Refresh - Program, Draws A Rectangle, Marks The X & Y Axis, & Plots A Dashed Line Grid

Dec 16, 2009

This is simple program, draws a rectangle, marks the x & y axis, & plots a dashed line grid. However, the grid sub has to be called twice - only then will the grid line be visible. Why does this happen?

CODE:

View 1 Replies


ADVERTISEMENT

How To Draw A DASHED Line Instead Of A Solid Line

Aug 22, 2010

I am graphing using Visual Basic graphics and it works. I would like to know how to draw a DASHED line instead of a solid line. Could someone help me with this?gphFormGraphics.DrawLine(Pens.Green, pt2, pt1)

View 4 Replies

When App Loads It Draws A Grid On PicCanvas

May 23, 2010

I am building a VB application (Visual Studio 2008). I have a drawing app where a user can draw out a 2d house-floorplan.When the app loads, it draws a grid on a picCanvas. Everything works the way that i want it to except that the lines don't "snap-to-grid" as they are being drawn.I suspect that the problem is in the picCanvas paint sub. [code]

View 1 Replies

Filling In Gaps With Another Color Within Dashed Line?

Aug 23, 2010

How to find the correct DashOffset and DashPattern to fill in the gaps with another color within a dashed line if the 1st DashPattern has an array of mixed values?
If the 1st array for a DashPattern is like this though?
myPen.DashPattern = New Single() {20, 15, 30, 45}

View 6 Replies

Graphic Repaint / Refresh - Draws A Circle Using A Timer - Circle Gets Displays It Flickers

Jun 8, 2011

I have developed a program which continuously draws a circle using a timer. Now every time the circle gets displays it flickers and which is because i have used me.refresh. Is there any other way to avoid this flickering.

Here is my code
Private Sub Timer1_Tick(ByVal sender As Object, ByVal e As EventArgs) Handles Timer1.Tick

Me.sweepAngle += 1

If Me.sweepAngle = 360 Then

[CODE]....

View 4 Replies

Make A User Control That Draws A Line And Adds Transparency Over A Form

Nov 12, 2010

I am an intern at a company doing Drawing Tools for their program. My supervisor is currently having me just make a user control that draws a line and adds transparency over a form. (I started this internship very early, so my knowledge is very limited compared to what it should be for a standard intern)

This is what I have so far:

Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
If MyBG Is Nothing Then
MyBG = New Bitmap(Me.Width, Me.Height)

[CODE]...

View 5 Replies

Program That Draws An Average?

Jul 11, 2010

I am creating a project that can transform a value numbers to a graph and when I run it it doesn't draw anything.

[Code]...

View 5 Replies

Get The Angle Of A Line In Relation To The X Axis?

Apr 18, 2011

i am trying to get the angle of a line in relation to the x axis. The line is being drawn in a picturebox. So its the Upper right quadrant of the cartesian plane ... but its flipped over the x axis.im using this code

a=pt(1).x
b=pt(1).y
c=pt(2).x
d=pt(2).y

z=math.atan2((c-a),(d-b))*(180/math.pi)

The issue is that the line im drawing is almost parallel to the x axis but its returning a value of roughly 90 degrees .It seems like it is giving me the angle in relation to the y axis, but not being super good at the math myself im not exactly sure what to change here.

View 6 Replies

How To Get Line Chart With Scaled Dates On X Axis

Mar 7, 2010

There are plenty of references on the Internet on MSChart (AxMSChart)for Visual Basic 2008, but the published code seems to have all sorts of problems. I am a novice and trying to get a line chart with scaled dates on the x-axis.

View 1 Replies

VS 2008 - Drawing A Rectangle Snapped To A Grid By Getting Start Point

Dec 27, 2009

I'm drawing a rectangle snapped to a grid by getting the start point(Mouse down e.location) and the end point(mouseup(e.location). The coding I'm having trouble with is having the program determine which way to draw the rectangle(where the location should be, and the height and width.) Now, this would be extremely simple if the user started their rectangle from the top left corner and ended it in the bottom right every time. But you need to be able to drag from all angles. So does anyone have some code lying around that I could look at so I could actually get my rectangles drawn right?

