I'm writing a program in which I want to list the values of some of the properties on every control on every form in the application. I can do this for simple controls like Buttons and Labels, but am having a problem when it comes to a complex control like a ListBox. I know how to extract the data when I laboriously code each ListBox individually. The problem is how to do it when it's a generic object buried inside two loops
View 7 RepliesAll my controls for getting data from user are in TableLayoutPanels and GroupBoxes inside TableLayoutPanel, I want to set default selected index of entire CoboBoxes to 0 in all TableLayoutPanelsand and GroupBoxes inside TableLayoutPanel. [code]...
View 23 RepliesWhy I am getting this error frmProduct' is a type in 'Test' and cannot be used as an expression.
Below is the code.
[Code]...
Am faced with the above problem which I have failed to understand. the details of the error are given below.
Code:Control 'ValidationSummary1' of type 'ValidationSummary' must be placed inside a form tag with runat=server. Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Control 'ValidationSummary1' of type 'ValidationSummary' must be placed inside a form tag with runat=server.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[HttpException (0x80004005): Control 'ValidationSummary1' of type 'ValidationSummary' must be placed inside a form tag with runat=server.] System.Web.UI.Page.VerifyRenderingInServerForm(Control control)
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I have two separate web services, the first configured to extract data from a live database, the second from a test database.
When consuming these web services from an application the object returned is a MyMessageData class which is defined in the web service.
In the application I would like to instantiate a empty the MyMessageData (from the live web service) and then use a configuration setting to decide which web service to retrieve the actually data from.
This does not work for test because the application does not see the instantiated MyMessageData class from live as the same type as the MyMessageData that is returned from the test webservice. [code]....
I need to test a string of text that needs to contain a certain type of char values. The known is allowing of a-z,A-Z,0-9. But the variable (which will be coming from a database field) will be the allowed symbols. The allowed symbols will look something like:!@#$%^&*()
So using regex, how can I check a string of text to make sure it ONLY contains a-z,A-Z,0-9 AND the allowed symbols as shown above? Remember, the allowed symbols is dynamic at run time so I need to somehow be able to plug that in to the method at run time.
The following examples would be valid using the above symbol string:
Test1234%
Test1234
The following example would NOT be valid:Test1234%_
I need to query XSD to fetch the name and type from the schemea containing <XS: Element name "Test" type = "test12">. I need to use LINQ.
View 1 RepliesI have a problem with My dataGridVew. i am trying to export data from my DB to excel fie. it's a small page where there are only data grid view and button to export like this :
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
[CODE]...
When i click on the button error message is coming : "Control 'GridView1' of type 'GridView' must be placed inside a form tag with runat=server.???" even i have placed it in form ?
I need to be able to tell if a property is of type List(of T)but am currently unable to. if i do
TypeOf (UpdateTo.GetType.GetProperty(node.Name)) Is System.Collections.Generic.List(Of Object)
I get the following error
TypeOf (UpdateTo.GetType.GetProperty(node.Name)) Is
System.Collections.Generic.List(Of Object) Expression of type
'System.Reflection.PropertyInfo' can never be of type[code]......
I have a form that displays data. What I would like to have is a button that when pressed will display some test extran textboxes in a dimmed/transparent type of fashion. I can get that using another form, but would like to do it without the second form.
View 1 RepliesI'm using Access 2010 and would like to know if there is a way to test whether a command button's visible property is True or False? If there is, am I right to suppose it would be the same for any control?
View 5 RepliesI'm trying to test/debug a WPF UserControl library in Visual Studio 2010 with the User Control Test Container.exe. I keep getting the error "Assembly [...] doesn't contain any UserControls." This should be simple, and every msdn article and blog tutorial I've looked at suggests that it should all just work perfectly and magically.[code]Project File has debug options set to open UserControlTestContainer.exe, with ./MyTestLibrary.dll as a command-line arg.
View 2 RepliesI don't understand the error, Argument not specified for parameter 'test' of 'Public Shared Function TestThis(test As String)'.
Partial Public Class Form1
Shared Sub ReceiveCallback(ByVal ar As IAsyncResult)
Form1.Invoke(TestThis, New Object(){"test"}) 'error
[code].....
I have the following query
Dim get_rmf_2 = From rmf In t_rmf _
Where rmf!NIVP = nivp_rap
When i run it i get an error :
Operator '=' is not defined for type 'DBNull' and string "test".
I suspect this is because the column "NIVP" in the datatable contains null values, I've tried yhe same thing without null values and it works.So how can i make this work ? ; the column "NIVP" really has a row "test" , and a normal SQL query works fine.
I have a form (frmResults) that contains a button (btnConsole) which when clicked it tests if the class level variable (cv_frmConsole) is Nothing.If so, it opens a new instance of a form (frmResultsConsole).When the user closes frmResultsConsole,then clicks btnConsole my code throws an exception, because the code below "Else" is run.I want to properly test if an instance of frmResultsConsole already exists.If so, show the form even if the user minimized it or it's hidden.If not, open a new instance.
