[2005] Making A Custom Render - Allows The End User To Format The Text
Mar 6, 2009
I'd like to make a custom control that allows the end user to format the text, similar to an HTML or RichText control. The idea is that it will be static like a label, but allow end user to specify certain tags around words to make them bold, italic, underline, hyperlink, etc, either at design time or runtime. My question more specifically is how to best approach this. My intention is to use GDI+ methods, like DrawString, etc. But my concern is the inefficiency of having to parse the text each Paint cycle to determine which tags are present in order to use the correct font style, etc. I'm not really asking HOW to do this, but more of a hint on which architectural approach to take on this. Maybe there is already some examples of this out there?
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Apr 25, 2009
I want to set my custom date format for whole desktop application. whatever the system date format settings are, My application should be able to use my own given date format and it should not be effected by system date format changes.
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Apr 28, 2010
I want to write the data to a file which in an format that is only understandable by my program, and if any one opens it in notepad must not be able to read(understand) it.
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Apr 15, 2010
I'm having this weird issue with the FileStream Object. I'm using this object to render some reports as PDF format.
This is the code;
PrivateSub ExporttoPDF(ByVal NameAsString)
Dim warningsAs Warning() =Nothing
Dim streamidsAsString() =Nothing
[CODE]...
Name is a parameter I'm passing to this subroutine from another one. When the application passes the first name, creates the pdf file fine, on the second name parameter fails to create the pfd file saying that Could not find a part of the path and it showing the path. I don't understand why is doing this.
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Aug 11, 2011
On the main form of my application, I have a Rich Text Box which is where the user will be entering information. The text is black. then, i have a button which calls the dialogue "Notes" A dialogue appears, with a rich text box. the user should then be able to enter text into the box, click "OK", and the text entered into the Notes dialogue be inserted to the rich text box on the main form -- with the font colour "Red". The rest of the text in the main rich text box on the main form should remain black.
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Feb 17, 2011
I have an error when converting a text string to date, I've tried all the date conversions I can think of and still get the same error (cdate, date.parse and Convert.ToDateTime) this happens after I export an RDLC report to a PDF. As you can see in the below code, there are 2 identical variables called newDate1 and newDate2, one being declared before the render and the other being declared after the render. The first one works no problem but the second one I get the error: Conversion from string "16/02/2011" to type 'date' is not valid. This now becomes a program wide error and affects every date conversion done in the program, this problem remains until the program is restarted.
In short: CDate converts MM/DD/YYYY no problem, but after a PDF export it tries to convert to DD/MM/YYYY which gives an error
Public Function ExportPDFReport(ByVal ReportPath As String) As String
Dim newDate1 As Date = CDate("16/02/2011")
Dim bytes As Byte() = uxReportViewerRDLC.LocalReport.Render("PDF")
[CODE]...
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Apr 10, 2010
So im making a text replacer for PSP Programmers to easily convert the codes to NitePR format. None of you know what that is but w/e Heres my problem I load the text file that has the code into a text box.
Then i press the button to convert. It has this code
[Code]...
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Aug 16, 2010
Currently, I've used System.IO.StreamWriter to write items to a text file. However, what I have are items separated by a Writeline(). Meaning, the items are displayed in several rows, in a column. But what I want is a single row, with many columns, separated by commas for each item. Example of what I want: 16/8/2010,100,you
vb.net
Dim psBattery As PowerStatus = SystemInformation.PowerStatus
Dim perFull As Single = psBattery.BatteryLifePercent
Dim Now As DateTime = DateTime.Now
[code]....
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Jul 27, 2011
I'm trying to, for example: Have a button control, and a picturebox(?) control. I need to figure out a way to make the Picturebox image the current snapshot of the Button. Is this possible? Should I be using WPF or something?
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Aug 28, 2010
how to handle Rich Text Format in VB.net 2005
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Jun 25, 2009
I came across this great article on creating a custom datagridview column which creates a graph-like effect in the cells of a custom datagridview column:[URL]..Does anyone know how you would edit this to format the number in the cell as a percentage? And does anyone know how you would set this up to take 0 values which do not create any graph effects at all.I have been trying to do this but keep getting errors.
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Jan 8, 2010
The bottom line on a dropped-down datetimepicker shows the date different then in the text-part.In my case, the text-part format was yyyy/mm/dd, but the bottom part of the dropped down part stated Today: dd/mm/yyyy, what is probably the format set in the regional settings.
