Re: GUIkit problem
- To: mathgroup at smc.vnet.net
- Subject: [mg56719] Re: GUIkit problem
- From: "Lalu" <BhuvaneshBhatt at gmail.com>
- Date: Wed, 4 May 2005 00:34:34 -0400 (EDT)
- References: <d57h2q$p8q$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
babazar... at gmail.com wrote:
> Hello,
>
> I'm new to Mathematica and GUIkit and wonder why the following
> expressions produce a GUI with only the first label (Hello World1!).
>
> Needs["GUIKit`"];
> label1 := Widget["Label", {"text" -> "Hello World1!"}]
> label2 := Widget["Label", {"text" -> "Hello World2!"}]
> newlist = {label1}
> Append[newlist, label2]
> HelloWorld[] := GUIRunModal[ Widget["Panel", newlist]]
> HelloWorld[]
You need to use AppendTo instead of Append.
In[1]:= ?Append
Append[expr, elem] gives expr with elem appended.
In[2]:= ?AppendTo
AppendTo[s, elem] appends elem to the value of s, and resets s to the
result.
In[3]:= list = {x}
Out[3]= {x}
In[4]:= Append[list, y]
Out[4]= {x, y}
In[5]:= list
Out[5]= {x}
In[6]:= AppendTo[list, y]
Out[6]= {x, y}
In[7]:= list
Out[7]= {x, y}
Hope this helps.
Bhuvanesh Bhatt,
Wolfram Research.