Get Duplicate Values From Dgv Into A Combo?
Dec 14, 2011I am trying to get duplicate values from dgv into a combo:
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Javascript - Change Values In Combo Box By Selection In First Combo Box?
Jan 12, 2012I've got some code like the following. I want it so that when I chose an item in 'select 1' it changes the in the second combo box but I'm not sure of the best way to go about it. Does it have to be AJax or can it be done with just Javascript?
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
[code].....
Preventing Duplicate Selections From Multiple Combo Boxes
Aug 6, 2009Ive got 10 comboboxes on my form, each of them have the same items. I'm trying to get so that if I pick something from the first combo box it doesnt show up in the list for the 2nd box, etc. Also, I didnt want to just remove the item, incase the user changes their selection in a previous combobox. [code] Rest of the comboboxes have that last piece of code, with the boxes and stuff changed to the correct ones.
View 7 RepliesPreventing Duplicate Selections From Multiple Combo Boxes?
Jun 10, 2011Ive got 10 comboboxes on my form, each of them have the same items. I'm trying to get so that if I pick something from the first combo box it doesnt show up in the list for the 2nd box, etc. Also, I didnt want to just remove the item, incase the user changes their selection in a previous combobox.Example of the code I used, as im on a different computer right now.
Code:
Dim cboList As New List(Of String)
Dim index1, index2, index3, index4, index5, index6, index7, index8, index9 As Integer
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[code]....
Rest of the comboboxes have that last piece of code, with the boxes and stuff changed to the correct ones.Problem is that it doesnt remove the previous selections correctly.
Duplicate Values In A Datagrid?
Feb 26, 2012I'm using an unbound data grid in Visual Basic. I made the following loop for the purpose of searching each cell and each column for a duplicate value. But for some reason I get a "InvalidCastException" when I try to add a second row.
Private Sub AddJudgeBtn_Click(sender As System.Object, e As System.EventArgs) Handles AddJudgeBtn.Click
Dim exists As Boolean
' ToDo: If the value entered is already on the list, don't add again.
If JudgeList.Rows.Count() > 0 Then
[code]...
EDIT: Adding the entire click event.
.net - Linq OrderBy On Duplicate Values?
Oct 20, 2011m_ListOfsAllFields.OrderBy(Function(x) x.DisplayOrder)
here I have DisplayOrder = 0 for 2 fields, so orderby is messing up and not ordering properly. How can I use orderby to order this collection?
Avoid The Duplicate Values In The DataBase?
Jan 29, 2011How can i avoid the duplicate values in the Access Database?? I am working in VB.NET, to create DataEntry Form. I have Combobox. When enter the value on Combobox and press OK button then the value should check on the database , if the value is not there then it should save on the db. else the Missage will give "It is Saved".
View 6 RepliesAvoiding Duplicate Values In Database?
Jun 21, 2010I want to insert number for City_Id and City_name , i wrote a query for auto generate number for City_Id,working fine but in the city name i want to avoid inserting duplicate value like if Mumbai is a City ihave already saved then system should not allow that name again. neither in small or in capital or mixed letter.
View 4 RepliesChecking For Duplicate Values In Strings?
Aug 5, 2009am new to VB.NET and i was wondering if anyone here knows how to check for duplicate values in strings?
View 11 RepliesDataGrid Validation For Duplicate Values
Dec 15, 2011I need to validate a particular coloumn in datagrid for duplicate values before inserting into database. I am using datatable.
View 9 RepliesRandom Numbers With Duplicate Values
Mar 9, 2010Get Random value with no duplicate
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[2005] Drop Down Duplicate Values?
Jan 20, 2009I have a fairly large Drop down menu:
<asp:DropDownList ID="DropDownList8" runat="server" AutoPostBack="True" OnSelectedIndexChanged="DropDownList8_SelectedIndexChanged">
<asp:ListItem Value="" Selected="True"></asp:ListItem>
[code]......
Avoid Duplicate Values In Datagride View?
