Select One Box Of A Drawing?
Oct 14, 2009I have drawn a bunch of squares with GDI+, but what I want to do is when somebody goes over one of the squares, that square changes it's color.
View 4 Replies
ADVERTISEMENT
Drawing From - User To Be Able To Select Any Tile, And Read Data From It?
Jan 30, 2010Say I have a tile map, example:
111111
122221
122221
111111
And we know that the total X and Y coordinates of the map is (6, 4), with the numbers 1 and 2 representing different tiles at specific coordinates.I have already retrieved the X and Y coordinate for each tile, now all I want to do is duplicate(clone) the entire map. After I clone it, I want the user to be able to select any tile, and read data from it.
Drawing Pixels With Me.creategraphics In System.drawing (yay)?
Jun 3, 2012draw individual pixels, without resorting to drawing a line and setting it's length to 1. Is there an actual ability to draw a pixel that is just 1 pixel big?
View 2 RepliesDrawing On Picturebox Vs Drawing On Form?
Feb 18, 2012I need some code to draw a resizable, draggable rectangular cursor (or selection box) on a picturebox. I found some excellent code (albeit rather old) that does just that, but on a form rather than a picturebox. I have tried converting the code - basically moving things to the picturebox events (Paint, MouseDown, MouseMove etc). It nearly works but leaves a trail behind it when you move or resize the cursor. In other words, the selection rectangle is not being erased before being drawn in the new position.
Is there some fundamental difference between drawing graphics on a form and drawing on a picturebox that would cause this behaviour? Something like, when you invalidate a form and cause a redraw it erases what you did last? If not, then I just need to dig a bit further and work out how the cursor is being erased from the previous position.
Here's the original code that works fine on a form:
Private DragRect As New RectangleF(20, 20, 100, 80)
Private Adornments(7) As RectangleF
Private MouseInRect As Boolean = False
[Code]....
Click Button To Insert Drawing, Click Drawing To Get Option To Delete - VB Versus Access
Jun 21, 2010Say I have 3 Buttons, labelled: Unit 1, Unit 2 and Unit 3. When I click on any button I want a drawing of that unit to appear on screen at a pre-specified starting point. Thereafter when I press any other one of the buttons the unit drawings appear alongside each other in a line. So I could end up with:
[Code]...
Error: Operator '=' Is Not Defined For Types 'System.Drawing.Image' And 'System.Drawing.Bitmap'
Aug 17, 2009With this line...
If PictureBox1.Image = My.Resources._2star Then
I get this error: Operator '=' is not defined for types 'System.Drawing.Image' and 'System.Drawing.Bitmap'.Is there another way to say = with images?
Convert An Object Form System.Drawing.Graphics To System.Drawing.Image?
May 23, 2009Is it possible to convert an object form System.Drawing.Graphics to System.Drawing.Image?
View 4 RepliesError Value Of Type System.Drawing.Image Cannot Be Converted To System.Drawing.Icon
Jan 21, 2010Here is my favicon code
Dim oURL As Uri = New Uri(e.Uri.AbsoluteUri)
Dim favicon As Image
If oURL.HostNameType = UriHostNameType.Dns Then
[code]....
The error is Value of type System.Drawing.Image cannot be converted to System.Drawing.Icon Is it even possible to make the favicon be the icon of the form?
Value Of Type 'System.Drawing.Image' Cannot Be Converted To 'System.Drawing.Printing
Apr 3, 2009im using an MDI parent form and MDI Child. how can i print the image that's inside a picture box that's inside the Child from a button that's on the Parent?when i try to use print preview or print dialog, i can't get it to recognize that the document is the picure inside the picture box. i've looked up this error message:Value of type 'System.Drawing.Image' cannot be converted to 'System.Drawing.Printing.PrintDocument'.[code]
View 6 Replies'System.Drawing.Image' Converted To 'System.Drawing.Icon&#
Apr 9, 2012I am making a web browser using geckofx. I have put the favicon in a picture box but I have changed my mind and now I want it as the form's icon. The code for the favicon is:[code...]
The favicon works fine in the picture box but i think it will look better as an icon. If i change the line Me.PictureBox1.Image = favicon to Form1.icon = favicon I get the error Value of type 'System.Drawing.Image' cannot be converted to 'System.Drawing.Icon'. How can I get this to work?
