I am trying to make a customer class that will simply make a bunch of controls (hotspots) Visible value = False.
For instance: WinStartSpot.visible = False
Thing is I have roughly 60 "spots" that need to be turned on and off as the user clicks through the program (its a very simple OS simulator) I tried to make a class using boolean return but that failed miserably. how to code a class like that?
I 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
[code]....
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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I'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.
String s = "test"; String is a class, so to use it we should create an object of it. But rather we just make a reference of it and give it a value. How is it possible and what concepts are used in it. The metadata of String class shows the following :
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Button.performclick not work when it visible = false?
View 4 RepliesI have a document management system which creates a report showing people who own which document. There are times where people have 0 documents and in that case I would like the repeater table for that person to not be visible. I have looked around for a while and have not had much luck, I have repeaters nested inside repeaters but if the first repeater is not visible the rest should follow.
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A DataGridView in my VB.NET 2008 program contains over 15,000 rows. I loop through the rows, totalling groups of rows and appending 'total rows' and one 'Final total row' to the DataGridView. That works fine. I want to initially hide all rows except for the total rows, giving the user the option to show all 'detail' rows. If i place the statement << dgvTitleCounts.Rows(intRow).Visible = False >> in the loop, execution time increases by three minutes and that is unacceptable.
I see two options: (1) find a faster way of making all rows invisible; and (2) place the total rows in a separate DataSet and bound DataGridView.
i write Me.Visible = false a statement in the load event of the form my application has only one form and it call itself to hide. but when i run the program it doesn't hide itself i put the breakpoint on the statement to see if it even executes or not. it executes fine but no effect what it suppose to do i also have a notification icon added to a form to see it running in system tray.
View 5 RepliesI have a couple of textboxes whose databinding's text is set and also readonly is true and visible is false. but when I try to read their values they are all null unless I turn their visibilty to true. The same method is also needed to add a new row to the table (when using bindingsource1.addnew()).
View 9 RepliesI got a couple of issues with my windows application VB.Net. I seem to cannot set the form to be invisible before it shows up for a second, there is no option in the properties of a form and also if I set the form to visible = false before the form is loaded it doesn't work.
So this does not work:
Browser.Visible = False
Browser.Show()
and this does work but the form shows up for a second which I am still not very happy with
Browser.Show()
Browser.Visible = False
Can someone clarify if there is ever a need for the below?
When setting a textbox "Visible" property to False is there any reason why I should also set the "Enabled" property to false.
i want to make a match game but i don't no how to make the timer to wait until two buttons are visible = false this is my exsample:
Button1.Visible = False
If PictureBox1.Tag = "major2nd1" And Button11.Visible = False Then
Timer1.Stop()
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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]...
Dim lv As Integer
For lv = 1 To 33
picPileCard(lv.ToString).visible = False
Next
That's the code but its saying the name hasn't been declared.
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 RepliesHaving an issue with my data gridview. I've set the visible property of the ID column to false, and in the designer the column is hidden, yet it still shows up when i run it. Now if i set it to True it shows the column twice.
View 3 Replieshow to retrieve the selected row cell value if it is visible property is false in gridview ?
View 1 RepliesI have a form which won't open properly under certain circumstances if a particular Button is set to visible = false. Under the same circumstances if the Button is set to visiblbe = true the form does open properly or if the line of code at a certain place where it is set to either visible = true or visible = false is commented out or not there then the form opens properly. If any one of the 5 phases on my form are turned on then the problem doesn't ever occur but if none of the phases are on then the problem does occur. I just found a fix for the situation but I still am not clear about what exactly is going on.
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Since I am making a program with quite a few users with different access levels, I usually turn all the toolstripmenuitems to visible false first, before turning some of them to visible true again as specific to the users.[code]...
View 3 RepliesI have a graphics application that uses graphics paths. Code seen below. You can use keyboard characters to display information. When a label is set to visible = false after being turned on for a number of seconds a stray image is generated. The stray images are also sometimes generated when the label is first made visible.
