... where the left six characters are an offset and each xx represents one character and the string of cs on the right are the actual characters.
I've learned that I have to keep control characters out of that string of cs or the display gets messed up. I've been using this code and it works fine (when it's not commented out). (binbuf is a Byte array)
'Select Case Convert.ToInt32(binbuf(i)) < 128
' Case True 'traditional ASCII character
' If Convert.ToChar(binbuf(i)) <> " "c Then
I have a series of text boxes on my form, and my client wants me to filter out characters that aren't allowed, for example in the name field you cannot have symbols or numbers.
Now, he wants it so when you try and put in a special character it simply will not get entered into the text box. I know the logistics to this, but I'm not sure how I would go about coding it.
Basically what needs to happen is when the user types in characters like $, ^, 5, * etc, a function needs to recognise this and stop them from being entered into the textbox, whether it means deleting them as soon as they go in or interrupting the action altogether.
This is my first post at the forums, if I did something wrong making this topic Okey so here is the deal. The program task is to take 50 codes including letters and numbers. Take them and insert them into a webpage(webbrowser1) witch is designed to deal with these codes(3 fields). To check if the codes is valid etc.
Here is what I got :
WebBrowser1.document.GetElementById("Website textbox ID here").SetAttribute("value", TextBox1.Text) WebBrowser1.document.GetElementById("Website textbox ID here").SetAttribute("value", TextBox2.Text) ' WebBrowser1.document.GetElementById("Website textbox ID here").SetAttribute("value", TextBox3.Text) '
What this does it takes textbox1.text input(first part of code) and inserts in the first field at the website.The to others to exactly the same.But instead of having 3 diffrent texboxes I want it like in this pic.
i'm writing a program that gets text from word document and puts it in a richtextbox. The problem is the characters are unreadable once in the richtextbox.
I need help with my app. My app is retrieving data from the webBrowser and putting them into individual lines in the richtextbox. My problem is, if the retrieved string is too long then it takes more than 1 line in a richtextbox.
If I set the Text property of a RTB to a string that has CrLf's in it, it seems the RTB reduces the CrLf's to a single character & screws up the positioning to set the SelectionStart property.So, for example, if I know the position of a character in the original string & I set the Selection Start value to that position, the selection highlighting will be off by 1 character if the start position is preceded by a CrLf & off by 2 characters if preceded by 2 CrLf's, etc.So how can I determine the correct position to specify my SelectionStart value?
I am trying to write a thread safe application that contains 3 threads : -
1 - Data acquisition and decoding 2- Data graphing 3 - FFT and filtering
Thread 1 is collecting bytes from the serial port and converting them int integers (so taking two bytes) after is has captured 64 Bytes and converted into 32 integers, it then needs to pass the array to the graphing thread.
The graphing thread then plots the data and waits for more data.
Thread 3 also waits until thread one has collected 2023 integers and takes these and performs some FFT calculations (which take time).
My question is how do i share the arrays between the three threads without deadlocking the program? as the serial thread will be flying around reasonable fast (1000 bytes per second) so it will synclock onto the shared buffers for most of the time.
Originally i was going to use two synchronised queues, so when thread 1 has collected 32 bytes it queues the data into the graph queue, and once it has collected 2023 it queues the data into the FFT queue.
Then thread 2 and 3 can simple dequeue the data.
However using queues has the overhead of casting the data in and out, and as i know the data type i was planning on using two arrays :-
Dim GraphArray() as ushort Dim FFTArray() as ushort
Then Thread 1 adds data to each thread, and thread 2 and 3 simple wait until the correct amount of data is available before removing the data. my question is there an array type that allows me to remove x amount of data from an array?
Because i cannot do this easily with the ararys defined as above (GraphArray, FFTArray), as i was planning on making them 1mByte and allowing thread 1 to fill them Knowing they should never overflow and then let thread 2 and 3 remove x amout of bytes at a time unless there is a better way of doing it
For the past 2-3 weeks, I've been on VB Express working on different word processors, working myself up from the level of the Windows Notepad to Wordpad, and eventually (hopefully) something as good as OpenOffice.org Writer or Microsoft Word.I'm currently stuck on something that I can't quite figure out. My question is basically this, "How do you add subscript and superscript characters (not just the few numbers in the character map) to a richtextbox control?!" I'd be very grateful to anyone who could provide me with some help in this area.
I have a form with some textboxes on it. The textboxes show values from a table. I have a binding navigator that lets you step through the records in the table and the textboxes update. What I want, is to have a control, say a listbox, that allows you to select a value which will filter the data behind the controls so that you only have one record.
So, for example, say you have a table of contacts. There are textboxes on your form that show name, phone, address etc. You could then have a listbox that showed a list of all the contacts and you could select one, which would in turn the textboxes. The filtering field could be contactID for example.
I created a query on a Access database, which I would like to show with the datagridview. So, I created a new table adapter with my query, which creates as well the datatable tbl1. Then, the wizard created the datagridview for me, showing the correct data. Now, I would like to filter these rows: I already read it is possible to do it by simply clicking "Add query...", but I would like to do it in a different way. I have some comboboxes, and I would like to use the strings inside them to filter my table tbl1. Is it possible to apply those queries one after the other on my datatable tbl1? I am able to filter only once with:
I am using a datagrid to display a dataset. I would like to filter rows on certain fields (ex: ____ (Male/Female). I would want to it post-data retrieval on the client side.
