Validation in ASP.NET. Need some help. Thank You.

[Shapper]

Hello,

I have a form where I use the following tags:
Asp:Label, Asp:TextArea and Asp:ImageButton .

An example:
<asp:Label id="lmessage" runat="server"> Message:</asp:Label>
<asp:TextArea rows="10" id="fmessage"> </asp:TextArea>
<asp:ImageButto n runat="server" id="submit"
ImageUrl="submi t.gif"></asp:imagebutton >

I need to do the following when the send button is pressed:

If TextArea is empty.

1) Change text area background color to red.
2) Display message over text area: "Please Write your Message"
3) When the user places the mouse inside the text are the background
color changes again to the original color.

I have been making some tried in my aspx.vb code but until now I wasn't
able to understand how to create this.

Can somebody help me out?

Thanks,
Miguel

[Alvin Bruney [MVP - ASP.NET]]

You will need to add some script to do this, it can't be done from the
server - side (for the most part).
So one approach is to handle the onclick event and put some javascript to
change the color etc

--
Regards,
Alvin Bruney - ASP.NET MVP

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"Shapper" <mdmoura*NOSPAM *@gmail.*DELETE 2SEND*com> wrote in message
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Hello,

I have a form where I use the following tags:
Asp:Label, Asp:TextArea and Asp:ImageButton .

An example:
<asp:Label id="lmessage" runat="server"> Message:</asp:Label>
<asp:TextArea rows="10" id="fmessage"> </asp:TextArea>
<asp:ImageButto n runat="server" id="submit"
ImageUrl="submi t.gif"></asp:imagebutton >

I need to do the following when the send button is pressed:

If TextArea is empty.

1) Change text area background color to red.
2) Display message over text area: "Please Write your Message"
3) When the user places the mouse inside the text are the background
color changes again to the original color.

I have been making some tried in my aspx.vb code but until now I wasn't
able to understand how to create this.

Can somebody help me out?

Thanks,
Miguel