EntLib Validation Syntax For Optional Field Rules?
Feb 25, 2010
I have an field, Address2, which is optional. Thus if it is null, no validation rules apply. However, if a value exists, its length cannot be greater that 255 characters.
I have been toying with:
<StringLengthValidator(0, RangeBoundaryType.Inclusive, 255, RangeBoundaryType.Inclusive, MessageTemplate:="Address 2 can be between 0 and 255 characters in length.", Ruleset:="MyRules")> _
But if it's not present, I still get an error.
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Dec 20, 2011
Any way to apply some validation rules to the following code?
VB
Private Sub dgOperator_EditingControlShowing(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewEditingControlShowingEventArgs) Handles dgOperator.EditingControlShowing
Const cSUBNAME As String = "dg_EditingControlShowing"
[Code] .....
Another thing should I be applying this validation on the Id Op'rateur column or when I click to the edit the next column in the datagrid i.e. Description?
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Jul 16, 2009
i'm doing a project for school which requires me to make a fully functioning database program with validation. I'm done with almost everything except a few things and that includes the database, since i don't really know how to make validation rules and masked fields.It's possible i'm guessing to in forms and such but in datagrid view?
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Mar 11, 2009
I'm just curious why class/property attributes in VB.NET have a weird optional syntax such as:
<TestAttr("a", "abc", Optional1:="foo", Optional2:=3)>
VB.NET allows you to set optional parameters like this to avoid order restrictions (which is lovely) but in this case it's forcing you to that.For example this is not possible:
<TestAttr("a", "abc", "foo", 3)>
even though the parameters are in the same order as the original definition.
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May 4, 2012
This seems like I only need a line or two of code? This is what I need to do:
Add data validation to the new phone field on the Contact Us form. We would only accept phones with the following format: 995-999-9999 Complete the contact us form so that you can submit it as an email. Send all your test emails to blah@boo.net. You can use any email account you have to send the email.
[Code]...
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Nov 5, 2010
Add data validation to the new phone field on the Contact Us form. Wewould only accept phones with the following format: 995-999-9999Complete the contact us form so that you can submit it as an email. Send all your test emails to blah@boo.net. You can use any email account you have to send the email.
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Feb 28, 2012
I have a question related to asp.net and vb.net. I have a repeater control that I bind some data to and allow users to update/change fields within certain text boxes. I added a validation control to trigger when the user doesn't enter a valid date or the text "TBD". On submit, I want to go through and highlight each field where its corresponding validator is not valid. This is my current code, but I am lost as to how to find the text box control.
Sub ValidateDateField(ByVal sender As Object, _
ByVal args As ServerValidateEventArgs)
'validate against three conditions - date, "TBD", and "N/A"
[Code].....
how to get cont = textbox1row1 of my repeater control.All examples I have seen so far directly state the control as in text1.BackColor =
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Dec 18, 2010
I need to set validation on a textbox where the user types in their email address... This is not a required field though so I want to allow the form to be submitted if the textbox contains the default text ("Email address").I've posted the code i have already to ensure a valid email address is typed.
<asp:RegularExpressionValidator CssClass="errorpopup" Display="Dynamic" ID="regexpEmail"
ValidationGroup="mySubmit" runat="server" ErrorMessage="<strong>Please enter a valid email address.</strong>"
ControlToValidate="tbEmail" ValidationExpression="w+([-+.']w+)*@w+([-.]w+)*.w+([-.]w+)*"
SetFocusOnError="true" />
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Sep 8, 2009
Is it possible to put Number validation in required field validator in asp.net text box?
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Nov 12, 2009
I have a problem with the Validation of a Integer-Field in my application.Its an Access DB on a Windows Form.I implemented the validation in DataSet.vb using an ErrorProvider on my Form.The field name is FNr and should not accept duplicate numbers.If the field value is changed, a query checks if the number already exists in the Datatable and if so it sets the error on that field.If the user tries to change the field to a number which is a duplicate I want to cancel the input back to the original number. This works but the
Error message is still shown by the ErrorProvider.The code is partially in DataSet.vb and in Form.vb
Public Class Funktionen
Private Sub FunktionenBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FunktionenBindingNavigatorSaveItem.Click
Me.Validate()[code]......
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Dec 21, 2011
I have a form on an asp.net (VB) page which has 2 sections.
All of section 1 is always required, but section 2 is optional. However, if section 2 is started, then all fields are required.
I'm stuck as to the logic I need to create this validation.
Here's my code:
<form runat="server">
<div>
<asp:TextBox runat="server" ID="field1a" Text="Name" />
[Code].....
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May 27, 2010
I have an sql table called products, which has a data field called product defined as a text field, how do I assign a VB variable to this data field?[code]...