Convert System.Drawing.Graphics To System.Drawing.Image
Jan 20, 2010I have a System.Drawing.Graphics g, which draw something in a PictureBox. Now I want to export this pGraphics to a new System.DrawingImage pImage (or Bitmap). But how?
Dim pImage As Bitmap
Dim g As Graphics
g = Graphics.FromImage(b)
[Code].....
Convert System.Drawing.Graphics To System.Drawing.Image?
Mar 10, 2010I have two graphics I'm trying to superimpose into one, then display in a DataGridViewImage cell...The Value property of a DataGridViewImage is an Image type.
Dim Image1 As System.Drawing.Image = imgl_Imagelist1.Images(0)
Dim Image2 As New Bitmap(imgl_ImageList2.Images(0))
Dim DualGraphic As Graphics = Graphics.FromImage(Image1)
[code].....
Javascript - Code Giving The Msgbox If User Select Or Not Select The Checkbox?
Jan 27, 2011IT STILL GIVES A MSGBOX IF I SELECT THE CHECKBOX BOX OR NOT ....My code below will redirect to Google in both conditions: If the user selects the checkbox, then it will redirect to www.google.com, but if a user forgets to check the checkbox then it shows the msg box with an ok button. When I click on ok it should redirect to www.google.com
I want When a user forgets to check any of the checkboxes to show a msgbox with an ok button and stay on the same page. Otherwise if user selects any of the checkboxes then redirect to google
[code]...
2010 - Cboboxes Select A Value From One And Auto Select The Index Number From The Other?
Mar 29, 2011i am trying to auto select the email value from a 2nd cbobox when the user selects a name from the first cbobox using the first cbobox's index. (the values all line up with each other just fine)This is my current code:
Private Sub cmbAnalyst_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmbAnalyst.SelectedIndexChanged
theAName = cmbAnalyst.Text
[code].....
Javascript - Make A Select Option Change Options In Another Select?
Oct 3, 2011I have two drop down. SelCurrentManuf and selCurrentModel. I want the option in selCurrentModel to change depending on the option selected in selCurrentManuf. How do i do it?
<asp:DropDownList runat="server" ID="selCurrentManuf"></asp:DropDownList>
<asp:DropDownList runat="server" ID="selCurrentModel"></asp:DropDownList>
This is how i am currently populating selCurrentModel
Public Sub PopulateCurrentModel()
Dim mySelectQuery As String = "SELECT * FROM Model where ManufID = "+ selCurrentManuf.Text+";"
Dim myConnection As New MySqlConnection(Session("localConn"))
[Code]...
but it only populates the first selected manuf, and doesnt change after
Private Sub selCurrentManuf_SelectedIndexChanged(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles selCurrentManuf.SelectedIndexChanged
PopulateCurrentModel()
End Sub
Unable To Select Multiple Column In Datatable (dtable.select())
Aug 2, 2011Unable to select multiple column in datatable
Code:
Dim Activitydtb As DataTable = DirectCast(ViewState("TalentcharacterActivty"), DataTable)
grdviewactivity.DataSource = Activitydtb.Select("SELECT
[Code].....
Aspx Set A Select Back To The Default Select After It's Been Changed?
Sep 16, 2010I need to set a select back to it's default value after it's been changed based on certain conditions.
View 2 RepliesSelect Inside Select With Microsoft Access 2010?
May 13, 2012am developing a project and i am trying to use this code with my table which is under microsoft access 2010
View 3 Replies.net - Syntax Error With Select In Select In Vb To Access SQL?
Apr 14, 2012I got a SQL statement where am selecting from an access database in vb but I get this error; "syntax error in query expression select sum(brought_qtty)" when I run my program. I imagine am doing the right thing but seems am not. How can I adjust this select? The code is below:
"select distinct(brought_price) as [Price], select sum(brought_qtty) as [Ordinary] from brought_coffee where " & _"coffee_grade=O, select sum(brought_qtty) as [Premium] from brought_coffee where" & _"coffee_grade=P, sum(brought_qtty) as [Total Qtty]" & _", sum(brought_paid) as [paid], " & _"sum(brought_bal) as [Balance]" & _"from brought_coffee, farmer where brought_date=#" & dtc.Text.Trim & "# and farmer_centre='" & cc.Text.Trim & _"' and farmer.farmer_num=brought_coffee.farmer_num"
Combobox Select - 2 Items From Single Select
Mar 7, 2012I am a beginer in vb.net. For a school project, i have chosen inventory control as the subject. WIth help from videos, i have developed some basic forms with adding/updating.
