Forms :: Clear Lines Drawn On A Panel?
May 20, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
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Clear Lines Drawn On A Panel?
May 20, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
View 1 RepliesClear Lines Which Previosly Drawn?
Jun 4, 2011how to clear lines drawn on a panel.on some event i want to clear lines which r previosly drawn
View 3 RepliesVS 2008 Clear A Rectangle Drawn?
Aug 25, 2009So; I've drawn this rectangle vb Dim zr As New Rectangle(100, 100, 100, 100)e.Graphics.DrawRectangle(Pens.Red, zr)
View 4 RepliesAdding Drawn Lines To ComboBox?
Mar 7, 2012When I populate a combobox with items that have a line and text drawn in the DrawItem event, only the line image for the first item in the list appears in the drop down portion of the combobox. The other items (index>0) shown in the drop down portion of the combobox do not contain an image of the line, yet each item in the list does contain the designated text. The correct line image does appear when the user selects an item and the drop down portion of the combobox is not visible. How can I get the line image to appear in every item of the combobox when the drop down list is activated?
Public Class Form1
Friend WithEvents ComboBox1 As ComboBox
Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Me.ComboBox1 = New ComboBox
With Me.ComboBox1
[Code] .....
Drawn Lines Do Not Remain On Form
Apr 15, 2010I am drawing lines on a picturebox - not in the paint event. I realise that if I resize the PictureBox the lines won't be redrawn - but the PictureBox is fixed. If I display a MessageBox at the end of my draws the lines do not remain on the screen. This was OK with VB 6.0. Hoe can I stop them being erased?
View 2 RepliesPrevent Graphics Drawn In Panel From Refreshing?
Mar 17, 2009I'm making a plotting program. The panel (vs picturebox) is necessary because the data doesn't all fit into one screen so scrollbars are needed. I'm using graphics to draw the background layer and buttons for the data points.
When I scroll, the background is redrawn incorrectly since the top left corner of the panel is no longer the top left data point. Ideally, I'd like to prevent the background layer from redrawing entirely (after the initial draw). Alternatively, how do I take in consideration the new position of the scrolled panel in drawing the shapes & lines in the background layer?
VS 2008 Saving Lines Drawn In Pictureboxes
Aug 21, 2010On my form, I have a picture box that starts off blank, but draws lines according to mouse click events.
I am now trying to test whether there is colour in individual pixels, yet I am yet to find solid code.
My initial code was along the lines of
Dim bitm as bitmap
bitm = PictureBox1.Image
This would come up with nothing, as there wasn't any image assigned to the picture box.
I was wondering how I could save the lines drawn and use that as a bitmap to test pixel colour.
Clear Contents Of A Panel?
Feb 21, 2010I am doing a school project and have created a small program that allows the user to create a binary search tree and then visually displays it on the screen as a familiar tree structure, how the addition, deletion of nodes in the tree works along with many other things such as different tree traversals. I currently using a large panel on the main form and then adding user controls containing a textbox that displays imputed values,then using the panels paint event I draw a line between the user controls, this works fine however for deletion of a node I need to clear the main panel of the nodes that will change and add them to the panel again or just clear the hole panel and redraw the whole tree
View 1 RepliesHow To Clear Drawn Text Before Drawing A New Text
Dec 1, 2010I'm looking to see if a little more control is possible though. cpustring = string and fontstring = font, both defined earlier in the program.I'm not sure how to clear the drawn text before drawing a new text. I tried with g.clear(color.transparent), but that creates an ugly flickering background for the picturebox (the picturebox is already set to transparent background).I'd also like to be able to fit the text in the picturebox area, max width/height as defined by picturebox, not by fontsize. Font can stretch either way as long as it fills in the picturebox.
View 6 RepliesClear A List Box On Panel.hide?
Aug 15, 2011I am using this code to clear the contents of my panel
For Each c As Control In PanelEdit.Controls
If TypeOf c Is RadTextBox Then
DirectCast(c, TextBox).Text = String.Empty
[Code]....
the idea is if a user opens a different panel and then comes back to the panel they were in all the data is cleared.
Forms :: Remove Item From An Owner Drawn Listbox?
Jun 9, 2009I tried to add icons to the items in the listbox(owner drawn listbox- variable). I m able to do it. But after adding the items, according to my requirement i need to remove few items now and then.I used:Listbox1.Items.Remove("Aqua")This removes the last item from the listbox instead of the mentioned one. the same is done even if i try to remove the selected index item.
View 2 RepliesClear DrawRectangle In Windows Forms?
Jun 11, 2009I am drawing a rectangle, sleeping for a few milliseconds--then I want to clear the rectangle (The rectangle is sitting over a graphic so I can't simply cover it up with another rectangle)[code]...
View 3 RepliesError 2186 On Clear Forms?
Dec 15, 2011Public Sub Clear()
Form_Main.ctl_InspName.Value = ""
Form_Main.ctl_ESN.Value = ""
Form_Main.ctl_ToAProcess.Value = 0
[code]....
Forms :: How To Clear Datetimepicker Control
Apr 2, 2009how to clear the datetimepicker control?
View 1 RepliesForms :: Clear History In Open File Dialog?
Jul 18, 2011I want to clear the history in an open file dialog, so that previous opened files won't be shown if a user clicks on the drop down arrow behind "File name". I have created an open file dialog and named it "ofd_openen".