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Jul 7, 2011
The problem is I am able to extract the data by giving cell reference like: TextBox1.Text = objWorksheet.Cells(5, 2).value
But I want to select a row as per input given by user and want to extract data from that row.
The input given by user is in text format, in my case name of employee. And I have to extract address of that name.
[code]...
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Jan 13, 2010
I want to format the Timespan to have format like this 49 hr 34 mn 20 sec
I used the String format below :
String.Format("{0:00}:{1:00}:{2:00}", theTimeSpan.TotalHours, theTimeSpan.Minutes, theTimeSpan.Seconds)
It formats the Timespan to this format 49:34:20. How can I add hr mn sec to the String.Format above? or there's another easy way?
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Nov 14, 2009
I'm trying to find a way to have text that would be "Live" as in if a user types an incorrect phrase/letter in a text box, a message will appear prior to a "save" button being pressed. It's pretty much the same as when you're registering on these forums, it checks the availabilty of the username as you type it.
[Code]...
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Aug 20, 2009
After using a form as a replacement for MessageBox I do have a need to make it automatically adjust its size to fit its contents, is there any rule out there that we need to abide to when it comes to sizing the form acting as MessageBox?
I am thinking I could use a panel that will auto-resize and just resize the form according to the size of the panel but I am not sure that will work as I haven't tried it yet.
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Apr 5, 2011
I'm working on a website that creates pdfs dynamically.I've been playing around with two different pdf controls- wpcubed and abcpdf, and was surprised to see that they both appear to render text differently.
wpCubed:
abcpdf:
They are both using arial 25pt bold, so I was expecting them to look identical. Can anyone explain why they don't. Here are the full files: wpCubed , abcpdf
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Nov 4, 2011
I've got a timer which ticks every half a second. It calls a background process which renders text as icons and uses them for notification icons.
Public Shared DISCUS(9) As NotifyIcon
Private Sub BackgroundProcess2_DoWork() Handles BackgroundProcess2.DoWork
Try
For counter As Integer = 0 To My.Computer.FileSystem.Drives.Count - 1
Dim FontColor As Color
[Code] .....
Now for some reason, after a few minutes of the application being active, I get a JIT pop-up that doesn't render any text or buttons. Clicking on it causes the JIT debugger to crash, and I get the Windows "{App} has stopped responding." with error code CLR20R3. I'm not sure what this is all about, but I can provide any other details if needed. I've got everything nested in Try/Catch statements, all with code to write to a crash log but nothing gets written and I still get that error message.
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Nov 30, 2009
I am trying to do a custom date format in VB.net using Format. The data coming in is "2009-10-03 00:00:00.000" and I want it to be "OCT 03 2009 12:00AM". I am using Format(object, "MON DD YYYY HH:MIAM") and am getting screwy results ... "2006-09-17 00:00:00.000" becomes "9ON DD YYYY 00:9IA9".
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Oct 6, 2010
I'm using some code to enable me to render rotated text with the TextRenderer.DrawText method. (By default, DrawText can only copy a straight forward x and y transform from a graphics object).
The code (C#) is from: connect.microsoft.com. See below for a VB conversion.The code takes a graphics object, creates a device context and copies the transform matrix from the graphics object. It works, but I'd like, also, to set the TextRenderingHint, so I tried:
<DllImport("gdiplus.dll", CharSet:=CharSet.Unicode, SetLastError:=True, ExactSpelling:=True)> _
Public Shared Function GdipSetTextRenderingHint(ByVal graphics As HandleRef, ByVal textRenderingHint As System.Drawing.Text.TextRenderingHint) As Integer End Function And then after the SetClip statement, I place: GdipSetTextRenderingHint(hDC, someHint) This gives me a memory access violation error, so I think I should be using something other than hDC as the argument.
I can get it to work by creating the device context from the original graphics object, and then creating another graphics object from the device context. I then set the hint on the new graphics object. This seems a bit convoluted so I was wondering if it was possible through interop.
[Code]...
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Dec 18, 2009
I need to constantly display large amounts of colored text in WPF or Silverlight, and I need the user to percieve it as showing up instantly.
