NSTextField setStringValue：将字符串追加到NSTextField [英] NSTextField setStringValue: append strings to NSTextField

问题描述

我有十个按钮，每个都有不同的名称。在选择每个按钮，我需要将按钮的标题附加到NSTextField，而不删除旧的字符串。

I have some 10 buttons with different names each.On selecting each button I need to append the button's title to NSTextField without removing the older string.

- (IBAction)nextButton:(NSButton*)sender
{
    int tag = [sender tag];

    if (tag==1) {

        [resultField setStringValue:[sender title]];
    }
    else if (tag==2) {

        [resultField setStringValue:[sender title]];
    }
    else if (tag==3) {

        [resultField setStringValue:[sender title]];
    }
    else if (tag==4) {
        [resultField setStringValue:[sender title]];
    }
    else if (tag==5) {
        [resultField setStringValue:[sender title]];
    }
    else if (tag==6) {

        [resultField setStringValue:[sender title]];
    }
    else if (tag==7) {

        [resultField setStringValue:[sender title]];
    }
    else if (tag==8) {

        [resultField setStringValue:[sender title]];
    }
    else if (tag==9) {

        [resultField setStringValue:[sender title]];
    }
    else if (tag==10) {

        [resultField setStringValue:[sender title]];
    }
}

$ b

这里的resultField是我的NSTextField。

Here resultField is my NSTextField.

setStringValue重写新的字符串，所以我不能附加字符串到NSTextField.Is有任何简单的方法来实现这个或者使用NSString值保存上一个字符串，并将此字符串NSTextFile和新按钮的字符串值。

setStringValue overriding the new string,so that I couldnot able to append string to NSTextField.Is there any easy way to implement this or else use NSString value to hold the previous string and set this string to NSTextFiled along with new button's string value.

推荐答案

如：

[resultField setStringValue: 
    [NSString stringWithFormat: @"%@ %@", [resultField stringValue], [sender title]];

这里的想法是，你拿你的NSTextField的原始内容，并通过 stringWithFormat ，然后将该新字符串分配给您的NSTextField。

The idea here is that you take the original content of your NSTextField and compose a new string via stringWithFormat and then assign that new string to your NSTextField.

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