Public Class frmResults
Private cv_frmConsole As frmResultsConsole = Nothing
Public Sub New[code].....
i am trying to test if a form is open or not, i thought the following was working: if frmname.isdiposed = false then call frmname.somefunction but it doesnt work like i thought it did basically what im trying to do is determine if a form is open or closed, if its open call a function on the form. if it is closed don't do anything
View 6 RepliesI am trying to make it so when I use Me.Controls("Timer1") for example I can access specific commands for a timer such as Stop() Start(), I tried CType() and typed in "Timer" as the type but it says the control type can't be converted to the "Timer" type.
View 11 RepliesI am tightening up my coding with the Option Strict set to ON. It has now produced alot of errors. An example of this is:
If AllocatedDGV.Rows(i).Cells("RoomNumber").Value = RoomsAvailableDGV.Rows(j).Cells("RoomName").Value Then
It gives me the following error: Option Strict On disallows operands of type Object for operator '='. Use the 'Is' operator to test for object identity.
I think for you my problem is very simple..I have done the same program in console mode without problem, now i try into windows form...
I generate by random 2 number A&B I multiply them and I will compare it with the result in my textbox3
if it the same as the computer has calculated il will show you congratulation, however i will say try again
I have a problem to calculate the sum, A&B are well generated but nothing in Calc Result
When Calc was working when I write nothing in the textbox3 and i click on Verify it show the msgbox congratulation.I'm looking just for this step, I've fixed the other issues And another things When It's right I would like to random another number for A&B after closing the msgbox, how can I processd ?
[Code]...
I need to write an interface to get data to/from our data files.
We have a low level class that holds field values for each record read from the files.
This just holds two values, the value read from the file (DBValue) and the updated value that may need to be written back to the file (CurrentValue).
These values may be any of the standard value types (integer, date etc) or a string.
Either value (DBValue or CurrentValue) may be null if not defined.
I have written the class to manage this data which works fine while option strict is NOT on.
But we have an office policy of having option strict on all the time.
When I put option strict on, my object value comparisons fail with the error: "Option Strict On disallows operands of type Object for operator '='. Use the 'Is' operator to test for object identity."
Question, how should I change the following code to handle option strict on ...
This is all running on Visual Studio 2010
[Code]...
I remember in VS 2005 that when I was working on making user controls, if I removed the default Form1 and ran debug, that some sort of test container popped up. The window had a drop down menu to the right with some other properties so that I could choose from it the control I wanted to test. Choosing it would show the control to the left (in the main area) so I could test it, all without placing the control(s) on a form.
However, I cant find how to use this in VS 2010. I tried deleting Form1 and leaving nothing but by custom controls, but it just causes errors.What is the name of this window, and how can I get to it in VS 2010?
If I create a list for a TextBox:
[Code]....
I am able to only add controls that are of type TextBox. My question to you is, can I create a List to hold more than one control type or do I have to create a list for each control type?
[code]...
and from VB6 project I reference to Test.dll but an error messege was appear A reference to Test.dll file could not be added (If I create VB NET project and reference to file Test.dll it OK )
Probably a dumb question, but can you write a unit test project in one language to test against another project in a different language?I'd like to translate one of our VB assemblies into C#, but want to build unit tests to verify the results. I've tried to set a unit test project up to do this, but I can't seem to access the VB code within a unit test... I can't figure out if I'm just missing/doing something stupid, or it really isn't allowed.
View 2 RepliesI have a test that can run for many days depending on some oven controls, etc. I would like to have a "HALT" button on my form that will stop the test if the user decides to.For example, lets say my "btnRunSomething" click event fired and I'm looping in there for a long time. When the "btnHalt" click event is raised, how can I stop the "btnRunSomething" sub's execution? After stopping execution, I will close the connection string to the oven as well and dispose of everything properly.
View 2 RepliesI have the follwoing code:
controller:
Code:'controllerPublic Class Controller1
Friend WithEvents btn As Button
[CODE]...
In the above code when i click the button on the form, it doesnt display the message in test(). I have to click two times to display this message. Why this happense and what can i do to fix this? both the classes are inteh same project scopecheers.
Im Using VB 2008. I have MsgBox() statements in all Mouse & Form Click events to TEST & NOTHING FIRES during Form Load when I click on Form or Button Controls !!! The Form Load event contains code for Displaying the Label.Text control many times with changes in the Text to simmulate annimation.
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Dim Type As String = frmFrontEnd.cmbModel.SelectedText.Substring(0, 4)
cmbType.SelectedText = Type
i would like to take a selected aircraft type from a previous form and put it into the form i am working on at the moment, but i want to edit the string so it only has 4 characters.I thought the above line would do it but apparently not. the error is to do with the length.An example:the model in 'the other' combobox is A330-200/-300 and i would like to put A330 into the new combobox cmbType in the above code.
I have created simple windows form control with some events.
This form has button which opens Form with some settings.
Now, I need to raise the events inside the control when I click some buttons within the settings form ..
I want to add a control in winforms that drops like combo box but can show data like datagridview. I have seen this control in an application but not able to find a way how to do it. (Pic attached)
View 2 Replies