Then I 've tried:
ofd_Openen.SafeFileNames = False
and also
ofd_Openen.FileNames.Clear()
but that doesn't work.
Panel Alignment - Center The Red Panel In The Middle Of The Dark Grey Panel ?
Jun 6, 2009I need to center the red panel in the middle of the dark grey panel, when you resize the form the red panel should be in the middle, and the red panel can't be resize, anyone have a code or property to do this?
View 2 RepliesForms :: Clear The Dgv When The User Blanks The Combobox Without Necessarily Changing The Selection Index?
Oct 25, 2010I have just realised that ComboBoxes don't have a Change event. I have a combobox filled with a few items, eg. Bakery, Deli, Fruit & Veg, etc. Choose one of these items, all the related items show in the dgv. However, when I blank the text in the Combobox (press Delete key whilst Combobox has the focus), what event fires so I can blank the dgv? The combobox does not contain a Blank item. Even if it does, the Blank item only fires the ComboBox1_SelectedIndexChanged when the user scrolls down to, or clicks on, the blank value.
I want to clear the dgv when the user blanks the combobox without necessarily changing the selection index.
Forms :: Closing A Form In A Panel
Aug 3, 2011Iam a beginner to vb.i have a project work,related to Quotation software.i want to know how to unload all forms that are loaded on to a panel when clicking a Button.here i did some codes, in that, one error is displaying like "Collection was modified; enumeration operation may not execute." the code is given below:[code]
View 1 RepliesForms :: Dock A Toolstrip To The Top Of One Panel ?
Jan 18, 2011This should probably be a different topic, but the reason I was cutting/pasting is that I have a split panel form. I dock a toolstrip to the top of one panel, and then add a datagridview control. I set it to dock to parent, and it does, but goes under the toolstrip, hiding the top of the grid and scrollbar. Not acceptable of course. Is there a setting that I'm missing?
View 2 RepliesForms :: How To Change Location Of Panel
Mar 7, 2009i want the panel to center itself evertime i change the size of the window. how do i do it? panel1.location.x=form1.location.x doesent work.
View 1 RepliesForms :: Locate Panel To Near Button
Aug 10, 2009i have 12 button and 12 panel hooked at this button.but sometime after i clicked this button,that panel not at position i want.So, how to locate this panel for good looking and at position i want? to left,up and down.tq for your help.
View 3 RepliesForms :: Scroll Bar On A Winform Panel?
Nov 19, 2010Is there a way to hide the scroll bars on a VB.Net panel? We have written code to allow the user to scroll using a touch screen and do not need to see the scroll bar. I know it has to be there for the scrolling to work, but would like to hide it from view.
View 3 RepliesInsert A Collapsible Panel In Forms?
May 5, 2010how to insert a collapsible panel in forms??? i need to create a simple quiz application, so that i want a panel.
View 2 RepliesForms :: Add Several Labels (boxes) Onto A Panel - If Condition
Apr 6, 2011I'm currently trying to make a beat generator, which allows you to add several labels (boxes) onto a panel, and then sound will be played when the "play slider" reaches the same x-value. However, i can't make the slider find the boxes. OK, so this is what I've got so far! Clicking my button, a label named sound0, sound1, sound2 is added to my panel_back (which is the background of the player) Private Sub btn_addkick_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_addkick.Click
[Code]....
Forms :: Error When Creating Panel At Runtime
Jun 23, 2010When I want to create a new panel at run time when I clicked a radio button it displays an exception at panel2.location.
Dim panel2 As Panel
Private Sub RadioButton5_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles RadioButton5.CheckedChanged
panel2.Visible = True
panel2.Location = New Point(200, 300)
panel2.Size = New Size(200, 300)
Me.Controls.Add(panel2)
Forms :: How To Make Rocket Falling From Top Of Panel
May 6, 2009I am working on a small game, Moon Lander and I figured how to make rocket falling from the top of the panel which is on the form. I want to have fuel burning feature so I can land rocket properly on the bottom of the panel.[code]If anyone knows how to burn fuel (minus the gravity) so rocket starts to slow down, and eventually stop, then rise up,
View 2 RepliesForms :: Listview - Cannot Increase The Size Of Panel
May 12, 2009I am using a textbox which handle the name of the employee and when it get focus i am using a listview with detail view which shows all available employees and user have to select any of them. I am using all this control in a panel, unfortunately listview need more size then panel, and i cannot increase the size of panel. But placing listview inside the panel make its child control and hide the half list view. Is there any way that i can show full list view control under the textbox?
View 2 RepliesForms :: Open An Instance Of Explorer.exe In A Panel
Oct 24, 2008I'm having a hard time getting this code to work, here's the code, I'm trying to open an instance of explorer.exe in a vb.net panel. Imports System.Runtime.InteropServices
[Code]...
Forms :: Panel Offset Index Property?
Oct 19, 2009I use drag'n'drop from a datagridview to a panel. The panel holds an array of objects (think rows) so that the items from the datagridview can be dragged to the different objects. I use the y-index from the top of the panel to define what object the item is dragged onto.This works great as long as the object is visible from the start. However, if I scroll down to an object and then drag the item from the dgv, it gets released on the wrong object, as the y-index doesn't take into account the number of pixels I scrolled down. So, what I need is (if it exists) the scroll offset property for the panel, i.e., the number of pixels that I scrolled down. (Then I can add this offset integer to the y coordinate on which the user drops his/her object.)
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