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Oct 20, 2010
On the form, the user have to pick 4 different fields from combobox and then it will show into DataGridView.[code]
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Jul 6, 2011
I have been asked, at very short notice of course, to implement exception logging to the Windows Application event Log in one of our products (vb.Net, framework 3.5, WinForms) using EntLib 5. In and of itself this is fine - I can get that working. However, this is for a client who wants messages in Chinese. Certain parts of the app have language resource files and I found a couple of sentences in my MS EntLib Developers Guide book which suggested that I could use an external resource to provide a localised 'friendly' message in a wrap handler within the Exception Handling Block.Unfortunately there was no mention of how to actually achieve this but it seemed straightforward enough. I added a new resource to a resx file which lives at the project level for the project which is common to all areas of the application and re-built to project so that the satellite assemblies were built. I then specified the name of the resource in the 'Message Resource Name' field within the EntLib configuration console. the problem arises when I try and specify the 'Message Resource Type'.
I clicked on the search button and found the satellite assembly I needed, but it did not get added to the list of loaded assemblies and therefore I couldn't select it. The problem is that none of the places where I've seen this feature mentioned actually demonstrate how to get it working so I'm not sure where I'm going wrong. The search for the assembly will only let me select a dll or exe so I assume I am supposed to reference the satellite assembly somehow but how do I do this if it won't add it to the list of loaded assemblies?One point to note is that we have a main executable which then calls numerous class libraries to load areas of functionality as required, and the config file we use throughout is the one which belongs to the main executable. Is it the case that you can only use satellite assemblies which are related to the assembly that the config file belongs to?
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Jan 26, 2010
When I have a property within a class such as:
''' <summary>
''' Customer IP address.
''' </summary>
[code].....
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Mar 6, 2010
I am trying to have an optional Date value in one of my sub but since you cant set Date to nothing, this doesn't work. And i cant set it to the Date.minvalue inline.
Private Sub abc (ByVal A As String, Optional ByVal B As Date = Nothing)
End Sub
So, i went and set it to some date in the past.
Private Sub abc (ByVal A As String, Optional ByVal B As Date = #1/1/2001#)
End Sub
what would be the proper way to handle the default value for an optional Date?
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May 27, 2010
If we won't know what Exception will be thrown then why cannot we catch a general exception? I just cannot follow this and some more.
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Jan 15, 2012
So for the important part, right now I'm planning on creating a word detector somehow and there are specific rules I was to set in the textbox in relation with the button.Let's say I wanna set an IF Statement for the text to have 32 characters and letters "abcdefg" and numbers "12345" so that it'll execute a message box when I press the button.
Here's a code example of what I'm saying
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[code].....
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Mar 20, 2012
I was having a discussion with a colleague about a method used to check business rules. In general there are two conditions:
"If one fails the whole thing fails"
Example 1: "If one fails the whole thing fails"I have used the following technique for condition 1 in several cases. Essentially if one of those conditions is false then the whole thing fails
Dim blnTemp As Boolean = True
If Fail=False Then blnTemp = blnTemp AndAlso False
{code code code}
[code]....
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Feb 16, 2012
I have created a system in Visual Basic 2010, which is to check on the existence of files attached in a access database. However there are different types of records in the database that will have to be checked against a different set of rules than others. For example one type of record will have to be checked to make sure certain named text files are there. However a different type of record will check for another text file with a different name e.t.c.
I have worked out that in order to do this I need a set of rules that the code in visual basic can match against and run that code depending on the choice. For example one type will execute rule 1,3,5 and the other type 2,4,6. I thought that these could be done in an XML document but am not too sure.
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Aug 8, 2011
So I know it's possible to store Users and Roles on SQL server but I was wondering if it was also possible to store the access rules on SQL Server. I've searched but I can't find anything.
Our auditor requires us to run reports that tell us which users have access to which websites. Currently I am parsing each web.config file to see which users/roles have access, storing that in SQL server and running a report off of that but I am hoping there is a better way.
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Mar 30, 2011
I have a simple business rules engine that I need to write. I have looked at both Biztalk and Windows Workflow, but they are to much for what we need to do. This is a process that material will come to an operation, the GUI will check for three rules, one for the operation, one for the steps in the operation, and one for the item coming into the operation. These are the only three checks that will be done. It is possible there will be more than one rule for each check. I have a simple database set up to contain all the operations, steps and products and there is a crosstab table that links all the rules to each item. Here is an example of some rules (these are actual rules from the process):
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Jul 16, 2009
I was wondering what Rules/Guildlines poeple for Closing vs. Hiding forms?
example:Should i only close a form when i am finished with it?
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Nov 24, 2011
Rules:
Rule 1: Replace all of the vowels (A, E, I, O or U) in the original password with a number as follows: (20 points) Replace the first vowel with the number of 1. Replace the second vowel with the number of 2. Replace all other vowels with the number of 9.