View 5 Replies

Grid Won't Refresh Everytime

Sep 8, 2010

How do I create a Javascript method in here that RELOADS the .aspx page, that I can call during one of those other existing methods.[code]...

View 2 Replies

Refresh Grid After Insert?

Jul 6, 2009

I have a grid but it does not refresh after i enter data into the table.

<asp:GridView ID="GridView1" runat="server" AllowPaging="True"
AllowSorting="True" AutoGenerateColumns="False" DataKeyNames="DriverID"
DataSourceID="SqlDataSource1" EmptyDataText="No Data">

[Code].....

View 2 Replies

Formatting Axis Labels Based On Axis Label Values?

May 22, 2012

I have a P/L chart which has a left scale (Y axis) which starts from a negative value. I want to format the axis labels (the major tick mark labels) so that the negative ones are red.
Something like;

If cht.ChartAreas(chtarea).AxisX.MajorTickMark.Value < 0 Then
cht.ChartAreas(chtarea).AxisY.LabelStyle.Font = New Font("Verdana", 9.0F, FontStyle.Bold, Color.Red)

[Code]....

Of course that doesn't work since MajorTickMark doesn't have a value property. How does one make this work?

View 1 Replies

Mouse Hook In X-axis And Y-axis Coordinates?

Aug 14, 2011

I am having trouble in getting the coordinates of x-axis and y-axis in low level ouse hook...all I am getting is values in x-axis listbox and in y-axis listbox I am getting zeros......why? and my second problem is I am calling the setcursorpos
function in a for loop because I want to automate mouse movements and clicks, but setcursorpos function is not working , maybe because I am getting the coordinates wrong.....here is my code

low level mouse hook

Public Class MouseAutomating
Inherits HotKey
Public lstbox As New ListBox

[code]...

View 4 Replies

Plotting Cartesian Plots In .net?

Oct 1, 2010

I am new to VB.net. I need to plot some Cartesian plots in vb.net 2010 enterprise edition. This is what I need to show in the plot:

- individual x-y points
- curve connecting the points
- coordinate axis and possibly a grid

I have no idea how to plot this. Actually I'm not even sure which control I would use. Should I draw this in a pictureBox?

View 2 Replies

C# - Refresh Property Grid, At Design-time, When A Readonly Collection Changes In .Net, Winforms?

Mar 3, 2010

I have a class that has a readonly collection property - Its a list of extender providers that have been applied to the control.I've implemented a simple property descriptor for the collection so that the property can be expanded in the property grid to examine each entry.

When I select an extender provider and set it to false, I remove it from the collection. The GetProperties method of the type converter is requeried and the property grid refreshes.However, when I set an extender provider to true, and thus add it to the collection, GetProperties is not requeried.

Somehow, the property grid is making a distinction between adding to and removing from the collection. Or alternativly, its refreshing when an extender provider is added, but not when one is removed.

[Code]...

View 1 Replies

Draw Rectangle And Line On PictureBox On Button Clicks

May 29, 2012

I have a form in which I draw a rectangle and a line depending on the button click. I basically want a dynamic line/ rectangle that moves when the mouse is clicked on another point on the picturebox. I found some code online for a rectangle, and I'm trying to extend it to draw a line too, but i'm having some issues. The line is not displayed when the mouse is lifted(mouse up event).

Here's my code:
Public Class Form1
Dim selection As Rectangle = Nothing
Dim m_Drawing As Boolean = False
Dim m_Start As Point
Dim square_click As Boolean = False
[Code] ......

View 6 Replies

DataGridView - VS 20008 - Automatically Update Database, Refresh Grid On Initial Window

Feb 8, 2010

I have a datagrid view containing a customer list that if if double click on a row it brings up a customer maintenance window. Once I hit a save bottom on the second form how can I automatically update the database, refresh the grid on the initial window but remain on the same row on form1 that I double clicked on in the first place. Currently I am re-loading the datagrid on the initial form with all the data once I close the second window down.

View 6 Replies

Scroll The Grid, So That The Row That The Program Is 'looking At' Is In The Middle Of The Grid?

