Validating A Datagrid Coloumn?
Dec 15, 2011validating a datagrid coloumn..,i want only alphanumeric values.,symbols like -,+..etc were not allowed..folliwing is the code wht i have.,but it allows only alphabets but not numerals.
[Code]...
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VS 2008 DataGrid - Check Box Ticked Would Like Date To Appear In The Next Coloumn .Net?
Feb 28, 2012I am new to VB.Net and am just learning.. I have a DataGridView in a winform project and have two columns "PO_Created", "PO_Date" (PO_Date being a check box) I would like to know how to have PO_Date populate a date when the check box is ticked.Dragging a check box and a text box on the form and placing the code below in the checkbox control
If CheckEdit1.Checked = True Then
TextBox1.Text = System.DateTime.Today.ToShortDateString
Else
TextBox1.Text = " "
End If
is what I want but I don't know how to do this in a datagrid if someone could give me a hand on this topic that would great.
Validating Datagrid Value Against Dataset Result?
Dec 20, 2011I'm trying to validate the contents of a datagrid cell against the values in a Dataset:
VB
Private Sub dgOperator_CellValidating(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellValidatingEventArgs) Handles dgOperator.CellValidating
[Code]....
Remove Event Handler For Datagrid Cell Validating
Dec 16, 2009I am having a problem with the cellvalidating event constantly firing when the datagrid is refreshed (since the trigger that fires the event is the originally selected cell losing focus).I would like to remove the event handler for this at certain points of my code so that it does not fire but the examples I have come across on MSDN don't appear to do anything, so I guess I must be doing something wrong.[code]
View 1 RepliesEdit Coloumn 2 Of Row 0 Of SSCE 3.5 Database
Dec 3, 2010I just need to edit coloumn 2 of row 0 of SSCE 3.5 database.I am using following code.It generates no error but database is also unchanged.[code]
View 1 RepliesGridview Show And Hide A Specific Coloumn?
Jan 6, 2012I have a Gridview in which a specific column of name "Date".I have set the Visible Property of Column to false because i want to show on different conditions of page.Please tell me how can i do it using vb.net that my Date column should show or hide on runtime
Update
My current code is
If Not Page.User.Identity.Name = "bilal" Then
GridView1.AutoGenerateEditButton = False
GridView2.AutoGenerateEditButton = False
[Code].....
Enforce Validation Rule In Create Table Statement For A Coloumn
Dec 15, 2011I want to enforce validation rule in create table statement for a coloumn. im using vb.net as front end and access as back end.
View 2 RepliesNever Ending Loop While Setting Focus To Control On Validating Event In Cantrol Validating Event?
May 9, 2012I am writing below code for validating compulsary field account no. in form.User's requirement is set focus back on field when error comes :
If txtAccountNo = "" Then
MessageBox.Show("Account no filed can't be left empty")
txtAccountNo.SetFocus
Exit Sub
End If
It's working properly. But suppose user don't want to fill form and exiting from application.Message box keep on appearing till user enters account no.
DB/Reporting :: Validating XML Against XSD?
Apr 2, 2008Basically I have a routine that validates an XML document, here is the code:
[Code]...
If you look at the XSD file you'll see that the element ID is supposed to mandatory in that I have set minoccurs to 1. However when I run the code this doesn't seem to be flagged as an error. Also I get 20 errors like Could not find schema information for the element Employees etc.
NumericUpDown Validating?
May 15, 2009I'am using the NumericUpDown_Validating event to cancel mouse clicks on the up and down arrows of the control.The idea is that the NumericUpDown control will stop incrementing when the base of a form reaches the bottom of the screen. That works, however the textvalue keeps incrementing. Why does the text keep incrementing and how do I stop it?
Private Sub NumericUpDown5_Validating(ByVal sender As Object, ByVal e As .ComponentModel.CancelEventArgs) Handles NumericUpDown5.Validating
Dim y As Integer
[code]....
Possible To Validating A Text Box?
Feb 23, 2011I have a form that has a text box that I want to only allow users to enter a date and then a MessageBox.Show stating that their data was submitted when they press a submit button. I know that you can do this with a regular expression validation but I have no idea how to do this in Visual Basic. Can anyone offer how to do that?
View 2 RepliesValidating A 'Sent' Email?
