.net - "Find Next" Functionality In RichTextBox: Include "Match Case"
May 20, 2011
I have very complicated, unnecessary code because I wrote it myself and this is a new concept to me. The code is intended to find a string in the main window's RichTextBox (the string is obviously supplied by the user). The code works fine, but due to its convoluted nature, I don't know how to implement a "Match case" function.
The form has these controls (at least the ones you use when searching for text):
Textbox: "txtFind" - User enters a search term here
Checkbox: "chkMatchCase" - Allows a user to choose whether or not to match the case of the search term
Button: "btnFind" - The Find Next button
And this is my code
Dim index As Integer = 0
Private Sub OK_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnFind.Click
Dim strSearchTerm As String
[Code].....
Anyway, if there's a better way to implement this, please let me know. And I did extensive searching, but found no good solution. I ended up combining a bunch of little parts of other tutorials into this. If there's no better solution, I'd just like to know how to implement a "Match case" function.
Here's the situation: I've got a form that has - RichTextBox - OpenButton (to load RTF file) - SaveButton (to save RTF file after editing) - Textbox (for search phrase) - SearchButton - ExitButton - 2 RadioButtons (WholeWord and MatchCase search)
All of them are working just the way I want them to except search features; I don't know how to write them properly. At the moment, they search and highlight only the first word they encounter. E.g. say I search for word "the" in the document, only the first "the" it encounters is highlighted. The rest is just untouched.
I understand this is because I've only got few lines of simple code as follows If rtfText.Find(txtSearch.Text, RichTextBoxFinds.WholeWord) = -1 Then MessageBox.Show("No results returned. Please try again.", "No matching results.", MessageBoxButtons.OK, MessageBoxIcon.Information) End If
I did try a few other snippets I found on the Internet including While loop but they didn't work as I wanted them to, and I couldn't understand them either. What I want is, which ever search option is used, when the matching result is found; it will highlight that word and when I click it again it will move onto another word. If I keep clicking, it will highlight the same words (but located in different areas) throughout the whole document and at the end, it will send back to the first matching word. Just like Adobe Reader search.
I have connected my database to visual basic.I have a form1 which allows me to scroll through all the data in my database (i.e. the name, account no, address etc)My form2 contains a calculation involving payments which involve the previous account.My form3 needs to contain this calculation PLUS the database information in a RichTextBox. My question is how do I include my DB info in a RichTextBox? (i.e how do I pass the information from form1 onto form3)
Private Sub btnRPSearch_Click(sender As System.Object, e As System.EventArgs) Handles btnRPSearch.Click Dim currentRecord As String = RprAuthNumTextBox.Text
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[Code]....
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