Currently I'm doing this using a canvas and textblocks, one textblock per 80-character line, with multiple runs to a textblock to handle the different colors. There can often be 20+ runs to a line.
In a 45x80 grid of text, this gets a framerate of about 12 in Silverlight, which is sluggish. Oddly enough, it's even slower in WPF... I can only speculate that this has something to do with my dev machine's lousy video card. Maybe it's trying to hardware accelerate and actually slowing down because of it?
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Feb 16, 2010
How to format drive in FAT 16 format using VB.NET without user interaction?
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Oct 20, 2009
I have made a few siple web browser, using a web browser control, a texbox, and a few buttons.I need to learn how to:Make a download handler(like FireFox)Make a custom web browser control(if possible)Use EXTERNAL .EXE's(like toolbars)Make an installer using a background worker, and System.
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Jan 17, 2010
Firstly sorry if this has already been covered, though I am trying to find out if there is a way that I could make all objects on a form appear in the same area no matter what the resolution of the screen is? e.g. I have a group box located down the bottom right for a 1024x768 screen resolution but when I view it on my widescreen laptop it isn't right down the bottom right where I want it. Is there a way this can be done? I'm assuming i could check the system properties to tell me what the resolution is and if it's widescreen then change the location of the object.
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Jun 9, 2011
Introduction[INDENT]Since this is my first thread in VB.NET forum(most of the time, I was in C/C++ forum), I want to share something that you might find it useful with your school project or with your works.Button is already a MUST-HAVE element in every program (I couldn't imagine program without a single button would function). Because it is everywhere, its appearance affects your form's appearance greatly. Some people might not care about how their software looks, but to me, it is a very important aspect for my software.
NOTE: I am pretty new to VB.NET myself. If there is any mistake, please correct me.
[/INDENT]
Step 1: Creating UserControl and Essential Properties[INDENT]Creating UserControl into your project. Then imports the following:
Imports System.ComponentModel
Imports System.Windows.Forms
[code]....
Because UserControl already has BackColor and ForeColor properties, you only need to construct Text and BorderColor properties
Private _BorderColor As Color '' Button Border Color
Public Property BorderColor() As Color
Get
[code]....
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Jun 17, 2009
I am experimenting with CUSTOM CONTROLS for the very first time. What I did so far: I've created a new Windows Control Library project. In there I simply resized the custom control area (made it very wide and only 50 high). I added a pictureBox on the very left, a Label1 with Large text on the right and 2 other labels underneath Label1 on the left and right.Further I've set MOUSE HOVER effects, "Yellow" for MoudeEnter and "White" for MouseLeave.
In a Windows Form application I add this control over and over again into a Panel1 (DockStyle TOP) for each jpg file found in "My Pictures". The PictureBox in My custom control has the Thumbnail of the real picture, the Label1 shows the name of the file.
All this worked out better than I expected for my very first CUSTOM CONTROL, however, there is still 1 thing I would like it to do: being 'selected' when I click on one of the CUSTOM CONTROLS in my Panel1. Does anyone know how to do that? If I set a BackGroundColor change on MouseClick in my custom control, then it surely would change the color, however, it would stay that way even if I click on the next custom control in my Panel1 .(Listing SPEC's is not a review !
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Mar 12, 2009
I am trying to create a Messagebox/dialogbox that will allow me you Define the Prompt and the text for the two buttons. I started by looking around the internet and found [URL]. It got me started But i don't think i have the libraries to make the stackoverflow.com code work. i don't know enought about events to make the box always have the focus untill it is closed or one of the buttons is pressed. I would also like to return the button.text of the button that was clicked.here is the little code i have
Public Class DialogBoxForm
Private _ButtonName1 As String
Private _ButtonName2 As String
[Code].....
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Mar 8, 2010
I was thinking of making a custom skin for my application. I looked into Aero like application like this one. But wait a problem it will not work on XP So my question is do you know were i can get free and good looking GUI. Or can i make the aero work some how on XP.
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Mar 21, 2009
How would I make my own custom border style? I want to make my own so that the program looks better and havign its own close/minimize button would be awesome also. Here is what I mean by it:[URL] notice it doesnt use the normal xp or vista bar it is its own? How would I go about doing that?
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May 6, 2009
I'd like to know how to make my own custom control. Please guide me from the very beginning, since I'm new to VB.Net2008.
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