Validate That The Chosen Option Is Appropriate For The Rest Of The Row?
Aug 21, 2009
I've searched for a solution with no luck, can you help? I've a DataViewGrid with a DataGridViewComboBoxColumn, bound to a dataTable which all works fine but I need to undo the user selection in some cases.
When the user selects one of options I validate that the chosen option is appropriate for the rest of the row. I can do this in the CellValueChanged Event and easily determine if its good or bad - is this the correct event to do the check?
The problem I have is that I want to roll back to the default value in the DataGridViewComboBoxColumn if an invalid selection is made:
[Code]...
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Jun 26, 2009
I have a treeview that I use regulary. During testing I usually got to one of three locations in the treeview. However I have to drill down quite far in the TreeView to get to these locatons. The Treeview Parent node is "C:"
I would like to build some funtionality in so that I can present the user with a list of commonly chosen paths and then have the treeview reload and generate the full path from the list. Maybe this would be generated off a right click menu. Not really sure exactly the best way to do this.
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Apr 26, 2012
I'm trying to figure out a way to validate the user data entered:
[Code]...
This is in MVC3, VB.net. I'm looking for an easy way to validate a users input data into the editorfor field.
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Feb 22, 2011
I really like the coding speed that vb.net provides, but I don't like the possibility to forget to declare variable types, return types of functions, etc. and that is why in each class I use[code]..
Is there a way to define those two options on the project/solution level?
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Jan 26, 2010
the combo box style 1 has both the drop down option but also a manual entry option. I need to know how to code it so that when you manually enter data, it takes that data and places it in a text message "The shipping charges for "data" is $15" displaying in a text box. Shouldn't be hard but have developed a mind block.
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Sep 8, 2010
How can I determine which box a user has chosen from the points array I stored it in? EX:
Points.add(box1)
Points.add(box2)
Points.add(box3)
User selects box2
How can I determine from the points array(x) which box he chose?
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Feb 24, 2010
what does these two code means in vb.net: Option Explicit on Option strict on i think option explicit means the compiler is not going to do any kind of conversion and i need to do all of them by the code;also it becomes case sensitive i.e;
[Code]...
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Nov 18, 2011
Im not good in querying. I would like to ask if this query works.I want to retrieve starttime, endtime and sessioncost from the table SESSION of my database. my program will be an autorun.
Dim sql As String = "select STARTTIME, ENDTIME, SESSIONCOST from SESSIONS where CLIENTID = (?)"
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Jun 5, 2011
I have four comboxes all containing A,B,C,D. My problem is if I have chosen letter A on the first combobox, the last three won't have letter A anymore, then on the second combobox, if letter B is chosen, the last two will have C and D and so on.
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Jul 28, 2010
I would like to create a program which able to lock several files from unauthorized person to use and unlock it when the authorized person wants to use
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Jan 27, 2009
I'm trying to make an autoshutdown, that can, of course, shutdown your computer but also open a program when you want (I'm working with vb 2008 btw), I was thinking in using openfiledialog, get the path to a text box and then open the file with shell.
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Jun 14, 2012
So I'm making a multi-function clock for practice.
It's a clock, timer and alarm. It's all done except for the alarm. I want to be able to choose a song (mp3) with OpenFileDialog1 and then play it when I click a button. I'm thinking about using a hidden Windows Media Player control,
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Nov 28, 2009
lock/delete this thread if you wish.
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May 31, 2010
Im having problems in saving the date selected. When I clicked my save button, it is saving the current date not the date i choose. The date I selected is for the Birthday.Here is my code for saving:
Dim myBuilder As OleDb.OleDbCommandBuilder = New OleDb.OleDbCommandBuilder(dataAdapter)
If dt.Rows.Count <> 0 Then
[code].....
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Apr 3, 2011
Can a media player written in VB be modified to do this: randomly choose an avi file from a directory or subdirectory, choose a random starting point within that file and then play a clip of a random length (within user defined parameters) then without prompting repeat this sequence?
I would like just such a media player but there doesn't appear to be one already out there so my only other option is to write one myself. I know nothing about VB and last programmed in BASIC in the 90s. Before I invest time and effort in learning VB I need to know if it can actualy do this at all.
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Aug 30, 2010
i need code for chose any txt file and opening it from open file dialog (if thr user click in open button)and display the content of chosen txt file in textbox
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Nov 8, 2010
How To Find Screen Pixel Of Choosen Color?
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Mar 7, 2012
i ve got two radiobuttons one labelled male and the other labelled female and a client is supposed to choose which gender they are and insert it into the other database along with other information. I want to know how I can insert the chosen value (male or female) into the database
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Jul 22, 2010
I need to make a report but my columns will be chosen in run-time. I used to make report with crystal report by filling my data to query table and connect this query table with designed report by crystal report. but this time the user will choose the fields in run-time.