I have a database with a Student table and a Class table. There are many students and many classes and each student is a member of a class.I then have a windows form that needs to display a list of student names in a listbox. However, I have a different form for each class. So for example in this form I have coded below, I need to display all students that are members of class51. The code I have so far is reading in all students from tblStudent and this is not what I want. I know that if I was doing SQL or something I'd simply write SELECT * FROM TBLSTUDENT WHERE CLASSID =his?
Private Sub frmAttendace51_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'clear data set of any existing data
DataGridView filtering. I have this data bound to a combobox: Product Index Prod1 1,2 Prod2 7,8,9 Prod3 10,11
Actual Table structure is: Index Product 1 prod1 2 prod1 7 prod2 8 prod2 9 prod2 10 prod2 11 prod3 (Product is the Display Member, Index is the ValueMember)
On the combobox's SelectedIndexChanged event, I'm filtering the DataGridView: DGVCustomers.DataSource.DefaultView.RowFilter = "indexes like '%" + MyDropDown.SelectedValue + "%'" If MyDropDown.SelectedValue is "1,2" then any record without either number will not be shown , in addition "7,8,9" will only show customers with that string... etc etc. How can I filter the DGV correctly with the CSV style data? (It's not my data unfortunately!)
I am trying to make a small application and I have a problem in binding data after filtering them.I use VB 2005 and SQL 2005. The data are shown in datagridview and I bind the selected row to the text boxes of the form. eg.[code]Later on I search the data for some records and at the same time I remove the databinding. When I try to bind them again it does not work because the index is from the whole data and not the filter data.I have fixed the problem in another situation where I had autonumberin as a primary key and I used this as an index. In this case I use platesno as an index and it's not working.
Am back from burial with a simple nut scratch....(hope its simple)I've queried my database from about seven comboboxes, textboxes and datetimepickersbut now before the data is put to the list view i want to sort it further more intogroups. Crop is the main group followed by variety.this is the code under the search button
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim sqlCrop, sqlVariety, sqlEnteredBy, sqlFromTo, sqlSDN, sqlWHERE, sqlAND1, sqlAND2,
I am pulling different information from the same file at two different times: 1) The first time, I pull information that is inserted into a combobox. I need to use the combobox as a filter for when I pull the information a second time. 2) I pull different information from the same file, and it is outputted into a datagridview table. I already have a filter in place when the information is pulled the second time, and I was wondering if I could add to that filter or if I have to make another filter? The filter (or filters) will be used to filter the information in the datagridview before it is outputted in a chart.
This is the code for binding the combobox to the information
I am trying to use my web browser control to get retrieve date from a specific page, including all sub-page content. Problem is some of the sub-pages are on a separate domain and thus I am getting a permission deigned error when i try to access the frame [through document.windows.frames(i).document].Is there any work around to do this, even if I have to manually change security settings? I tried turning all my settings in IE to allow and still same error. I will only be running the app locally and no one will be browsing on IE so I can literally change anything needed to get this to work (even install older version of IE which may allow it but can still handle JS processing).
Note the reason I am using web browser is a great majority of data I will be accessing is JS generated, so I need to access the DOM after JS processed / generated the HTML. Because of this, simply using SOCKETS to get the HTML is really not an option. Even if I had the HTML, I still need some type of engine to process all of the DOM elements based off javascript.
I am looking for a Visual Basic control for my windows application. It's a either a datagridview or listview in VB 2010. The list actually come with the filtering function on the top row. The user is allowed to key in the search key in the respective column and the list will filter at run time. Please refer to the picture below for your reference, the function is in the red box. I found this control in one of the software. Is there any similiar control in the VB 2010 or 3rd party control?
How to filter data from the database to combobox? For example, the database have the data, and i have a combobox, then i want to type the first letter, and the dropdown list comes down that the data have the first letter that i type in the combobox.
I've got grid data and I want to allow the user to filter it.I'm curious what controls or methods you all have used successfully to ask the user for this type of information.I see EXCEL allows you to click a header - ask for a filter - and get arrows in the heading to allow you to see a DISTINCT list with CHECK BOXES.Google Docs spreadsheet does almost the exact same thing.
I have a question about binding the datasource (MS Access database) to a listbox in a VB form. I have created a listbox and in the datasources explorer I have my datasource say SampleDS. I have several columns inside my datasource, say name, age, address in it. If I select name and drag to the listobx in the form, only the entries in the name column will be displayed in the listbox.
I want to know how to filter the name based on criteria. For example, how do I display names whose age >25?
My program so far reads a certain webpage's source code and places it in a textbox. This much has already been accomplished.
Now I need to pick certain strings out of the rather large amount of text data and have the lines stored in variables, but the trick of it is, the exact string is unknown. The exact function should be, that the code finds certain tags from the source code, say <td> and </td> and takes the string data in between those tags, what ever it may be.
Well I have a list of things I want to search based on multiple points of data...for example Resolution, 3D capable, touchscreen capable....etc....What is the best way for display someone can think of & filtering results by capability, I have none of it typed out, etc...like list of objects & capabilities, etc... alreat...so it can be made any way that is thought to be good(with speed as well) for many different listings...say 1,000 of them & it filters pretty much instantly....reading capabilities & such & the list itself is easy but how can I make a filter(unchecking something brings back things, checking something takes away only since well your adding capabilities to filter selection....I have pictures that can go with items too as well as a name & more information could be given directly with the method or clicking on the picture/item.
Does any one know where I can find a ruler control that inherits RichTextBox Control for VB 2008 with code. I am building my own word processor and I am trying to make it look like MS Word. I am somewhat new to this, so take it easy on me ladies and gents. i am using VB 2008 Express Edition, Windows Form.VB 6.0, VBExprss, ASP,Net, & Gaming
