Question

我有一个自定义单元格，它由3个不同的textfield txtsq，txtPOB，txtRxunit和这个自定义单元格组成，我的表视图中包含Controller，在表视图中，tableView中的Controller类为cellForRowAtIndexPath：（NSIndexPath *）indexPath ，现在我想设置我的3个不同文本字段的3个不同范围限制，这是在自定义单元格中，但我无法在我的

中设置范围

-(BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range
replacementString:(NSString *)string{
  NSString *resultStr = [textField.text stringByReplacingCharactersInRange:range withString:string];

  if (textField.tag ==SQ) {

    if([self isNumeric:resultStr]){
      if(resultStr.length <= 3){
        if(resultStr.length >= 1){
          NSString *firstLetter = [resultStr substringWithRange:NSMakeRange(0, 1)];
          if(![firstLetter isEqualToString:@"0"]){
            return YES;
          }
        }
        else{
          return YES;
        }
      }
    }
  }else

  if([self isNumeric:resultStr]){
    if(resultStr.length <= 5){
      if(resultStr.length >= 1){
        NSString *firstLetter = [resultStr substringWithRange:NSMakeRange(0, 1)];
        if(![firstLetter isEqualToString:@"0"]){
          return YES;
        }
      }
      else{
        return YES;
      }
    }
  }

  return NO;
}

我已定义cell.txtSQ.tag=SQ;

cell.txtPOB.tag =POB;
cell.txtRxUnit.tag=RXunit;

使用此代码后，我的表视图数据不是持久的。

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

if (self.skuNameArray.count > 0) {


        OrderCell *cell = nil;
        cell = (OrderCell *)[tableView dequeueReusableCellWithIdentifier:@"OrderCell"];

        if(cell == nil){

            cell = (OrderCell *)[OrderCell cellFromNibNamed:@"OrderCell"];
        }

        // Set Tag
        cell.tag            = indexPath.row;
        cell.txtSQ.tag      = indexPath.row;
        cell.txtPOB.tag     = indexPath.row;
        cell.txtRxUnit.tag  = indexPath.row;


//      cell.txtSQ.tag=SQ;


        //set Delegate
        cell.txtPOB.delegate = self;
        cell.txtRxUnit.delegate = self;
        cell.txtSQ.delegate = self;

        //set Values
        cell.lblSKU.text        =   self.skuNameArray[indexPath.row];
        cell.txtSQ.text         =   self.sqArray[indexPath.row];
        cell.txtPOB.text        =   self.pobArray[indexPath.row];
        cell.txtRxUnit.text     =   self.rxUnitArray[indexPath.row];


        if (self.index == PCP || self.index == CURRENT_DAY_REPORTING_DETAIL) {

            cell.txtSQ.enabled = NO;
            cell.txtRxUnit.enabled = NO;
            cell.txtPOB.enabled = NO;
        }
            [cell.txtSQ     addTarget:self action:@selector(sqChanged:)     forControlEvents: UIControlEventEditingChanged];
            [cell.txtPOB    addTarget:self action:@selector(pobChanged:)    forControlEvents: UIControlEventEditingChanged];
            [cell.txtRxUnit addTarget:self action:@selector(rxUnitChanged:) forControlEvents: UIControlEventEditingChanged];





        cell.backgroundColor = [UIColor clearColor];

         return cell;

    }

Answer 1

您的SQ可能是动态的。所以，让它静止。

或

您可能没有将委托设置为自己。这样做：

cell.txtSQ.delegate = self;
cell.txtPOB.delegate = self;
cell.txtRxUnit.delegate = self;

仔细设置标签：

// Set Tag
cell.txtSQ.tag      = SQ;
cell.txtPOB.tag     = POB;
cell.txtRxUnit.tag  = RXunit;

设置textFIeld的标签

1 个答案: