I am using the Tabcontrol with autoscroll = True feature, when i make hidden controls visible on the tab there position is out of place, one work around for this is to set the scroll position to 0,0 by doing this...
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This is for a mapping/plotting program.
t.panel is the main panel and it has too much content to fit in one screen so there are scroll bars. x.panel contains the horizontal scale for the data points in t.panel. I drew the scale using a bitmap and set it as x.panel's background.
Setting x.panel's horizontalscroll.value = t.panel's horizontalscroll.maximum doesn't seem to work. I think this is because x.panel's doesn't have any content that causes it to need scroll bars.
I have an app that on older monitors the form exceeds the screen size. I have the autoscroll set to True. However, the left part of my form is not visible...only the right side is completely visible ... via the scroll.
View 3 Repliesi want to use a scroll bar in my VB.net form but with the AUTOSCROLL = false.
View 4 RepliesI have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
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I have five menu items that i have created as a user control and placed on the master page. Now i want one of the menu items to be visible only for particular user role and not visible for others. Here is what I did. Its not working though.
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How would I leave the vertical scroll position as it is and set the horizontal scroll position all the way left if it isn't already in that position? I've been using Me.AutoScrollPosition and have come up with code that is satisfactory but I haven't been able to always leave the vertical scroll position exactly as it is and just move the horizontal scroll position to the left limit.
View 4 RepliesI'm having an odd problem when making a form visible and not visible and it not continuing to function. Here is what I have happening. I have a main form (frmMain) that is an MDIParent. On this form I have a menu to open a second form (frmCalculate) and populate a listview from Items in the database.
As I click or select items in the listview on frmCalculate the tag is read and data is pulled based on the id stored in that tag and fills in various fields on the form. This works great. However, I also have a context menu attached to the listview that allows me to perform a "what if" scenerio on the items I am calculating. When I select this menu, I hide the frmCalculate and open the frmWhatIf form where I can mess around with values on the item I had hilighted in the listview on frmCalculate. Nothing is pulled from or written back to the database here, all the information is filled in from fields on frmCalculate. It just allows me to look at rising costs and how they will affect my margins.... anyway.
If I then close frmWhatIf, it brings my frmCalculate back by setting its visible propery to true (never closed frmCalculate, just hid it). At this point if I click an item in the listview I get an exception for a null reference. IF however I never hide frmCalculate, I can open and close frmWhatIF without ever having an issue. Why do I lose the functionality to select items just by hiding and unhiding the form? As a test I added two menus to the toolbar on frmMain one called hide and one called show. I then opened frmCalculate with original menu item to populate the listview and selected a few items to test that it was working and then using the hide menu I made the form invisible and the show button to bring it back. This yielded the same exception so without even opening frmWhatIf the problem still occurs.
I have a DataGridView with a panel above it, that contains a group of textboxes above each column. My DataGridView has a horizontal scroll bar. What I want to do is when the DataGridView scrolls horizontally, scroll the panel with textboxes above it, so they stay aligned.I tried handling the DataGridView's scroll event, but I'm not sure what to do with it.
View 1 RepliesI have set the panel on visible as false, so it would not show up when I run the form. I am trying to set the visible as true when I enter my mouse on panel location, but it doesn't show anything....
Private Sub Panel1_Enter(ByVal sender As Object, ByVal e As System.EventArgs) Handles Panel1.Enter
Panel1.Visible = True
End Sub
How to set the panel visible as true when I enter my mouse on panel location while the visible are false?
I am stumped on this one. I have a panel (pnlKeyPad) that won't change the visible property when I try to set it to True. But when I try to set the Dock Property to DockStyle.Fill it succeeds. I have tried them in different orders, setting the parent property to the splitpanel and nothing seems to fix it. The panel is on a splitpanel that is visible. The panel is set to visible = false by default.
Any ideas of why this panel won't switch to visible when I specifically set it to visible?[code]...
I know how to turn a control's visible property to true or false, the only thing I don't know is: If I have, for instance, 40 group boxes in which only one is visible, when I click on a button, the first group box visible = false and the second group box visible = true, and when I click on it again, the second group box visible = false and the third group box visible = true, and so on I don't want to write the codes for every controls, since it will be quite time consuming, I want to use fewer codes to achieve this objective,
View 10 RepliesI use lots of panels to hide controls and display groups of controls.
If sender Is BDVActive Or sender Is BDVCompleted Then
BDVCases.Visible = True
BDVCases.BringToFront()
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Is there anyway to tell if a scroll bar is visible in a listview?
When I'M drawing the listviewitem, I need to know if the vertical scrollbar is visible so I can make sure to make my item's width smaller than it normally should be.
Below is the exception code info. when I try to make form visible for the first time from another form then I get an exception code. something like 'a required variable not set'
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In Form1 I have a SplitContainer with Panels.In SplitContainer1.Panel2 i have a Form2 (Inherit) and a GroupBox1.
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When i Start the Application, Form1 Appear with 2 Panels. In SplitContainer1.Panel1 is the Button1 and in SplitContainer1.Panel2 is not visible the GroupBox1.I press the Button1 and nothing happen. Why? How can i make visible the GroupBox1 by Button1?
I have one form with one tabControl with two tabs, in each one I have one dgv, in the visible change event I create and add a new button column, that will be placed at the end. Now the "problem", if the first tab it's selected when the form becomes visible, the column it's placed in the correct position (last), and in the second tab the column it's placed in the third position.
