如何在UITableviewCustomCell中爲文本字段添加邊框顏色 - iPhone

Question

我想驗證在customtableview單元格中添加的文本字段中的文本。我可以獲取文本並進行驗證，但無法設置邊框顏色。我甚至嘗試重新加載整個tableview。提前致謝。

NSIndexPath *indexPath = [NSIndexPath indexPathForRow:self.selectedRow inSection:0]; 
MyCustomTableviewCell *cell = (MyCustomTableviewCell*)[self.myTableView cellForRowAtIndexPath:indexPath]; 
UITextField *textField = cell.txtfield; 
self.string = textField.text; 

if (self.string.length < 8) 
{ 
    textField.layer.borderColor = [UIColor redColor].CGColor; 
    self.showTxtFieldinRed = YES; 
} 
else 
{ 
    textField.layer.borderColor = [UIColor clearColor].CGColor; 
    self.showTxtFieldinRed = NO; 
} 

NSArray *indexPathArray = [NSArray arrayWithObject:[NSIndexPath indexPathForRow:self.selectedRow inSection:0]]; 

[self.myTableView reloadRowsAtIndexPaths:indexPathArray withRowAnimation:UITableViewRowAnimationAutomatic]; 


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
     static NSString *CellIdentifier = @"MyCustomCell"; 
    MyCustomTableviewCell *cell = (MyCustomTableviewCell *) [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    cell.delegate = self; 
    cell.txtCVV.delegate = self; 

if (cell == nil) 
{ 
    NSArray *arrayContent = [[NSBundle mainBundle] loadNibNamed:@"MyCustomTableviewCell" owner:nil options:nil]; 
    cell = (MyCustomTableviewCell*)[arrayContent objectAtIndex:0]; 
    cell.backgroundColor = [UIColor clearColor]; 
    cell.selectionStyle = UITableViewCellSelectionStyleNone; 
} 
if(self.selectedRow == indexPath.row) 
{ 
    cell.txtfield.layer.borderColor = [UIColor redColor].CGColor; 
} 
else 
{ 
    cell.txtfield.layer.borderColor = [UIColor clearColor].CGColor; 
} 
cell.selectionStyle = UITableViewCellSelectionStyleNone; 
return cell; 

}

Answer 1

嘗試了這一點......

cell.comment_txt.layer.borderWidth= 1.0f; 
[cell.comment_txt setBorderStyle:UITextBorderStyleRoundedRect]; 
cell.comment_txt.layer.borderColor=[[UIColor blackColor]CGColor]; 

Answer 2

您可以從的UITextField繼承並重寫的drawRect方法。