I'm creating a usercontrol with a splitcontainer. I can reposition the split when running, but when designing on a form I can't adjust the position graphically, I can only do it by typing a new SplitterDistance. Is there a way to get a grip on that position at design time?
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I'm developing a form with usercontrols which have to be edited during disign.The project has a connectionstring in de my.settings.The usercontrol has a property which is also called connectionstring.Now, I want to pass the project connectionstring to the usercontrol connectionstring, when the usercontrol is dragged to a form. (All during design)
View 2 RepliesI have a TabControl on a UserControl. I want the UserControl to behave like a TabControl as usual (it contains only the TabControl and a Contextmenu), including Design-time behavior.I have spent the last two weeks finding out how to add the Design-time behavior and I think I have come a far way.The problem is with adding TabPages during Design-time (while the UserControl is a custom tabcontrol, it is using regular windows forms TabPages).In the Designer class, I have the following code to add a TabPage:
vb.net
Dim dh As IDesignerHost = DirectCast(GetService(GetType(IDesignerHost)), IDesignerHost) If dh IsNot Nothing Then Dim i As Integer = tc.SelectedIndex Dim name As String = GetNewTabName() Dim tab As TabPage = TryCast(dh.CreateComponent(GetType(TabPage), name), TabPage) tab.Text = name tc.Controls.Add(tab)
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So it would add the control to the TabPages collection if it was a TabPage, and use the regular routine otherwise.
(I'm now using 'tc.Controls.Add(tab)' again instead of 'tc.tabCtrl.TabPages.Add')
But, I don't think the designer even gets that far because it is telling me I cannot add TabPages to my usercontrol, because only TabControls can accept TabPages... How can I make my usercontrol understand that it is a TabControl (without Inheriting from a TabControl?)
I am having a problem figuring out one thing with my program. It's about SplitContainer. To elaborate, I put a SplitContainer on a form. It divided my form into two parts, which I wanted. On the left side panel there are buttons, and when I click on a button I would want to display another form inside the other part of the SplitContainer which is Panel2.
View 17 RepliesI have a custom UserControl that I am hosting inside a FlowLayoutPanel. Each time that I run the application the control will disappear off the hosting form's design view. I have to close the form's design view and then reopen it each time. The control is not getting removed in any way, just isn't being shown.
Edit, alright this got a bit weirder. Only the first usercontrol that I put into the FlowLayoutPanel disappears. This problem also happens on a project Build and Rebuild.
in VS 2008, is there a way to design a ContextMenuStrip in a designer without a relation to a specific Form or UserControl class? For example,if you need the same ContextMenuStrip in Form1, Form2 and Form3, in which of them am I to design the ContextMenuStrip? Do I have to add a "pseudo-Form" to the project that contains my shared ContextMenuStrips and create only one instance of that Form, or is there another way? I consider this a programmatic hack, that's why my question is whether the IDE offers something better.
View 10 Repliesusing VS2008, targetting framework 3.5I have a rather complex UserConrol which does some of its own rendering.I display this UserControl on a form.Opening that form in the Designer creates an instance of the UserControl in the Designer, which tells me a NullReferenceException is occurring in one of my rendering methods.I have attempted to correct this by making alterations to the UserControl's default constructor, but have not found success.
View 1 RepliesI have been making a control and have added a property for a list(of CustomClass). The custom class contains a string, an image and a list of another custom class which contains a string and an image. I have added this property to the designer by adding the browsable attributes and all appears to work correctly with this.
My problem comes when running the program. I can set all of the values within the property and I can go back to them and they are saved, however, as soon as I run the program, the values are wiped out as the property is set to Nothing.In order to allow my property to be edited and saved, I realize that I must initialize the list and have done so in the accessor method of the property (if the property's value is nothing).
I have modified the values in the designer and placed a breakpoint on all of the items which use the property and it's underlying field, as well as on the property's methods itself. The first breakpoint hit is of it being accessed and the value is always nothing.
I'm not sure where the values are supposed to be stored as I have checked the designer code where it would normally store types such as strings and I have checked the resources to see if they have been saved there (like an image would be). After running the code, the values in the designer are wiped out also.
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I'm a newbie in visual basic dot net. I tried to create a design in run-time. Here's my simple code.
Dim frmLogin As New Form
Dim lblUserName, lblPassword As New Label
Dim txtUserName, txtPassword As New TextBox
[code].....
I work with VB 2008
I need to design my reports by users
please tell my the best way,or the best report type
How do I test for design time? The following code works during RunTime but fails in Design Time?
I assume it is because there isn't a Me.Parent.Name at design time.
Dim strGetColors As String()
strGetColors = fncGetColors(Me.ParentForm.Name)
[code].....
I want to have a bunch of different screens, yet I don't want to have to use 20 different forms (I'm pretty sure that's bad practice anyways), and I don't want to lay down all the controls at once in the designer because then things get messy. I had an idea of running a sub on startup that would dynamically generate all the controls I need with all the right coordinates and settings, and then dump al the ones needed for a specific screen into a Panel. Then I return an ArrayList of panels, and pull out the correct panel to attach to the form when I need that screen. The only problem is that my form will not have any implicit knowledge of its controls, so I'm assuming I wouldn't be able to use the WithEvents / Handles. keywords to declare handlers in the form class (which is what I'd rather do).
View 3 RepliesI want to bind Grdiview with DB.I have a table Products with three columns.Suppose I add three columns at design time in gridview, If I run my following code First Three columns are blank & next three columns are bind with data.