Rule 2: Replace all of the numbers in the original password with the letter Z. (15 points)
Rule 3: Reverse all of the characters in the original password. (10 points)
Rule 4: The enter password should be non case-sensitive. All the letters in new password should be in upper-case. (5 points)
This is what is should look like:
My code:
CODE:
Right now I'm not worried about the efficiency of the code (i.e. simplifying code into fewer lines). The problem I am having is the locating and replacing of the vowels. When running the program the code will replace all of the numbers with "Z", reverse the string, and make all letters uppercase. When it comes to locating the vowels, the program squares the number it goes through the string by the number of letters that it contains. I don't know why it does this.
when the string contains more then 1 vowel the first time it goes through it replaces all vowels with 1, then goes through again and replaces all vowels with 2, and goes through again repalcing all vowels with 9. These are all then combined into one string.
The research I have done has only turned up how to replace vowels with one thing (i.e. all vowels become "*")
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Jan 24, 2011
I'm trying to write an Office 2007 COM Add-in which will check some rules before mail is send. Below test code works but I have several warnings in VS2010
[Code]...
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May 10, 2011
I am having trouble with my code for Guess my number. I am definitely amatuer. Yes it is a homework assignment. No I am not asking you to do it for me. But I am stuck.Your GUI program is a game to be played by the user. See Screen Shot on Screen Shot Tab..A new employee is working on a classified mission and the program will randomly pick an expected profit to be guessed by the user.The program must randomly select an number within the range of 1 to 900.Do NOT use a 'Start Game' button to generate the rand number. Generate a rand number when the GUI is loaded.
1. Create a form that displays the rules of the game on a label.
2. Create a textbox for the user to input the guess and also a 'guess' button.
3. If the user is outside the given range, provide a proper message (<1 Is not a valid guess or >900 is not a valid guess)and clear the guess.
4. When a user has a valid guess, display a proper message (either too high or too low) and tell the user to guess again.
5. With a correct guess, display a proper message and change the form's background color to red and disable the guess textbox.
6. Create a reset button that allows the user to play the another game with a new random number.
7. Create a show me button that displays the number and does not generate another random number (allow the current game to continue).
8. Create a exit button to exit the program.
9. Ensure that you include error checking to prevent a user guess that is out of the given range and for any non-numeric characters.
10. Create a single Help menu item that launches a message box that displays valuable and meaningful information for the program and usage.
11. Create a label that tracks the guess count per game. Each time a new number is generated, start the guess count at 0.
12. Create a max guess limit set to 5 and use a progress bar to track the progress to approach the limit.
13. After each valid guess (1-900), clear the guess and update a label/textbox that displays all of the previous guesses up to 5 entries.
Here is my code so far. I have been working on one point at a time and then testing it. I have not even made it to numbers 11 - 13. I am not getting actual errors. Instead of my reset button clearing all fields at once I am having to click it more than once. Instead of displaying messages per scenario the message label is staying on either input a number or your number is too low. My Answer is not displaying when Show answer is clicked-perhaps my answer coding is wrong? [code]
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Apr 22, 2010
On one side, in Vb.Net when you add an event handler to an object the created method is named: <NameOfTheObject>_<NameOfTheMethod>.As I like to have consistent syntax I always follow this rule when creating event handlers by hand.On the other side when I create private variables I prefix them with m_ as this is a common thing used by the community, in C# people use to put _ at the beginning of a variable but this is no CLS compliant.
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Jul 27, 2010
is there a way to validate controls on a form, where the validation rules themselves are stored in a database table?My problem is my application is used to submit forms to mulitple government agenices both local and state level. Every entity seems to have there own rules about what needs to be in what location. i would like to not have to code all of the various rules for all the different fields. My thought was to store them in a database table and then perform validation based on rule table lookups...however I would like to use the .NET validation controls.
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Jun 15, 2012
I have been trying to create a set of grammar rules for a speech recognition program with an array, but cannot seem to accomplish this task. Here is the general idea:[code]But this did not work, because I cannot convert strings into srgsoneof.
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Feb 2, 2011
I need to write some code to tell the user when daylight savings starts and ends in another timezone, this is what I came up with but it keeps selecting the last Else line. The other lines are working fine, the problem is only with the lines, daylight savings today and not tomorrow. There is probably a much neater way of doing this but I thought this would work.
Private Sub Auto_Time_Change()
Dim sydneyTime As TimeZoneInfo = (TimeZoneInfo.FindSystemTimeZoneById("AUS Eastern Standard Time"))
If TSSlblTimeZone.Text = "Normal Time" Then
If CurDate.AddDays(1).Day = "1" Then
[Code] .....
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