If I do this with the second tab selected when the form become visible, the column it's placed correctly in this one, and in the third position in the first one... The code that I use, it's very simple, every datagrid it's bounded to a datatable, I tried the add method, then I tried the insert method, then I manually set the display index for each column, and none of this options solved my problem...
How can I keep the scroll position of a text box after an update? i found this in C# but I could not find anything in VB .NET yet.[URL]...
View 11 RepliesI'm making a web browser using TabControl...I need some codes Make the button that "go's" execute when clicking enter, aswell as pressing the button itself.A right click menu, aswell as Copy , Paste, and Cut functions Code to print the current page on tab control. and how to add bookmarking (through a top menu strip)
View 6 RepliesI have an ASP.NET form with multiple steps (using the Wizard control). When advancing to the next step, I want the page to start at the top, but for some reason it is maintaining the scroll position. I set the Page.MaintainScrollPositionOnPostback property to false, and I have the next button event handler set it to false also. I don't have the property set to true anywhere. But it is still maintaining the scroll position. What could be the issue here?
View 1 RepliesI was wondering if there is a way to keep the same scroll position in a datagrid view as the app jumps around to various rows (driven by the user selecting different timestamps or address). After the jump happens, the horizontal slider moves all the way to the right, but I want it at the same position as before the jump (or at lease go all the way to the left).
I have tried numerous things (datatable.AcceptChanges(), etc) but haven't been able to figure it out yet.
I'm looking for a simple, efficient way to get the position of the browser vertical scrollbar and save it into a session variable in an ASP page. What I'm trying to do is when the user changes a page I've the scroll position stored in a session variable so that when the user returns to the page the page will scroll to their last position.Is there a way to do this? I've seen examples of persisting the scroll position on postback but nothing yet doing exactly what I'm trying to do [code]
View 1 RepliesWe have a page which will diplay around 150 records at a time and for each record there is a link to input data. I want to be able to click that link on any record and have this one div with all the fields and updatepanel popup next to it.
I have found many JQuery examples of this, however none of the JQuery examples will allow me to Async-postback from the div which is very annoying. I also found examples where I place a div below each link and it pops up nicely, however this wont work because I need this to be only one div which contains the updatepanel and the associated inputs.
Do you know of a simple way to popup a div relative to the link? preferrably to the lower left of the onclick link/object.
I cant use the CSS left/top/right/bottom stuff becasue I need this to be relative to the object and not the entire page.
I am now using a datagridview that uses just 1 col and 1 row, but is set such that it has a large display width to display a lot of graphics.
The horizontal scroll bar is active to help me view all the data, but the scroll bar defaults to the LHS.
How can I make it default to the RHS?Additionally, when I move the scroll bar, the displayed data seems to get corrupted - do I have to re-paint the graphics every time the scroll bar position is changed?
What I am doing is I have an image in the webbrowser control that I am trying to capture and save to my computer but the image url is created dynamically and destroyed on the loading of the page (which keeps me from being able to use httpwebrequest to retrieve the image that corresponds to the page I am currently on). To get around this I am resizing my webbrowser control to the size of the image and taking a snapshot of the browser window itself.
The problem isn't with taking the snapshot... it's that when I take the snapshot it is snapping an image of the browser window prior to scrolling. I would like to figure out the scroll coordinates so I can basically write a function that will "pause" the routine and wait until the scrolling coordinates match that of where the image is located and then proceed to take the snapshot.
I have tried the .ScrollTop / .ScrollLeft values and .ScrollRectangle.Location.X/Y but I keep getting 0 as a return. Does anyone have any information on this? I've searched all over google but only find people asking the same question as me but recieving no answer.
A panel with enabled scrollbars has many buttons. If I push the tabulation key, focus navigates between buttons.When a partially visible button has focus, the panel scrolls itself in order to completely show the button.
View 1 RepliesI have a windows form which contains a group of panels in a flowlayout control. Each panel has a button acrossthe top which is always visible and clicking on it expands the panel to view the other controls on it. clicking on it again shrinks the panel back to the size of the button. A simple form of menu. The flowlayout control has autoscroll enabled and as enough panels are resized (opened) they obviously are too big for the form and a scroll bar pops up.To get the most recently opened panel in the viewable area I use
FlowLayout.ScrollControlIntoView(pnECBF)
where pnECBF is the panel just resized. This works but places the panel at the bottom of the form i.e just in the visible area. I want the user to be able to see the panel AND the next menu button which is on the subsequent panel. So basically what I want is the panel into the visible area +25 pixels for the next panels menu button.
I have a RichTextBox and I need to find the position of the vertical scroll bar.
Is there any way to do this without Pinvoke? If not, what is a way to do this WITH Pinvoke?
I need to return an integer value.
I'm trying to make an autoscroll enabled panel that will scroll if the mouseposition.x > panel.location.y However, I cannot seem to find a panel.scroll() function. Is there a way to programable make the control scroll?
View 1 RepliesI have a CheckedListBox with 6 different indices that all correspond to a textBox. For example: Index 0 corresponds with TextBox1, Index 1 corresponds with TextBox2, and so forth. When the user selects the item in the CheckedListBox, the TextBox with that particular index becomes visible. I am at a loss. I have been working on this for 4 days now, with no end in sight!
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