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Apr 12, 2009
i got the "downloder with progress bar" from some one on this site. but i want it go begin downloading when i have chosen my desired path. but i just dont know why
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Nov 28, 2009
VS 2008 Starting a program with a chosen path
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May 11, 2011
I have created the random bingo calls needed with the standard bingo letter restrictions.. i.e. B = 1 - 15, I = 16 - 30, etc. I have a form with 5 columns with B I N G O at the top and the corresponding numbers beneath. Those are labels named lblB1, lblB2, etc.
My problem is that I can't seem to figure out how to get get the text to change on the called tiles. Logically it would be easiest to use something like
varLabel="lbl" + varCalled
varCalled.Forecolor = red
Where varCalled is the ball number being called.But.. that is not the case. (I'm at work so can't submit the actual code at this time.. will do so later if needed)I've done some searching and can't find anything that helps out.. but searching for "change label color dynamically" comes up with how to change the color of a label at runtime.. not sure how else to search on it.
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Oct 5, 2009
I am using combobox to populate values from a table, 'Suppliers'. I put this combobox in a form wherein the order details are filled up. This column 'Supplier' is a Foreign Key and set to NotNull in the order detail table. Selecting the first available entry on the combobox gives error 'SupplierID cant be Null' . Selecting the 2nd value is OK, first choosing 2nd and coming back to 1 is also OK. This error comes up when trying to update the database.Even with the first value, the combobox is having a text. I would like to know why the error.
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Jan 26, 2010
I use VB 2008, and have "moderate" programming skills.I've constructed an xml file:[code]
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May 16, 2012
I am working on a GUI for a simulation program. The simulation program is a single .exe which is driven by an input file (File.inp placed in the same directory). The Original.inp file functions as a template from which the form reads all the values into an array. Then it changes these values reflecting the changes done by the user in the form. After that it writes all the new values to File.inp. By pushing the "Run" button the Simulation.exe file is executed. The folder structure looks like this:
[Code]..
Ideally I would supply only the GUI, the user would select the working directory and then the GUI.exe would create an input folder and extract the Original.inp and Simulation.exe in the appropriate locations. So far I have only managed to include Original.inp and Simulation.exe as "EmbeddedResources" in my VB project and I have let my code create an input folder in the working directory chosen by the user.
how I can extract the .inp and .exe file into the correct directories? I've searched on google, tried File.WriteAllBytes and Filestream.WriteByte but did not get the desired results. The problem with File.WriteAllBytes was that I could not point to the embedded resource ("Simulation.exe is not a member of Resources" and with Filestream.WriteByte I got a 0 kb file.
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Jul 28, 2009
I want my console application to be able to do one function I have when you click one option on the windows context menu, and another function when you click another option.
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Oct 17, 2009
How can I get round this error: Option Strict On disallows implicit conversions from
[Code]...
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Feb 22, 2011
1. I have read that keeping Option strict on and Option infer off is good practice and will insure your code is tight and properly written. I would like input regarding this, pro's and con's from those who are in the know.
2. Having said that, I have set Option strict on and Option infer off in an existing program I wrote (that was working perfectly mind you) with them off and on respectively. I went through and cleaned up all the errors on the 'need AS' and casting of variables, but one is leaving me a bit put out.[code]
I have also read where using My.Computer.System.Directory.GetFiles() instead of System.IO.Directory.GetFiles() is probably not a good thing, but when I change to this I get no error, but also no dataI am thinking I should stay with the strict on and infer off but am really slogging through getting this code correct.Running Win7 on Dual Quad Core XEON Intel Extreme with 8Gb RAM.
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May 20, 2012
I have an application which uses hotkeys which are to be defined by the user. It is a combination of 2 keys, either CTRL, ALT, SHIFT as one hotkey and the F* Function keys as the other (e.g. CTRL + F1, ALT + F2 or SHIFT + F8) As stated these are then chosen by the user before a global keyhook is put in place to listen for them and trigger an event. In my app I have all my function keys as follows:
Public Const VK_F1 = &H70
Public Const VK_F2 = &H71
Public Const VK_F3 = &H72
[code].....
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Aug 13, 2011
How do I post this HTTP REST request using HttpWebRequest and System.Xml.XmlDocument in vb.net
<tns:request command="hello" xmlns:tns="http://www.xxyyzz.com/xx/yy/zz" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" />
The server responds with
<?xml version="1.0" encoding="UTF-8" standalone="yes"?><response xmlns="http://www.xxyyzz.com/xx/yy/zz"><operation location="/mm/10d9c79e-5876-4fd0-9093-ff7bdee5ebd4/uploadInfo" command="uploadInfo"/></response>
how do i capture this response?
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