' points p10b, p2b etc are defined elsewhere
Dim GrpPoints As PointF() = {p10b, p2b, p3b, p11b, p5b, p6b, p12b}
GrPath = New GraphicsPath ' 7 path points
GrPath.AddBeziers(GrpPoints)
[code]....
I tried stopping the code from running when the label is set to visible = false but the stray image is still generated but just later. If you want more information let me know.The white arrows points to the stray image that is created just after a label that displayed information was set to visible = false
I 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!
CODE:
I am disabling combobox in VB.net. But in disable mode it not visible properly. I tried changing both BackColor and ForeColor but it is not working.
Code :
cmbbox.BackColor = Color.FromName("Window")
or
cmbbox.ForeColor = Color.FromName("Window")
I am making my component enable false.But I want to make it viewable.You can reffer the link.This is what exacly I want but in VB.Net : A combobox that looks decent when it is disabled
VB GridView control will not allow code in the vb code file to access a data column that has its visible property set to false. When it is set to true, the data column can be accessed with no problem. Any suggestions as to how to correct this? I have looked through the documentation, text books, and I have not found anything that gave me any clue as to what the problem could be. I thought that the property was just applied to the column, not that it would remove the column from being accessible.
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The basis of the program is that the user enters info into to text boxes then hits a button, when the button is clicked and all the parameters are met, the visible property of a rather large picture box becomes true. What I want to do is have the form start off small, just big enough to hold the labels, text boxes and buttons and then resize when the picture box is made visible.
View 2 RepliesI have the following in my code:
lblIsInvalid.Visible = True
I have noticed that even after going to this line, it does not make the label visible. I am thinking this may be a refresh issue as the last line hit is lblIsInvalid.Visible = True. Is there any refresh property that I may not be aware of for a label control.
I have set up a GridView as set out below. You can see there are four LinkButton's per row. What I want to do is make certain LinkButtons available depending on which row they appear in.
<asp:GridView ID="FormsGrid" runat="server" Width="657px" Height="250px" DataKeyNames="FORM_NAME,FORM_ACCESS,STATUS,ID"
AutoGenerateColumns="False" DataSourceID="SqlDataSource1" >
<Columns>
<asp:BoundField DataField="DEADLINE_DATE" HeaderText="Date" DataFormatString="{0:d}"
SortExpression="DEADLINE_DATE" />
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When I try to make them not visible use the code below in FormsGrid_RowDataBound, it doesn't work and a get a null value error.
if e.Row.Cells(4).Text = "1" then
Dim FLbtn As LinkButton = FormsGrid.FindControl("FormLinkBtn")
FLbtn.Visible = True
Dim NRbtn As LinkButton = FormsGrid.FindControl("NotReqBtn")
NRbtn.Visible = False
[Code] .....
Also when I click say the FormLinkBtn, how do I determine the value of the fields in that particular row?
I'm making a project that has a bunch of different types of calculators in the same tab within a tab control. To organize these calculators, I put each one in a groupbox, there are about 5 or 6 in all. When I was finished designing all of them, I placed all the groupboxes in the spot they needed to be, but once I started creating the events for them to be visible or not visible there are a bunch that don't show up. I think it has to do with the fact that VB thinks that the groupbox is part of another groupbox that isn't visible so it doesn't show.
How can I go about only showing a single calculator at once in my tab?
I have 2 group box components and both are same size,font,location and visible is false. When i click button2, the groupbox1 won't appear(the group box2 is on bottom n group box1 is on top).
Example:
button1
groupbox1.visible=false
groupbox2.visible=true
button2
groupbox1.visible=true
groupbox2.visible=false
Because i want to show the different,so the location have a little different(actually both are same location). I think my code is no problem. The problem i guess is both component cannot locate at same location?
I am trying to hide Hyperlink visibility in Repeater if there isn't any Text value in Hyperlink. Something like this:
Protected Sub rptReferenca_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.RepeaterItemEventArgs) Handles rptReferenca.ItemDataBound
Dim lnkThumb As HyperLink = CType(rptReferenca.FindControl("lnkThumb"), HyperLink)
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