CODEWITHSUNDEEP
javaswingjtable
Anti Atlas Dev
Anti Atlas Dev

Reputation: 437

check if there is no an empty rows in JTable befor saving with push button?

hi guys i have a question about checking for empty rows in JTable to tell user that you forget something before saving data with bush button.. i have 18 columns and unlimited rows so what i want is to creat a method that can i call with ok_btn or i have to creat somthing inside action of button itself.. 

ok_btnActionPerformed(java.awt.event.ActionEvent evt) { 
if (not empty){
//do somthing
this.dispose();
else{
JOptionPaneShowMessageDialog(null,"you forget something!");
}

i want to check for column 7 & 12!

thanks in advance

Upvotes: 1

Views: 962

Answers (2)

Anti Atlas Dev
Anti Atlas Dev

Reputation: 437

OK here is my code after i updated it: 

private void btn_OkActionPerformed(java.awt.event.ActionEvent evt) {                                           


              boolean isEmpty7 = false;boolean isEmpty12 = false;
     for (int i = 0; i < table.getRowCount(); i++) { //for column 7
         if (table.getValueAt(i, 7).toString().equals("0.0")) {
               isEmpty7 = true;
               break;
         }

       }
     for (int i = 0; i < table.getRowCount(); i++) {
        if (table.getValueAt(i, 12)==null) {
               isEmpty12 = true;
               break;
         } 
     }

       if (!isEmpty7&&!isEmpty12){
          //do somthing
          this.dispose();
       }else if (isEmpty7&&isEmpty12){
           JOptionPane.showMessageDialog(null,"you forget something");
       }else if(isEmpty7){
          JOptionPane.showMessageDialog(null,"you forget row 7");
       }else if (isEmpty12){
           JOptionPane.showMessageDialog(null,"you forget row 12");
       }
    }

Upvotes: 1

J&#225;n Яabčan
J&#225;n Яabčan

Reputation: 773

I dont know structure of your table or tablemodel, but you can do it in this way:

ok_btnActionPerformed(java.awt.event.ActionEvent evt) { 

 boolean isEmpty = false;
 for (int i = 0; i < jTable1.getRowCount(); i++) { //for column 7
     if (jTable1.getValueAt(i, 7).toString().equals("")) {
           isEmpty = true;
           break;
     }
   }

   if (!notEmpty){
      //do somthing
      this.dispose();
   else{
      JOptionPaneShowMessageDialog(null,"you forget something!");
}

Upvotes: 2

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