Member Avatar for TommyTran

Hi everyone! I was doing programming and ran into this assignment. It says: create a "textbox1" to let the user enter a sentence. Then create a "textbox2" to let the user enter the text they want to remove. Then create a "textbox3" to let the user enter the word they want to replace.

For example, I enter "I love cookies very much" in "textbox1".
For "textbox2", I enter "cookies".
For "textbox3", I enter "eggs".
The label should then display "I love eggs very much" (the word "cookies" is replaced by the word "egg")

How can I do this? The sentence entered may have different length. So how can I locate the word that the user wants to remove. For this particular sentence, I can use "IndexOf("cookies") to locate the word "cookies". But if the user enter a different sentence, then "IndexOf(...what??...)

That's where i struggle.

And furthermore, how can I locate the "full" word. IndexOf only gives me the # of the first letter in that word. How can i locate where the word ends.

Anyone please help me. Thank you very much for your time.

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Member Avatar for apegram

Look up the String.Replace(...) function. :)

Edited by apegram because: n/a
Member Avatar for TommyTran

Thank you. I got it. Sorry for asking such stupid question. Because my teach is so weird, he never teaches us such a thing, and give us an assignment like that. ><

Member Avatar for apegram

Be thankful for those type of assignments. If you intend to do programming as a job, there will be countless times where a project requirement will have you scurrying for a way to implement it. In fact, I consider any project where I do not have to learn something new or utilize existing knowledge in a new way to be a colossal bore!

Edited by apegram because: n/a
Member Avatar for TommyTran

By the way, i just run into another problem ><. It says: let the user enter a sentence in a textbox. The second textbox will alow the user to enter what he want to remove from the first textbox.

For example: I enter "I want cookies". Then for the second textbox, I enter "oo". The the label should display "I want ckies" ( "oo" is removed).

I try to use the Replace method.
Me.lblanswer.Text = strenter.Replace(strremove, " ")
I replace the text that the user wants to remove by a "space"

The problem with that is: the label will display "I want c kies" (there are 2 space between the "c" and the "k").
I want it this way "ckies", not "c kies".

So how can I do that?

May you help me, please!

Member Avatar for apegram

The second parameter can be an empty string. Simply use "" or String.Empty to get your desired result.

Member Avatar for TommyTran

Thanks second time. :) I get it now. I just get to study vbn last week, so everything was so strange. i didnt know there is such thing as "". Thank you.

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