The product table design is like this:
Name
Type
Size
[Code]...
Now, i am designing the purchase/sales screens. I am showing the items name, qty, price in a datagrid. From the products table, I am able to select the 'ProductName' by giving it a combobox . I want the ProductSellingPrice also to appear in the next column of the grid.
Multiple Select Of HTML Select Element?
Mar 22, 2011I have a webbrowser control in VB 2010 Windows Form project that loads a webpage. This webpage contains select tags with a few options. I can select one option using:
Dim
cboTemp1 As
mshtml.HTMLSelectElement
[Code]....
But I need to be able to select more than one option (e.g. 1 and 6) in the select tag/element. Is that possible, the Select element has the multiple select option enabled..
Select To Multiple Sql Tables Using Select Query?
Jul 23, 2011I want to select to multiple sql tables using select query in vb.net..I have 2columns in sql table..I have tried this query.. But i'm getting error.
TextBox11.Text = Val(27)
cmd = New SqlCommand("SELECT outside,power FROM vijay21 INNER JOIN vijay22 ON vijay21.outside=vijay22.outside WHERE outside BETWEEN " & Val(TextBox11.Text) & " AND " &
[code].....
Using Treeview To Select One From The Other The Code Contains The Case Select?
Oct 31, 2010ive got a form containing treeview on the left docked, and two panels one over the other (just as for practice), so i am using treeview to select one from the other the code contains the Case select,
If
Not e.Node
Is
Nothing
[code]....
The problem is , both panels are not visible, when i select the first node the firstpanel is visible then i select the second node both panels are not visible, i return to the first node the first panel is visible.
Database - ID Select ,select Statement?
Mar 23, 2012have a table with following fields
Emp_id varchar(50)
Emp_Name varchar(50)
Emp_surname varchar(50)
[code].....
Use A SELECT Statement To Select All Data?
Apr 2, 2009I need to use a SELECT statement to select all data under a column name (like all employee names) and then to add the values to a listbox.
I usderstand that the select statement must be:
"SELECT * FROM EmployeeTable WHERE EmployeeNames LIKE *" (at least I think)
but then what? combobox1.fill ("EmployeesTable") ?
Database - Compare Two Fields In An SQL SELECT Statement To Then Select Other Fields Based On This Result?
Apr 8, 2012I have a table which contains a list of products for a company. They input data about how much stock they have and also the level at which they want to be reminded that they need to order new stock.
[Code]...
I want to list all the true results in a form which the user is then able to navigate through. What would be the best way to go about doing this?
.net - Drawing Every VisualStylesElement?
Oct 1, 2010I have made an application that can render and save a given element.
[Code]....
This works great except I have to specify which element I want, and I essentially want all of them. Is there some sort of for each that could iterate through all the possible elements?
C# - Multithreaded Drawing In .NET?
Jul 24, 2010(Edit: to clarify, my main goal is concurrency, but not necessarily for multi-core machines)
I'm fairly new to all concepts on concurrency, but I figured out I needed to have parallel drawing routines, for a number of reasons:
I wanted to draw different portions of a graphic separatedly (background refreshed less often than foreground, kept on a buffer). I wanted control about priority (More priority to UI responsiveness than drawing a complex graph). I wanted to have per-frame drawing calculations multithreaded. I wanted to offer cancelling for complex on-buffer drawing routines.
However, being such a beginner, my code soon looked like a mess and refactoring or bug-fixing became so awkward that I decided I need to play more with it before doing anything serious.
So, I'd like to know how to make clean, easy to mantain .NET multithreaded code that makes sense when I look at it after waking up the next day. The bigest issue I had was structuring the application so all parts talk to each other in a smart (as opposed to awkward and hacky) way.
I have a preference for sources that I can digest in my free time (e.g., not a 500+ pages treatise on concurrency) and for C#/VB.NET, up to the latest version (since I see there have been advances). Basically I want something straight to the point so I can get started by playing with the concepts on my toy projects.
Can't Call A Drawing Sub?
Oct 4, 2011I want to write a sub in VB like this
[code]...
mainCanvas is a canvas object on the form class, But this does not work.
Drawing An Image In VB?
Jun 4, 2012How can I draw an image in a program using visual basic, without actually drawing the image first on an graphics program or on paper?
View 2 Replies