I have a form with the FormBorderStyle set to SizeableToolWindow. The close button - 'x' in the upper right corner - sends a DialogResult of 'cancel' to the FormClosing event when clicked. How do I set it so that it will send an 'OK'? I tried setting the form's DialogResult to 'OK' in the New method, but that's not working. I checked my code and I'm not setting it anywhere that I can see.
View 11 RepliesCan I change the 'OK' text on button to 'Close' in VB.Net?
View 16 RepliesIn a base class object, I have an overridable subroutine that I would like all derived objects to have the ability to include. However, they don't have to, and if it's not necessary for them to use it, I don't want them to be forced to declare it. To enforce this, I've left the default behavior empty. For example, here's my whole sub:
Protected Overridable Sub MySubroutine(ByVal someObject As Object)
End Sub
Is this bad practice? I don't want to declare it as MustOverride, but I don't want default behavior. Is there a "better" way of doing this, or is this perfectly acceptable? I don't want to be that hack programmer...
is it possible to change the default text of the button of msgboxes? How?
View 4 RepliesI change the background color of a button to red, and need to change it back in the code to the default gray
View 2 RepliesI use the following line of code within a single method to explicitly check and trust an SSL cert from the following host: MyTrustedCompany.com:
ServicePointManager.ServerCertificateValidationCallback = Function(obj As [Object], certificate As X509Certificate, chain As X509Chain, errors As SslPolicyErrors) (certificate.Subject.Contains("CN=MyTrustedCompany.com"))
No problem with the code -> works perfectly 100%.
The problem is, it is too far reaching. I thought its scope would only be within the method I decalred it, but apparently it is a Shared property on the 'ServicePointManager' object, and must then persist for the entire application, which I do not want.
The problem is later I am calling web services of mine, etc and getting the "Could not establish a trust relationship..." exception. This is because in the line of code above I check for the host name of an SSL cert specefic to that method. I quickly tested Returning 'True' from the callback so all certs would be trusted instead of checking for a specefic name (i.e. MyTrustedCompany) and subsiquent requests worked. This is how I know this callback assignment reaches father than that single method. Sure I could extend the callback to include all other certitificate names, but what I would rather do is set the 'ServerCertificateValidationCallback' back to its default behavior. Like the pseudo code below:
ServicePointManager.ServerCertificateValidationCallback = Nothing 'Default checking behavior
How do I remove the custom validation and set it back to its default behavior?
In vb.net datagridview the default Enter/Return key behavior is to move to the next row is there a quick and easy way to avoid that.
View 3 RepliesI want to disable the majority of the built-in functionality of the WPF Richtextbox that is found in "EditingCommands"
How can I go about disabling them?
I've searched the forms and ran into a road block i think due to not really knowing what its called I'm searching for. Here is a simple explanation. I would like to add a button on my form that if selected will change the default application that a certain file type opens with.
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I'm currently in the process of building a text editor type program, and have run into a brick wall. I haven't done VB in years, so I may just need a little reminder on some things. I have coded everything so far as far as opening files, saving them, changing fonts, colors, etc. However, I'm looking to add a Close button to my menu strip that will just close the currently opened file, and not the entire program, while also ask the user if he/she would like to save before closing the file, and then if they select yes, it will show the save dialog, and if not, it will go ahead and close the currently opened item.
View 2 RepliesI have a table layout panel it has 3 rows and a column in first row I have a toolstrip having two buttons and in third I have a grid first row is absolute, second is absolute and third is autosize Now on resize event or toolstrip If I change the size of first row dynamically third row shows odd behavior.For a value of first row ,third row (grid) sometimes overlaps the first rows control and sometimes too far from it .
View 2 RepliesMy VB2010 programme changes the background colour of a button (butExtra.BackColor = Color.Red). But how do I restore the colour to the default "Control" colour?
View 2 RepliesI am trying to create a button behavior such that when you click the button it fires the click event as normal & runs the code under it. But if you click & hold the button for 1 second then it jumps to a different sub & runs some other code. I got my button working that way for the most part, using a timer & the mouse down & mouse up events. The only issue I have is that after the timer fires after 1 second & I execute my alternate code, the normal button click event still fires when I release the mouse button & runs that code. How can I cancel the normal click event so that only the alternate code runs when I click,
View 16 RepliesI'm using a SortedDictonary(Of String, String) in my application, and I experience a strange sorting behavior. Consider the following code example:[code]I would expect the keys to be sorted as "'A", "'B", "'C", "A", "B", "C", which is what you get when comparing the keys "by hand", through the < operator. And yet, iterating through the keys returns "A", "'A", "B", "'B", "C", "'C".How can I change the SortedDictionary behavior to sort the words beginning with ' first?
