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

  • Microsoft® Office 365 is a top choice for enterprises that want a cloud-based suite of productivity/ collaboration applications. With Office 365, you get access to Microsoft™ Office solutions practically anytime, anywhere, on virtually any device. It's a great option for current Microsoft users who can now build on their experience with Microsoft™ solutions while enjoying the flexibility of a cloud-based delivery. But even organizations with no previous investment in Microsoft will find that …

  • Featuring Art Schoeller, VP and Principal Analyst, Forrester Research Wednesday, August 31, 2016 10:00 AM PT | 1 PM ET If Agility Is Essential to Your Business Survival--Now's the Time to Start the Move to Cloud! The maturity of cloud platforms has given organizations new confidence in moving mission-critical systems to the cloud, to gain agility, scale and realize cost benefits in the process. How can your company achieve these benefits, and what steps are necessary to begin your contact center's …

Most Popular Programming Stories

More for Developers

RSS Feeds

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