Suppose I do not add any column in GridView & runs the foll. code,then the output is coming correct.
But i want that I add columns at design time
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OK i have a combobox on the form. I have entered 4 values. I have left the TEXT field blank.Is there any way i can set the default SELECTEDINDEX of the combobox in the form design window. I know how to do it using code. If i set the TEXT field to one of the item values will it automatically select the corresponding INDEX
View 1 RepliesI created the dataset and connection to my SQL database at design time to make it easy to drag and drop bound controls and stuff to my form. My problem is this, when I did this it creates the connection string in design time also, but the connection varies depending on where the software is installed after the development.My question, is there anyway to set up the bound controls on my forms and everything with the typed dataset created in design time on the connection created in design time... then when the application is run, can it change the connection string at run time to get it connecting to and creating the dataset from the the correct sql database?
View 1 RepliesI have a problem. I have created a control, Now whenever I am going to Drug that control on my form then a error popup will appear that says "Failed to create component 'XXXXXXXXX'." System.IO.FileLoadException: A strongly named assembly required. HRESULT: 0x80131044 Is there any facility available in .NET for design time debugging Means If I drug a control on form then I will allow me to debug the control.
View 1 RepliesIn some of the forms ,whenever i change some properties using the Properties Window of some controls or the form they get reflected in the Properties Window but will not get changed at Run Time.
I am facing this in quite many of the forms, hence i am applying the property changes in form load, this is causing performance breach .
I have the following errors displayed at bottom of my Visual Studio.However, I do not actually have ANY error when I run the app.
Dim storyboard As Storyboard = Me.FindResource("Show Entry")
storyboard.Begin()
''''''''ERROR'''''''
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I'm making a quite large database management program(well actually 3 databases) and I am going to be creating a tab page for each database and under that a tab page for each table. each database has +- 200 tables and each of those has between 10 and 50 columns. I am also gonna put controls on each tab page of a table that represent a a row of data.I need very specific tooltips, functions for each table so generating it would be to complicated for me.
I need a automated way of creating controls on design time depending on the column datatype like a rich edit, text box or numeric up or down. and a label that has the same text as the column name It should also rename the name of the control to something appropriate .This can be done using visual studio's database wizard, but last time when I was about 30% done with one database it had already auto generated more than 1000000 lines of code. When I ran my program it took 10 minutes to show the first form and I have a powerful pc.
I vaguely remember something about a hotkey or menu that would group controls together at design time so you could drag 2 or more controls around and they would remain relative to eachother. You could work on something else and come back and the controls would still be grouped.
Does anybody know what this feature is called and how I can access it?
Basically, in the designer I want to be able to connect a collection of objects to another property. When the collection is set, the property should display a drop-down allowing you to select one of the values from the collection. It is a collection of a custom class.Right now I have the collection implementing the IList interface from the System.ComponentModel.Generic namespace. I've looked into type converters, but I haven't been able to figure out yet how to get them to work for my needs.
View 3 RepliesI've developed a derived form class that contains various collections of data. Corresponding to this data, I have a series of custom controls which can be linked to said data. I do this via custom UITypeEditors that convert the Custom Controls' Form into my derived Form Class Type and filling in a ListBox with the relevant data for the control in question. When the controls are serialized by the designer, it only stores the index value.
The above all works fine. However, I have found 1 bug that I am trying to work out - which is that, during Design Time, Custom Controls that are placed in sub containers (like a Tab Control) will fire their Load Event BEFORE they are placed inside of the Form. Is there a way to prevent this from happening? OR is there an event which occurs when the Controls are truly placed inside of a form (and not merely a sub container)?
EDIT: Upon Further Inspection, this problem only occurs with the Tab Control and not with other sub containers like Group Boxes, Split Panes, etc.
When trying to edit an exisiting or trying to create a new dialog with a MSFlexGrid I get the following error
The ActiveX control "Microsoft FlexGrid Control, version 6.0" could not be instantiated because it requires a design-time license.
Any one know how to get a "design-time license" for the MSFlexGrid control.
I want to create a simple program and I'm trying to do this with run-time design.with this form, when you click on the button1 with the caption(Text) "Show Another Form", another form will be created with this code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click[code]....
How can I exit the form I've created when you click on the Cancel Button. The code I've provided doesn't work.
I created a custom control (inherited from a panel). Then I created some other custom control (textboxes)
I add the panel control to the form, then I add some custom textboxes inside the panel.
Now, if I remove the panel, the custom textboxes don't move. I think, because the custom panel control isn't the parent control of the custom textboxes.
How can I modify my custom textbox class, if I add the textbox to a form, to a panel, to a container, it should have that container as parent.
I know how to set flowdirection at runtime, but how can I set it while designing a form?
View 2 RepliesI have several panels in my app is there a simple way to switch between the panels without dragging them off the screen so I can see the ones bellow if I need to edit the first panel I have to move 8 panels to see it?
View 2 RepliesI'm developing with VB.NET 2008.One of my host was crashed, so I take the files and keep development on another host. But now something strange is happening:All frames, lines and shapes are disappeared on design-time, but are seen normally in runtime.
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setting the default value for an integer attribute of a custom control seems to have stopped working. The following code adds the Maximum attribute to the design-time properties table, but the default value pops up as 0, not 99:
<System.ComponentModel.Browsable(True)> _
<System.ComponentModel.Category("Behavior")> _
<System.ComponentModel.Description("highest value possible")> _
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I'm creating a custom button . when user select a image file for button image i want to add it to the project resource (in design time) .
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