Jan 12, 2009I have a VB.Net program that manually sends email via the MS Exchange Server. When an email is sent it will always have at least 1 pdf file attached to it. After all the emails have been sent (which could be alot), the pdf files are moved to an archived directory.My problem that seems to be occurring is that some of the attachments are not being moved because they are "locked" by another process. I'm assuming this "other" process is the Exchange server handling the pdf attachment but I'm not positive about this.How can I check to see if the attachment was successfully depositied into the Exchange server?
View 1 RepliesValidating A Text Box?
May 5, 2011I have two text boxes on my form (Text Entries) How do I code either the button or the text boxes to ensure entries are made in them Regards
View 3 RepliesValidating Many Groups?
Apr 25, 2009I'm throwing errors when I call this function before running my calculations:
Function CalcValidation() As Boolean
' Didn't want to leave something out, so I needed a validation to ensure that a selection
' had been made for each component.
[code]....
Validating Only By Enter Key
Jul 18, 2009what I want is the following:
1. I have this form: img1
2. I filled up this form navigating with the tab key. I reach the last cell of the datagridview (dgv): img2
3. now, when I press enter, a new row is adding to the dgv and the first cell of this row has the focus and the cursor is blinking: img3 (while pressing tabs in the dgv, the current cell is always in edit mode, I don't need to do an extra click, I can write immediatly)
4. but my problem is that when I press the left arrow key at the end of the first row, a new row is adding to the dgv in this case too: img4
5. that is what I want to prevent, but the navigating with the arrow keys (switching between cells) should not be disabled, it just should not add a new row to the dgv.
6. and here my related codes:[code]
I think if I press the left arrow key, that fires up the cellvalidating event and after that the cellendedit event. I 'd like to manage this so that if the current cell is the 5th (e.ColumnIndex=5) then it should detect what was pressed (arrow key or enter). If enter then add new row, if arrow key (left) then cellendedit and switch to another cell but in the same row (of course if more rows existing up and down keys are possible).
Validating Only By Enter Key?
May 17, 2010Ivalidating only by enter key
View 1 RepliesValidating The Text Box?
May 18, 2010-When adding a consignment, the system should generate the consignment number automatically in the format XY12-xAB, where x is a number that increases by 1 for each consignment AB is the Shipment Type (EA, SA or SF) and XY12 is the Office ID.I know how to validate it to be XY(digit)(digit) by using regular expression.
If Not Regex.IsMatch(txtShipConsignmentNumber.Text, "(?s)^(XY)d{2}$") Then
MsgBox("Please enter a valid Shipment Consignment Number e.g XY12")
txtShipConsignmentNumber.Select()
But not sure how to implement the other stuff required.
Validating A Number In A Textbox?
Nov 19, 2011I'm writing a part of an application for a movie ticket program.
Basically, I have to write an If statement verifying the age put in a textbox, based on a radiobox that is checked.
So, if the radiobox "PG" is checked, the age in the textbox has to be equal to or greater than 12. If "Restricted" is checked, then the textbox has to be equal to or great than 17.
C# - Toolstripbutton Not Validating Textbox
Nov 23, 2010I have a textbox, a standard button and a toolstrip containing a couple of buttons. In the validating event of the textbox i coded to check whether it is blank. If yes then it shows a message 'Enter Value'. When the standard button is clicked while the textbox is empty, it's validating properly and showing the message but when the toolstripbutton is clicked it's not not validating the textbox and no message is being shown. It seems that I gotto write the validation code explicitly in the toolstripbutton_click event which is too troublesome when there are multiple textboxes and toolstripbuttons on a single form. What I want to know is whether the textbox_validating can be fired while the toolstripbutton is clicked? Handling toolstrips is really a headache. I'm badly in need of it.
View 3 RepliesC# - Validating Dropdownlist OR Textbox?
Jul 22, 2009I have a page where a user can either select a vendor via dropdown or enter a vendor number via textbox. One or the other must have a value. I can do this in javascript easily but how can I do this using a custom validator provided by ajax all on the client side?
Edited:
Protected Sub ImageButton1_Click(ByVal sender As Object, ByVal e As System.Web.UI.ImageClickEventArgs) Handles ImageButton1.Click
If Page.IsValid Then
//save stuff
End If
[code]....
