VS 2008 Textbox's Value Is Null When Visible Is False?

Dec 16, 2009

I 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()).

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VS 2008 Visible = False Before The Form Shows Up?

Feb 21, 2011

I 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

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VS 2008 Button Set To Visible = False Causes Form To Not Open Properly

Jan 1, 2010

I 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.

[Code]...

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VS 2008 : Stray Graphics Path Image Generated When Label Is Set To Visible = False?

Oct 11, 2009

I 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

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Make Several PictureBox Images Randomly Visible = False And Then Back To Visible = True Giving The Appearance Of Flashing Or Blinking Images?

Jun 28, 2010

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]....

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Button.performclick Not Work When It Visible False?

Aug 1, 2010

Button.performclick not work when it visible = false?

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C# - Make A Repeater Table Visible = False?

Aug 3, 2010

I 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.

[code]...

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Class For Making Object Visible.False

Dec 21, 2011

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?

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DataGridView (slow Processing Of 'visible = False')?

Jun 19, 2010

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.

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Me.Visible = False In Load Event Of Form?

Jun 1, 2009

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.

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VS 2010 Setting A Property Visible To False?

Sep 17, 2011

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.

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Make The Timer To Wait Until Two Buttons Are Visible = False ?

Mar 13, 2011

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()

[Code].....

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Panel's Visible Property Won't Change From 'False' To 'True'

Mar 25, 2012

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]...

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Setting Large Number Of PictureBoxes To Visible - False

Mar 7, 2010

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.

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Turn A Control's Visible Property To True Or False?

Aug 11, 2011

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,

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VS 2010 Datagridview - Set The Visible Property Of The ID Column To False

Mar 21, 2011

Having 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.

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Retrieve The Selected Row Cell Value If It Is Visible Property Is False In Gridview?

Jan 6, 2011

how to retrieve the selected row cell value if it is visible property is false in gridview ?

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Make Toolstrip Separator Visible False With Rest Toolstripmenu Items?

Dec 29, 2011

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]...

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Set Database To Null When Datetimepicker.check Is False?

Aug 12, 2011

How to set database to null if datetimepicker.check is false?what is the code other than empy string ""?[code]...

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VS 2008 - Make Textbox Visible When MouseOver

May 27, 2011

I'm trying to make a code that say's: when the mouse is in the area of the toolbox1 then the toolbox1 becomes visible when it leaves, it becomes invisible.

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C# - Question Mark Indicates That This Is A Nullable (tri-state) Bool That Can Be True, False. Or Null

Aug 4, 2009

I am working through my new MVC book and of course, the samples are all in c# as usual. There is a line of code that says public bool? WillAttend { get; set; }

The author explains that the question mark indicates that this is a nullable (tri-state) bool that can be true, false. or null. (A new C# 3 convention.) Does vb.net support any convention like this. Certainly I can declare a boolean in vb.net and I can explicitly set it to Null (Nothing in vb.net).

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VB GridView Control Does Not Allow Code To Access Column When Column Has Visible Property Set To False

Apr 1, 2010

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.

[Code]...

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2 Group Box Components And Both Are Same Size,font,location And Visible Is False - Both Component Cannot Locate At Same Location

Mar 13, 2012

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?

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Asp.net - How To Make Hyperlink.Visible=False If Hyperlink.Text = 0

Jan 20, 2011

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)

[Code].....

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Set Calling FORM Visible = False By CALLED FORM

Sep 6, 2010

Requested were made by Businese Analyst to set the few Main FORMs VISIBLE PROPERTY TO FALSE when the POPUP FORM is loaded.

[Code].....

When the MAIN FORM loads the POPUP FORM, on the FRMPOPUPCUSTOMER-FORMLOAD even, it has to set the MAIN FORM Visible to False.

When FRMPOPUPCUSTOMER FORM IS UNLOAD it has to set the MAIN FORM Visible = TRUE.

How to the coding is to ensure that different MAIN FORM when loaded FRMPOPUPCUSTOMER it will turn the MAIN FORM Visible to FALSE.

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Set Form.Visible=False In Form.Load?

May 12, 2010

Based on code that executes in Form.Load, is it possible to disable displaying that form after the handler for Form.Load is complete? I'd like to have a commandline switch that disables showing the form, but still runs the application. I've tried this, but it doesn't work:

Code:
If InStr(Environment.CommandLine.ToLower, "/trayonly") Then
Me.Visible = False

[code]......

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VS 2008 TextBox DataBindings - Default Null Value Doesn't Show Up

Jun 29, 2010

I have a form that has several controls, most of them are textboxs. All controls are binded to a bindingsource. The controls that always have values, they are displayed correctly, but the others ones that have null values in the data source, the default null value doesn't show up. This problem it's driving me crazy... There must be something that i'm missing. Some of the code that i had used with no luck:

[Code]...

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Validation For Textbox - True / False?

Sep 12, 2011

Can I validate a texbox to have only True or false? You should enter True or false in the textbox.

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Change TextBox ForeColor When That Is Enabaled = False?

Aug 16, 2005

How can change TextBox ForeColor When that is Enabaled = False?

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Get A Value From A Textbox That Is Not Visible?

Dec 25, 2009

Does a textbox have to be visible = true to get it contents in code? I am finding that if I make a textbox visible = false then there is no value there when I reference it in my code. I am using the Text property. Am I doing something wrong or does the textbox just have to be visible?

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