Jan 18, 2011

Visual Basic 2005 I have a DataGridView on a form. It's bound to a DataSet, and I'm working by way through the dataset doing various things to the records based on the "status". What I would like to do is scroll the grid, so that the row that the program is 'looking at' is in the middle of the grid.

View 1 Replies

Excel - Code In VBA And Recording A Macro - Input A Values For The X Axis Rotation And The Y Axis Rotation

Sep 16, 2009

I am having some major problems with the code in VBA and recording a macro didn't get me anywhere nor is the VBA help file. I have to have it so that I can input a values for the x axis rotation and the y axis rotation so that my 3d surface graph will rotate whatever values I input, the 3d surface graph will rotate those degrees. I also have to have a method for having the default rotation. I was also wondering how to put scroll bars for the x and y rotation. The only other thing I am having trouble with is having an input to check box for right angle axes. So far I have two cells for entering the x rotation value and the y rotation value. I also already have my 3d surface graph.

View 3 Replies

Use Speach Marks Inside Of Speach Marks In Code?

Sep 20, 2011

im trying to get this as a result:

"the person said "hello""

how can i use speach marks inside of speach marks in code?

View 3 Replies

VS 2010 Quotation Marks Inside Quotation Marks?

Sep 19, 2010

I need to check if the webpage contains class="listingTitle">

So im using this

If (WebBrowser1.DocumentText.IndexOf("class=""listingTitle"">", StringComparison.InvariantCultureIgnoreCase) > -1) Then
That doesnt work. I tried "class='listingTitle'>", and I tried "class=""listingTitle"">" both dont work.

View 1 Replies

Way To Draw Dashed Lines

May 29, 2009

I need to draw dashed lines. I use this code:

Dim MyPen As Pen = New Pen(Color.Black, MyWidth) With {.DashStyle = Drawing2D.DashStyle.Dash}

MyGraphics.DrawLines(MyPen , MyDots.ToArray)

But since the distance between successive lines it too short, the dashes start each one too near to the last. It causes a continuous black line

View 10 Replies

RDLC Chart - Produce A Chart Showing The Month Along The Y-axis And The Value Up The X-axis

Jan 8, 2009

I have the smallest dataset in the world that simply consists of a month (text) and and amount. I want to produce a chart showing the month along the y-axis and the value up the x-axis. How do I do it? I have dragged the chart control onto the report page and populated the dataset. The chart shows but nothing like what I would expect. Just to make it simple I populated the dataset with an amount equivalent to the month number so it should show as 1 in January, 2 in Feb etc...However no matter where I drag the dataset's column names I don't get what I want. Where am I going wrong?

I use this simple loop to populate the dataset:

dsSales.Tables("Sales").Clear()

For i As Integer = 1 To 12
dsSales.Tables("Sales").Rows.Add(MonthName(i), i)
Next

ReportViewer1.RefreshReport()

I get this as a result:

View 1 Replies

How To Move Rectangle In Program

May 14, 2011

I am raw hand. I want a simple function, when I press a button, I change a Rectangle position and size. so the code is:

[Code]...

View 10 Replies

List(of Rectangle), Rectangle.offset(x,y) Doesn't Work?

Jul 26, 2010

i've got a little problem with List(on T) variables.

[code]...

It works perfectly fine. Does anyone know what the problem is?

View 2 Replies

Draw Grid Line Onto A Picbox?

Jul 31, 2009

i know vb6 but i am currently trying to teach my self vb.net how to draw grid line onto a picbox ie both horizontal and vertical lines so i end up with a grid affect

View 1 Replies

Interface And Graphics :: How Do You Make A GUI Program That Is Not A Square/rectangle

Jan 31, 2010

I can't seem to make a GUI in the shape a circle...

something other than square/rectangle.

View 1 Replies

Add New Line In Data Grid View 2005?

Dec 26, 2009

I am using Datagrid View in vb.net 2005 i have loaded data from db to the datagridview in all cells. i have concatenate three strings in a cell from db. i want that after first string the second string goes to the new line in the cell.[code]...

View 1 Replies

Draw A Line Grid On A Windows Form?

Dec 26, 2009

I need to draw a line grid on a windows form that contains 4 rows and 4 columns.

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved