jp/]ナイキゴルフ[/url]BtxOqnNakOvw [url=http://nike-free-free-nike7.webnode.jp/]nike sb[/url]HowWgsNqsNey [url=http://nike-free-free-nike6.webnode.jp/]free nike[/url] BfyDbvNdzNvb [url=http://nike-free-free-nike4.webnode.jp/]nike sb[/url] PryEscMzbPzo [url=http://nike-free-free-nike9.webnode.jp/]nike sb[/url]SfzSjgXdeKtb

    Reply
  • Preventing editing item labels in tree view

    Posted by Legacy on 08/05/1999 12:00am

    Originally posted by: Chris Grieve

    This was a great help but it has a tiny buggette in the way that HitTest is used which stops you D&D ing something by the icon that is already selected. This is the correction;
    
    

    As before except;

    UINT flag = 0;


    if( ( ( tree.HitTest( pt, &flag ) == tree.GetSelectedItem()
    &&( flag & TVHT_ONITEMLABEL ) ) // new bit
    && ( FALSE ) ) // your check in here

    But I wouldn't have got this far without the original code(!)

    Thanks

    Chris

    Reply
  • Why not handle TVN_BEGINLABELEDIT notification?

    Posted by Legacy on 01/16/1999 12:00am

    Originally posted by: Peter Schregle

    A more straightforward way to inhibit label editing would be to handle the TVM_BEGINLABELEDIT notification. Return FALSE to allow and TRUE to cancel label editing.

    Reply
Leave a Comment
  • Your email address will not be published. All fields are required.

Top White Papers and Webcasts

  • On-demand Event Event Date: February 12, 2015 The evolution of systems engineering with the SysML modeling language has resulted in improved requirements specification, better architectural definition, and better hand-off to downstream engineering. Agile methods have proven successful in the software domain, but how can these methods be applied to systems engineering? Check out this webcast and join Bruce Powel Douglass, author of Real-Time Agility, as he discusses how agile methods have had a tremendous …

  • The mobile market is white hot. Building a well-crafted product development plan that addresses market research, strategy, design, and development will provide the greatest chance for success. Each phase of an app's lifecycle is critical to the its overall success and feeds into the next step of the process of product development for the app. This white paper examines the five key phases of mobile app creation, one by one, to understand how they work together to help create a successful mobile app.

Most Popular Programming Stories

More for Developers

RSS Feeds

Thanks for your registration, follow us on our social networks to keep up-to-date