QT small white, recently in a qtablewidget setitem add data, the HTML code is as follows, after the operation can only display information, the second line is written where there is a problem, have a great god help have a look at how to change,

 int rowCount=UI. DetectingPointsTable - & gt; RowCount ();//the number of rows 
UI. DetectingPointsTable - & gt; InsertRow (rowCount); 
UI. DetectingPointsTable - & gt; SetItem (0, 0, new QTableWidgetItem (QStringLiteral (" K ") + QString: : number (50) + ", "+ QString: : number (50))); 
UI. DetectingPointsTable - & gt; SetItem (0, 1, new QTableWidgetItem (R: 0 G: 0 B: "0")); 
UI. DetectingPointsTable - & gt; SetItem (0, 2, new QTableWidgetItem (QString: : number (0) + QStringLiteral (", "))); 


UI. DetectingPointsTable - & gt; InsertRow (rowCount); 
UI. DetectingPointsTable - & gt; SetItem (1, 0, new QTableWidgetItem (QStringLiteral (" J: ") + QString: : number (100) + ", "+ QString: : number (100))); 
UI. DetectingPointsTable - & gt; SetItem (1, 1, new QTableWidgetItem (R: 0 G: 0 B: "0")); 
UI. DetectingPointsTable - & gt; SetItem (1, 2, new QTableWidgetItem (QString: : number (0) + QStringLiteral (", "))); 

CodePudding user response:

I found that no matter how much to add, all show only the last line of data

 

Int the rowCount=UI. DetectingPointsTable - & gt; RowCount ();//the number of rows 
UI. DetectingPointsTable - & gt; InsertRow (rowCount); 
UI. DetectingPointsTable - & gt; SetItem (0, 0, new QTableWidgetItem (QStringLiteral (" K ") + QString: : number (50) + ", "+ QString: : number (50))); 
UI. DetectingPointsTable - & gt; SetItem (0, 1, new QTableWidgetItem (R: 0 G: 0 B: "0")); 
UI. DetectingPointsTable - & gt; SetItem (0, 2, new QTableWidgetItem (QString: : number (0) + QStringLiteral (" ℃ "))); 

UI. DetectingPointsTable - & gt; InsertRow (rowCount); 
UI. DetectingPointsTable - & gt; SetItem (1, 0, new QTableWidgetItem (QStringLiteral (" J: ") + QString: : number (100) + ", "+ QString: : number (100))); 
UI. DetectingPointsTable - & gt; SetItem (1, 1, new QTableWidgetItem (R: 0 G: 0 B: "0")); 
UI. DetectingPointsTable - & gt; SetItem (1, 2, new QTableWidgetItem (QString: : number (0) + QStringLiteral (" ℃ "))); 

. 

UI. DetectingPointsTable - & gt; InsertRow (rowCount); 
UI. DetectingPointsTable - & gt; SetItem (20, 0, new QTableWidgetItem (QStringLiteral (" U ") + QString: : number (100) + ", "+ QString: : number (100))); 
UI. DetectingPointsTable - & gt; SetItem (20 to 1, the new QTableWidgetItem (R: 0 G: 0 B: "0")); 
UI. DetectingPointsTable - & gt; SetItem (20, 2, new QTableWidgetItem (QString: : number (0) + QStringLiteral (" ℃ "))); 

UI. DetectingPointsTable - & gt; InsertRow (rowCount); 
UI. DetectingPointsTable - & gt; SetItem (21, 0, new QTableWidgetItem (QStringLiteral (" V ") + QString: : number (100) + ", "+ QString: : number (100))); 
UI. DetectingPointsTable - & gt; SetItem (21, 1, new QTableWidgetItem (R: 0 G: 0 B: "0")); 
UI. DetectingPointsTable - & gt; SetItem (21, 2, new QTableWidgetItem (QString: : number (0) + QStringLiteral (" ℃ "))); 

CodePudding user response:

The beginning is an empty table, then the rowCount=0
Then you insertRow (0), insert the line 1, set the line item 1
Then you insertRow (0), and insert the line 1, replacing the original line 1 to line 2, and then you take line 2 (line 1) of the original item all reset again

CodePudding user response:

Every time you put a line, the rowCount to + +, you always in the first line plug, you forever is the first time you set the line