IDE :: Validating A Login Password?
Nov 5, 2007why the following Sub does not work as expected. It has no compile errors but it does not work. It suppose to validate a password entered by a user on a login form with users password in a table called 'passwd' in the LgaPayroll database. If the password entered matches what is in the password field of the 'passwd' table then it will display a form else, it will tell the user 'The password you enter was invalid". My problem is; even when you entered a password that is in the 'passwd' table, it is tells you 'The password you enter was invalid'. Below is the Sub:
Private Sub btnOK_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnOK.Click
' Set the SelectCommand properties...
objDataAdapter.SelectCommand = New SqlCommand()
[Code].....
Textbox Validating Firing Twice?
Jul 27, 2010I have a MDIParent form and 2 child forms. One of them,form1, has a textbox for which certain validations are present in the validating event. The other one has a button on it. When I try to navigate from form1 to form2, the validating event is firing twice for the first time. Is there a way to make it fire only once. And also, this event fires whenever I try to close the mdi parent form Attached is a sample project.
View 2 RepliesToolstripbutton Not Validating Textbox
Nov 23, 2010I have a textbox, a standard button and a toolstrip containing a couple of buttons.In the validating event of the textbox i coded to check whether it is blank.If yes then it shows a message 'Enter Value'. When the standard button is clicked while the textbox is empty, it's validating properly and showing the message but when the toolstripbutton is clicked it's not not validating the textbox and no message is being shown. It seems that I gotto write the validation code explicitly in the toolstripbutton_click event which is too troublesome when there are multiple textboxes and toolstripbuttons on a single form. What I want to know is whether the textbox_validating can be fired while the toolstripbutton is clicked?
View 2 RepliesToolstripbutton Not Validating Textbox?
Nov 23, 2010I have a textbox, a standard button and a toolstrip containing a couple of buttons. In the validating event of the textbox i coded to check whether it is blank. If yes then it shows a message 'Enter Value'. When the standard button is clicked while the textbox is empty, it's validating properly and showing the message but when the toolstripbutton is clicked it's not not validating the textbox and no message is being shown. It seems that I gotto write the validation code explicitly in the toolstripbutton_click event which is too troublesome when there are multiple textboxes and toolstripbuttons on a single form. What I want to know is whether the textbox_validating can be fired while the toolstripbutton is clicked?
View 1 RepliesUsing Cases And Validating Input?
May 18, 2009I am trying to calculate from a case, and it does not seem to work, and I also need to validate when no input is entered and the person presses the calculate button. my code is a follows
Public Class Question2
Dim intSal, intCount As Single
Dim intPiece, intRates, intPay As Long
[code].....
Validating A Column In Sudoku?
Apr 11, 2010I am working on a Sudoku project and am stumped on how to finish my code below so that it will check the rest of the rows in the specified c
Private Function validCol(ByVal col As Integer)
Dim myCol(8) As Integer
Dim valCol As Boolean = False
[code].....
Validating A Phone Number?
Dec 13, 2009I have had a look over some posts in here on a similar theme as to my question but none of them are getting me any further forward. All I am trying to do is make sure that when a phone number is entered in a textbox that it conforms to the following formats:
1) #### ### #### (All numbers)
2) ##### ###### (All numbers)
3) ###### (All numbers)
Validating A String In A Textbox?
Feb 8, 2012I am trying to validate a string that has been inputted into a text box to make sure there is nothing but alphabetical charecters in the textbox. The following code only checks the first character in the textbox...
If Char.IsLetter(textbox1.Text) = False Then
MsgBox("Error! Invalid charecters present")
Exit Sub
End If
I was wondering if there was any way that i could turn this into some sort of loop so that it checks all of the charecters present within the textbox?
Validating A Textbox Against A Database
Sep 22, 2011I'm a beginner using VS2010 Express. Using a windows form, I'd like to be able to validate a textbox against a column of data in an existing SQL table when the user selects a submit button. To my surprise, a google search revealed very little-- a few instructions using C#, but I'd really like to continue learning VB (only background is with VBA).
View 15 RepliesValidating Characters In A String?
Apr 16, 2010How do I validate characters in a string? i.e. The user must enter something into a text box, 8 characters long. The first 3 characters must be TPX, and the remaining 5 must be a number.
View 35 Replies