Values Deactivated In A Combo Box At Runtime?

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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Javascript - Change Values In Combo Box By Selection In First Combo Box?

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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Redraw When Form Is Deactivated?

Jan 20, 2009

We are using a ribbon control from a 3rd party that has a bug. When you click on another app, fragments of our software still shows on the screen. The company that makes the ribbon is working on a patch, but I would like to get the app working while we are waiting. how to force windows to repaint the client area behind the form when the form is deactivated?

I've searched and been reading through posts, but most everyone wants to repaint portions of their app. I want windows to redraw what should be there when my app isn't in front anymore.

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Add Combo Box At Runtime?

Aug 2, 2009

How to create Combo box at run Time with its Click events and Key Press events.

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MainForm And ChildForm TopMost Activated/Deactivated?

Feb 24, 2011

I have 2 FormsOne is my mainform, one is a "child" form.The childform has no control box.he mainform has a toggle button to show and hide the childform.

Private Sub ButtonShowHideChildForm_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonShowHideChildForm.Click
If ChildForm.TopMost Then

[code]....

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Keep Combo Box Kept Unedited On Runtime?

Dec 27, 2011

There are some List of items in my ComboBox Collection to choose the necessary on run time.But on Run time, I can also write the value on the combo text and it is also saved in the database. I dont need anything to be changed on the combobox. I need only the items to show in the dropdown list. No other items can be added to the database using combo box on the run time.

how can i manage that without using e.SuppressKeyPress=True ?

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Combo Box List Populated At Runtime?

May 10, 2010

I have a project that currently uses an XML config file to create some groups. Based on these groups, you can search a database for information. What I want to do is create a form for editing that file. I can get to the information via messagebox, but when putting it into a ComboBox, I can't get the list updated. I have tried the text property which only populates the initial selection, and the Items is a read-only property. Nothing else looks close to what I want to do.

My other thought is to populate a datatable with the information and then populate the combo box from the database. It seems like an extra step that I shouldn't need, but it may be the only option right now.

The reason it can't be hardcoded is that the XML config file is already being used by a program, and the file may be updated from two or three computers, meaning I need a central location for the file.

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Resetting Datagridview Combo Box Data At Runtime?

May 31, 2012

I am creating grid on form load event. Initially I am setting some values in datagridview combobox as :

Dim dgvc As DataGridViewComboBoxCell
datagrigview1.Rows(0).Cells("Column1").Value = txtColumn1.Text \setting selected item
datagrigview1.Rows(0).Cells("Column1").Value = txtColumn2.Text

[Code]....

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How To Add Values To Combo Box

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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How To Get ALL The Values From A Combo Box

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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Adding Values To A Combo

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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Combo Box With Hidden Values?

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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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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Fill Two Values In Combo Box?

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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Get Duplicate Values From Dgv Into A Combo?

Dec 14, 2011

I am trying to get duplicate values from dgv into a combo:

[Code]...

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Display 2 Values From A Single Combo Box?

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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Don't Display Blank Values In Combo Box

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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Iterate Through The Values Of Combo Box Control

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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Load Enum Values To A Combo Box?

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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Saving All Values From A Combo Box To A File

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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Text Box To Enter The Values For The Combo Box?

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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.net - Load Up Combo Box Values Once (at Login Screen)?

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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Asp.net - Combo Box With Multiple Columns And Related Values

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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C# - Fill Combo-box Via DataSource Using Values From Various Columns?

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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Comobox Combinatorics - Selected Value Is ALL In The Combo X, I Cannot Get The Values?

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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Extracting Values From A Data Bound Combo Box?

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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Form Show Selected Combo Box Values?

May 13, 2012

[URL]

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Insert The Values Of A Combo Box Into A SQL Server DB Table?

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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Pass Values From Combo Box To A Batch File?

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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Selecting Two Values From Combo Box To Return A Price?

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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