Nov 7, 2010How can I avoid Duplicate values in Datagrideview. When I am putting Product Id in Invoice which is adding in datagrideview if it is exist in datagrideview it will Highlight with deferent color and give me massage that this Id is existent in datagrideview
View 4 RepliesChecking For Duplicate Values Before Attempting Insert?
Apr 14, 2011I have a form where two fields on the first page of the form make up the primary key. I want to check for duplicate values before attempting to insert the record, since I don't want the user to go all the way through the form only to find out they can't submit it. So I'm trying to check for duplicate values when the user tries to go to the next page of the form. I wasn't quite sure how to do it, and sure enough I'm getting an error. ("Object reference not set to an instance of an object.") The problem is apparently in my if statement, "If myValue.Length > 0 Then", but I'm not sure what needs to be in place of that.
Protected Sub CustomValidator1_ServerValidate(ByVal source As Object, ByVal args As System.Web.UI.WebControls.ServerValidateEventArgs) Handles CustomValidator1.ServerValidate
'get values
[code].....
Delete Excel Columns And Duplicate Values
Jul 5, 2011I am trying to create a .Net application to edit a excel file by deleting some columns and keeping the columns which we need and then removing the duplicate values based on the first column which is going to be the Serial no. which should have a check to have 6 digits by default like 2563 should be displayed as 002563.
Code:
Public Function GetAllFileContents(ByVal path As String, ByRef errorMessage As String) As IList(Of String)
Dim contents = New List(Of String)
Try
Dim files = Directory.GetFiles(path, "*.xls")
If (files.Length = 0) Then errorMessage = "Please select the files"
For Each file In files
[Code] .....
I am trying to create something different by not only letting me do it for excel files but for say txt and csv files along with it. Removing all the values which I dont want and removing the duplicates and then if possible putting a check on the first column of data that the serial number number should have minimum of 6 characters and then The output file should have all the details in Uppercase
Prevent Duplicate Values Entered By User?
Feb 10, 2012How do I prevent users from a inserting a duplicate value using SQL Query
datatype is VarChar(50)
e.g. the name field has already been defined as "Josh", I don't want it to be able to add another "Josh"
Enter The Duplicate Values.In The Database One Of The Column Is Indexed?
Feb 4, 2011I am sending values from Combobox and Textbox to Access Database in VB.NET.I am phasing the problem when i enter the Duplicate values.In the database one of the column is Indexed.(Yes Duplicates not allow)That column i bind to Textbox("txtperson1").I used the TRY and Catche method to solve the Indexed Problem.when i run the application the value which i enter is not a duplicate that value save on the db. Once i enter the Duplicate value , the message box is showing "The Record alread saved".But After i enter the new value the same message is displaying, it is not saving on the db.
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VS 2008 Updating Database - Producing Duplicate Values
Jul 29, 2009Here is my
cn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=BHgardeners11.mdb;")
cn.Open()
Try
str = "UPDATE Products SET ProductCode = ?, ProductManufacturerCode = ?, ProductsTitle = ?,
[Code] .....
If there is only one item in the database, then this code works. If there is more than one record then the error is produced that it is trying to produce duplicate values. This is down to the Primary key in my database which is the only thing that cannot have duplicate values. However, when I remove the primary key it has the predictable problem that it goes crazy and does weird things.
Error - Create Duplicate Values In The Index - Primary Key Or Relationship
Apr 4, 2011I had restart my program for 5 times, and i still can get through it. the due date just around the corner.
"The changes you requested to the table were not successful because they would create duplicate values in the index, primary key, or relationship. Change the data in the field or fields that contain duplicate data, remove the index, or redefine the index to permit duplicate entries and try again."
LINQ - Create SubList And Skip Items With Duplicate Property Values
Apr 4, 2012The problem is: I have a list of objects, with some containing the same PlanId property value. I want to only grab the first occurrence of those and ignore the next object with that PlanId. The root problem is a View in the database, but it's tied in everywhere and I don't know if changing it will break a ton of stuff nearing a deadline.
So, if I have a list of PlanObjects like such.
