Difference between revisions of "Select an Entry or Add a New One ComboBox"
From Qt Wiki
| Line 7: | Line 7: | ||
In the following piece of code ''myText'' is the QString searched for and ''combo'' is a reference to the combo box. | In the following piece of code ''myText'' is the QString searched for and ''combo'' is a reference to the combo box. | ||
| − | <code> bool found = false;<br /> for( int i = 0; i | + | <code> bool found = false;<br /> for( int i = 0; i < combo->count() && ! found ; i++ )<br /> if( combo->itemText( i ) == myText ){<br /> combo->setCurrentIndex( i );<br /> found = true;<br /> } |
| − | if( ! found ){<br /> int index = combo- | + | if( ! found ){<br /> int index = combo->count();<br /> combo->addItem( myText ); |
| − | combo- | + | combo->setCurrentIndex( index ); |
Revision as of 06:43, 25 February 2015
How to select a specific text entry (or add it if does not exist) in a combo box
The following method acts on a combo box searching for a specified text string and:
* if the string is present select it
* if the string is not present add it to the combo box model
In the following piece of code myText is the QString searched for and combo is a reference to the combo box.
bool found = false;
for( int i = 0; i < combo->count() && ! found ; i++ )
if( combo->itemText( i ) == myText ){
combo->setCurrentIndex( i );
found = true;
}
if( ! found ){
int index = combo->count();
combo->addItem( myText );
combo->setCurrentIndex( index );
