Deactivate Values In A Combo Box?
Aug 10, 2009
I 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.
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Jan 20, 2009
Is it possible to deactivate a combo box once a user has selected an option?
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Jan 12, 2012
I'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].....
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Jan 14, 2012
I 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.
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Jan 12, 2011
I 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.
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Apr 3, 2011
I 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]
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Nov 10, 2010
I 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.
[Code]...
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Nov 18, 2009
how 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]
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Dec 14, 2011
I am trying to get duplicate values from dgv into a combo:
[Code]...
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Feb 18, 2011
let 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]...
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Aug 20, 2009
I'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.
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Jun 12, 2012
Am 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]
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Jul 20, 2009
I have a enum,
[Code]...
I need put the "text" value of all the above Enum values in to a combo box, how do i do it?
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Mar 4, 2011
I have A combo box with 5 values in: How would i save all 5 of those values to my file?sw.WriteLine(CustomerIDTextBox.Text + ":" + CustomerFirstNameTextBox.Text + ":" + what????? Once these values are saved how would i go about retreiving them from the file and displaying them back into the Combo box?
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Feb 18, 2009
I'm using the combo box control in VB.It is not bound to a data source.Visual Studio gave me a text box to enter the values for the combo box.When I run the program, there is a blank value?How do I eliminate this blank (or null) combo value? My combo box is a required field.
For example I entered
Option 1
Option 2
Option 3
When the program is ran, the combo box has <blank> (which is selected) Option 1
[Code]...
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Aug 10, 2009
I 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.
Code:
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.
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Mar 10, 2011
I have a few combo boxes that need to be loaded up once and displayed multiple times (whenever the main form is opened) The reason for this is because it's taking about 10 seconds for the form to load each time it's opened due to unnecessary re-querying.
Here is an example of what I have as a combo box source and what I've done.
I've put the query, connection, etc... in a module and call it on the login form - i don't get any errors but the data does not load into the combos.
'In Module
sql = "SELECT DIR_ID, DIR_NM FROM LTC_FBS_DIR ORDER BY DIR_NM ASC"
RConStr = String.Format(RConStrFormat, LoginForm.txtUser.Text,
[Code].....
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Jun 5, 2012
Is it possible to show multiple columns and headers inside of a combo box/dropdown list in asp.net and show related columns values, for an example, if I click on a country name then it should show me all the cities for that country and clicking on city name should show me all the related places.
[Code]...
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Jun 12, 2010
Employee emp = new Employee();
comHandledBySQt.DataSource = emp.GetDataFromTable("1");
comHandledBySQt.DisplayMember = "FirstName";
The above code displays drop list of employees first names in a combo box. I want first name and last name to be displayed. How can i do it?I tried to include two columns FirstName and LastName as below but didn't work.
comHandledBySQt.DisplayMember = "FirstName" + " " + "LastName";
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Mar 2, 2011
i have a form with 3 combo boxes. The value of the combo boxes generates a sql query with 3 parameters. The sql generates a RDLC report.
For example:
Combox1 with values(v1,v2,v3,ALL)
Combox2 with values(v1,v2,ALL)
Combox3 with values(v1,v2,v3,4,ALL)
Me.ExampleTableAdapter.QueryWithParams(Me.ExampleDataSet.Table, Combobox1.SelectedIndex, Combobox2.SelectedIndex,Combobox1.SelectedIndex)
QueryWithParams:SELECT * FROM Table WHERE Column1=@c1 AND Column2=@c2 AND Column3=@c3 Ok the problem is when the selected value is ALL in the combo X, i cannot get the values because i must change the query and kick out the parameter.For example:If the combo1,combo2,combo3 have the values ALL. I don't need parameters.SELECT * FROM Table IF the combo1 is ALL.SELECT * FROM Table WHERE Column2=@c2 AND Column3=@c3 If combo1 and combo3 are ALL SELECT* FROM Table WHERE Column2=@c2 Then in code I look which is the selected value of the combo and upon it i do the query.Is there a way that i do this thing without generating all 8 types of queries?PS. I cannot use stored procedures because i'm using SQL Server Compact
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Jun 18, 2009
I have a combo box which is databound at run time & I need to iterate through it to get all the values in it (not display items) & then add these to an array or collection.
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May 13, 2012
[URL]
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Feb 7, 2012
I want to insert data to a table in SQL DB.I have a combo box with the values "5" and "6". When you click one or the other in the combo box i want these values to be inserted in a database( MS SQL Server 2008).I also have some textboxes which are bind correnctly and have no problem. The problem is with the bindings(i guess) of the combo box. I get sql exception.
Here is a snippet.
Private Sub BindFields()
txtSurname.DataBindings.Add("Text", ObjDataView, "surname")
txtName.DataBindings.Add("Text", ObjDataView, "name")
[Code]....
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Jun 19, 2009
How do i pass the combo box value to some batch file.The UI will have following parameters:Month (for which user wants to generate the report) Full name of the month e.g. January, February etc. Year (for which user wants to generate the report) YYYY e.g. 2009 We will use the following approach:User will select the month and year as per requisition. From dotNet call a batch file, and pass the selected parameters to the batch file
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Feb 8, 2011
As some of you probably already know I'm currently creating a ticket ordering system. I'm having some slight trouble getting one of the key elements of the application to work mainly because I'm not sure where to start with it.
I currently have a form with two combo boxes (one for the origin of the journey and one for the destination). The idea is that the customer tells the employee over the phone where their journey begins and ends. They will also select a date of travel - but the date of travel doesn't really matter to much at this time.
Once a to and from is selecting from each combo box, the price will be shown in a label on the same form.
I have the to, from and prices information in an Access database table and my database is already linked to my application using a data connection.
trying to get to price to display when the two values in the combo box are selected?
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Feb 18, 2011
I am developing a form which needed to display 2 values from a combo . I have table Account with these fields Account_type, Account_name in this table. Even though I am saving only the Account_type in to a new table but when selecting from the combo, I want the account_name also display since the account_type is a code so that user would understand the mening of the acount_type. vb.net code that would display both the code and the account name to this. I used data binding to do this, it also displayed only the code.
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Aug 6, 2009
I'm trying to add some extra key/value pairs to a combo box using VB.NET. The initial item list is generated from a hashtable, which contains a collection of objects.I've managed to add the extra values to the box using the Add method, however I now run into problems when reading back the selected item from the combo box because some list items are objects, while others are strings.
My best option seems to be to load the initial data as key/value pairs by looping through the hashtable, however this doesn't seem to be working too well either because I'm still getting errors.I'm getting frustrated because it's taking me hours to do something that should take 5 minutes!
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Jan 25, 2010
I am trying to create a winform that will allow me to close when the form either loses focus or deavtivate. When I do Me.Show, it will call the deactivate? Is that right or is weird? The way took it was it fires when it either looses focus or is no longer the active form.
Also it seem like I have to click the form in order for it to work right. I tried Me.focus and that does work the way I expected.
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Jul 8, 2010
How do i deactivate sorting in my dgv after a certain button is clicked?
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Jan 15, 2012
I followed the suggestion from [URL].. this thread. however i face a bit of a problem in my case i have a combobox at row(i).cells(0) the code seems to take the last new rows where there's not record and shows error the debug error msg is A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll INSERT into taken(typeID,quantity) VALUES (5,39)INSERT into taken(typeID,quantity) VALUES (,)
[Code]...
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