Plan1.PlanId = 1
Plan2.PlanId = 1
Plan3.PlanId = 2
Plan4.PlanId = 3
Plan5.PlanId = 4
Plan6.PlanId = 4
I want to take a sub-list from that with LINQ (italics mean an item is not included)
Plan1.PlanId = 1
Plan2.PlanId = 1
Plan3.PlanId = 2
Plan4.PlanId = 3
Plan5.PlanId = 4
Plan6.PlanId = 4
For my needs, it doesn't matter which one is taken first. The Id is used to update a datsbase record.
How To Add Values To Combo Box
Jan 14, 2012I want to Add Values to my combobox in Datareader.This is my code,
Command = New MySqlCommand("SELECT * FROM tableName WHERE id = '" & id & "')
Command.CommandTimeout = 30
dr = Command.ExecuteReader()
If Reader.HasRows = True Then
While Reader.Read()
cmb.Items(dr(0))
End While
End If
I have tried adding it this way but it is not working.
How To Get ALL The Values From A Combo Box
Jan 12, 2011I am familiar with getting a selected value from a combo box but what about if you wanted to get all the values from a combo box then store those values in an array or list. The combo box would be data bound to a source and have an ID as the value member. So How would I get all the values from the combo box.
View 6 RepliesAdding Values To A Combo
Apr 3, 2011I have two comboboxes in my form (cbAdresse & cbVerwaltung). Choosing the value in the first combo, i get the value from the table into the textbox txtAdID. Now i try to use the value in the txtAdID as the parameter for the SQL command selecting the values from the table (tblVerwaltung). These values must be added to the second combo (cbVerwaltung). So i use the following code for the SQL Compact Client:[code]Using this code i get the following value in my combo cbVerwaltung: "System.Data.DataViewManagerListItemTypeDescriptor".[code]
View 3 RepliesCombo Box With Hidden Values?
Nov 10, 2010I have a combo box that is tied to a binding source that loads a list of users from a table. Currently the list of users is a List of String object type. When a user selects one of the users from the drop down, a list is filtered down based on the selection. To do that I currently have to requery the User Table to grab the UserID column of the user selected, which seems a bit inefficient to me.
Is there a way that I can assign a custom object with two properties (UserName, UserID) and have only the User Name is displayed and when I have to filter the list, I already have the UserID, so there is no need to requery the database.
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Deactivate Values In A Combo Box?
Aug 10, 2009I am working with Vb.net and have a form with a combo Box. On load the form is loaded with one of the following details depending on what is stored in the database; Cancelled, Processed and Failed.
TxtColStage.Items.Add("Cancelled")
TxtColStage.Items.Add("Processed")
TxtColStage.Items.Add("Failed")
Then I have an update button and when the user drops down the list he/she can select between Cancelled/Processed/Failed. I want to be able to grey out or disable Processed and Failed, so that when the user updates the field he/she can ONLY update with the Cancelled option ONLY.
Fill Two Values In Combo Box?
Nov 18, 2009how can i fill two value in combo box . first one for visible and second one for backend(key column) like in vb (Item data)[code]
View 1 RepliesDisplay 2 Values From A Single Combo Box?
Feb 18, 2011let me explain further i have table account. in the table are 2 columns namely account_type,Account_name.So on the forms, i want the combo to show the 2 columns even though ony one column would be saved. Am able to do this in access as attached.[code]...
View 5 RepliesDon't Display Blank Values In Combo Box
Aug 20, 2009I've used VB to connect to Excel and get the titles of the different columns in a spreadsheet. These then display in a drop down combo box for the user to choose from. I'm getting lots of empty values in my combo box because not all the columns in Excel have titles. How would I go about telling it not to display them?
Excuse the easy question but I've only started learning to code a week ago.
Iterate Through The Values Of Combo Box Control
Jun 12, 2012Am using a combo box with no of phone numbers .I want to get the phone no one by one in a variable. Now am using the below code to get the combobox values. But still now am getting the following error message System.Data.DataRowView. Please help me to fix this error. am new for vb.net.[code]
View 1 RepliesLoad Enum Values To A Combo Box?
Jul 20, 2009I have a enum,
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I need put the "text" value of all the above Enum values in to a combo box, how do i do it?