Visual Studio 8 & BOOP w/C#

dcmininni · January 11th, 2013, 06:01 PM

For anyone that comes looking for help with the exercises using Visual Studio 8:

In the example code shown in the book, pay attention to what specific objects are named when adding them to your window forms.

For example, the exercise for Ch. 2 has you adding labels, buttons and textboxes. Table 2-2 on pages 48-49 as well as the sample code you are to type on showing names like txtName.Text and txtZip.Text, txtDisplayOutput.Text.

To make this example work I had to change the names to textBox1.Text, textBox2.Text etc etc. Also you have to be sure and set the "Output" textbox = to the "buffer"

Here is what it looked like for me instead of what appears on page 49.

Code:

String buffer;

    buffer = "Mailing Label:" + Environment.NewLine +
        Environment.NewLine;
    buffer = buffer + "   Name: " + textBox1.Text +
        Environment.NewLine;
    buffer = buffer + "   Address: " + textBox2.Text +
        Environment.NewLine;
    buffer = buffer + "   City: " + textBox3.Text
        + "   State: " + textBox4.Text + "   ZIP: " + textBox5.Text;
    textBox6.Text = buffer;

This is because although you change the "Text" field in the properties pane it does not change the actual "(Name)" as far as the code is concerned. I was unable to actually change the "(Name)" field despite trying several ways. I've never programmed before so if this is incorrect then please straighten my path.

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DrPurdum · January 14th, 2013, 02:20 PM

Unless you change the object variable names yourself, they default to the object type (e.g., textbox) followed by a number. Since these are usually non-descriptive variable names, you will normally want to change them from their default (e.g., textbox1) to something that is more descriptive (e.g., txtName). You comment suggests that you didn't rename the objects to the more descriptive names I suggested early in the text.

dcmininni · January 15th, 2013, 01:45 PM

For some reason or another I was not able to change object names through the properties pane. As of the Try It Out in Ch 4 I can now change the object names without manually going into the code. So whether my own fault or just a glitch, all is now well. Thanks.