View 3 RepliesI have set up a notify icon for my form. I want to make it so that when the user clicks the close button that it doesn't close the form it just takes it to shows the notify icon. They can exit the program from the notify icon. Can someone tell me how to keep it running?
View 2 RepliesIt seems like whenever i click my close button the application will close but the debugger is still in active.How to exit this debugger? :)
View 2 RepliesI need a bit of your help. I am creating a button on my application and I have add the image. I want to know how to make the image to show as the pushbutton when I click it?
View 2 RepliesI have a checked list box having some items .When I click any item it first select the item and then when I again click it then check box is checked/unchecked How to change this behavior means I want to perform selection and check/uncheck action in a single click.
View 4 RepliesI am trying to load contents of an Excel file in a datagrid. The data in the Excel file is arranged in rows and columns. Every column has a column header. Now here is the anomaly. For some reason when I put a less than sign (<) before some of the values in the last column, the values become blank before they are loaded into the data grid. This behavior is not observed when the less than sign is put into the other columns. More strangely the values are retained in the datagrid even if the the < is put before the values of the first few rows of the last columns within the Excel file. I used the following code in loading data into the Excel file:
Dim con As OleDbConnection
Dim da As OleDbDataAdapter
Dim ds As New DataSet
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is it possible to apply the effects/behavior of the new cellphones like iPhones, nokia, sony ericson in a software. I mean how they fade, selecting icons etc.If its possible how to make a smooth effect in software. Cause im planning to make a software but the effect/behavior is like in cellphones?
View 2 RepliesHow do I go about overriding the default functionality when a user clicks the X in a VB.NET form-based application? I am currently handling the MyBase.Closing event... but since it's a DirectX app, I need to do some cleanup before allowing the form the close.
View 3 Replieshow do i insert text for the designated object when the help button (next to the 'close' button) is pressed?
View 1 RepliesI have a form containing a date textbox and a submit button and a close window button. The date textbox onblur calls a javascript function which checks for date validation and some other logic and displays some alert messages. The date on the textbox is always selected and onfocus. My problem is when I try to click the close window button with/without changing the date the alert messages from the onblur logic are displaying and I am unable to close the window. I tried using onchange instead of onblur but onchange too works when a control looses focus. it works fine when I donot change the date but when I change the date and hit the close window button it too displays the alert messages and the window does not close. Please suggest me what will be my best option.
View 2 RepliesWhat control should i use if i want a button with default text on it and when i press on it, it give a drop down menu that i can select different commands. I tried a combobox which seems to be very close to what i want. i set the dropdownstyle to dropdownlist so it looks like a button. but i cant seem to set a default text on the box and i dont want this text to be in the item list. also when i set the dropdownwidth to a value larger than the combobox width, it will align left.
View 4 RepliesHow to change the Data Gridview Button Back Color and Fore Color Based on Condition in Vb.net2005. i'm Attaching the gif toooo
View 5 RepliesHow to catch the event of the window close button(red X button on window right top corner) in wpf form ? We have got the closing event, window unloaded event also, but we want to show a pop up if he clicks the close button of the wpf form.
View 1 RepliesThe MaskedEditExtender control that I am using is set up for a MaskType="DateTime" and the AcceptAMPM="true" but I need to know how a user can change the am/pm without having to type in A for AM and P for PM? Is there a way I can add arrows or something to this control so that it is more user-friendly when changing from AM to PM? My users aren't going to know that they need to type out the value for it to change.
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I have a vb.net app that uses PrintPreviewDialog to print a document. Now I want the user to be able to print to any printer on the network. So, I created a listbox of available printers which works fine. Now, I need to either change the windows default printer to the one selected, or make the PrintPreviewDialog use that printer name.
View 6 RepliesI am using VB 2010. The default font for forms is Sans with a size of 7.8. Is there a way I can change the default font to something else. I do not see this choice in the options section of the tools menu.
View 3 RepliesIs there any way to change the default value(s) of controls? How about setting the default value of Textbox.Multiline to True which would make it easier to arrange on the form.
View 2 Replies