Deactivate A Combo Box Once User Has Selected An Option?
Jan 20, 2009Is it possible to deactivate a combo box once a user has selected an option?
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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.
Restrict User To Modify Field Selected In Combo Box?
Jan 7, 2012If there are fields in a combo box as i press the drop down arrow. and if i select a field... then it should not b deleted using a backspace or anyother key..
View 3 RepliesThe Combo Box Style 1 Has Both The Drop Down Option But Also A Manual Entry Option
Jan 26, 2010the combo box style 1 has both the drop down option but also a manual entry option. I need to know how to code it so that when you manually enter data, it takes that data and places it in a text message "The shipping charges for "data" is $15" displaying in a text box. Shouldn't be hard but have developed a mind block.
View 4 RepliesMy Program Isn't Selected The Right Item That Click On - Allows A User To View A List Of Foods In A Combo Box
May 1, 2012I am creating a program that allows a user to view a list of foods in a combo box, add that food unto a list box, and adds all of the calories of that food together. When the user highlights their select food, the program automatically shows the amount of calories for that particular food in a text box. The program is getting the food and calorie information from an access database. I managed to get all of the food calories to add up properly, however, I ran into a problem. Sometimes, well, most of the time, when I select certain foods from the combo box, the program automatically reselects another random food, usually a food that begins with either an A, B, or C. Also, the other random food that the program chooses usually has the same amount of calories as the food I originally wanted to choose. I have over 6,000 items in the database. I don't understand why this is happening. This is what my code looks like for the button that adds each food to the list box:
Private Sub Button4_Click(sender As System.Object, e As System.EventArgs) Handles Button4.Click
Foods_Selected.Items.Add(ComboBox1.Text)
Static i As Single
[CODE]...
And this is what my code looks like for the button that adds all of the foods together:
Private Sub Button1_Click(sender As System.Object, e As System.EventArgs) Handles Button1.Click
Dim x As Single
Dim TotalCalories As Single
[CODE]...
I have no idea what to try. It's like the program just skips over random foods, even though all of the information for them is in the database.
VS 2005 Using Combo Box In User Control And Getting Selected Value In Another User Control
Aug 31, 2009i am using vb.net 2005 to developed desktop application I am having two windows form user control , the first control name con.vb containing the design and code for connecting to database and getting a list of my project values in combo box.
Now the second user control report.vb which i am using to generate some reports , since the code behind is using connection to connect to various project database , so i want to get the value of
First user control into another how i can get the i have tried the below but its giving me error in run time but no error in design or code behind -
MR.MainForm.Connection1.project_combobox.SelectedV alue.ToString
Error i am getting is :
System.NullReferenceException was unhandled
Message="Object reference not set to an instance of an object."
Source="MDR"
Forms :: Selected Item In Combo Box Will Not Appear In Another Combo Box?
May 27, 2011how do i program by saying if a certain item is selected in a combo box then that item will not appear in a second combo box. i have this code for now but it does not work
[Code]...
Created A Combo Containing Three Option?
Mar 20, 2009basically iv'e created a combo containing three option, Small, medium and large.What i want is when i select "Small" in the combo box, "3.50" Appears in a textbox.
View 10 RepliesSelected Item In Combo Box Will Not Appear In Another Combo Box?
May 27, 2011how do i program by saying if a certain item is selected in a combo box then that item will not appear in a second combo box i have this code for now but it does not work
j = 0
Do While j < cmbSession.Items.Count
If (j <> lesson) Then
[code].....
Save A User Selected File (FolderBrowserDialog) To A Location Selected In Another Dialog (SaveFileDialog)
Jul 5, 2011I'm creating a BASIC application, and I can't figure out how to save a user selected file (FolderBrowserDialog) to a location selected in another dialog (SaveFileDialog).
View 5 RepliesAsp.net - Grey Out A Dropdown, Dynamically Activate When Option Is Selected
Oct 21, 2011I have three dropdowns, which are all loaded in the same function. How do I grey out dropdown 2 & 3? I want them to activate if a certain choice is made on dropdown 1.
View 2 RepliesChecking If Option Selected And Radio Button Checked?
Mar 29, 2010How do I make an if statement that would check if the user has selected an option from the select list named cboGrade and also to check if the user has selected a radio button from the group named gbCalcType? I have an action that is carried out when a button is clicked, but before that action is carried out, I need to check the above.
I have this so far:
If rbPlus.Checked Or rbMinus.Checked Or rbMultiply.Checked Or rbDivide.Checked Then
instructions are here
End If
This checks that one of the radio buttons are selected. How do i check that an option is selected from the option list? There are three options: 3rd, 4th, and 5th. And the text starts out saying Select One and it locks the control once they choose one.
Select From A ComboBox - Option Selected Is Shown, But Not Activated?
Apr 1, 2011basically i'm making a webbrowser, and i want it to select and option from a dropdown ComboBox, on a certain button click. I use this code which i found it on these forums as well:
For Each element As HtmlElement In WebBrowser1.Document.GetElementsByTagName("select")
If element.GetAttribute("id") = "wrapper_opacity"
element.SetAttribute("value", "51")[code].....
The problem with this code is that it just inputs the selected value, but it doesn't really SELECT it.The option selected is shown, but not activated.
Clear The Contents Of The Datagridview So That When Each Option Is Selected Only That Data Is In The Grid?
Jun 22, 2009Public
Class LoanCalc
Private Sub butCalc_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles butCalc.Click
'This procedure executes when the user clicks the Calculate
'button to produce a loan payment based on the requirements
'as stated in the service request.
'Variable Declarations
Dim douPrincipal As Double = Me.txtPrincipal.Text
Dim douInterest() As Double = {5.35, 5.5, 5.75}[CODE]......
How To Change Selected Option Of Textbox Based On Datareader Result Vb
Feb 6, 2012I have this code:
Private Sub EditPage_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load'TODO: This line of code loads data into the 'InventorySysDataSet.tb_master_products' table. You can move, or remove it, as needed.
Me.Tb_master_productsTableAdapter.Fill(Me.InventorySysDataSet.tb_master_products)
sqlCnn = New SqlConnection("Data Source=ZEREYSQLEXPRESS2008;Initial Catalog=InventorySys;Integrated Security=SSPI")
[Code]...
what i want to do is to automatically change the selected option of the cboProductCode on page load depending on the result of a query executed onload also.
Get Combo Box Selected Key Value Asp.net?
Jun 22, 2010How do we get combo box's selected value in asp.net as we use to do in classic asp??
View 2 RepliesAllow User Select The Sign Name From A Combo Box If User Choose?
Jan 18, 2011Write an application that tests the user�s knowledge of road signs. The application should display a random sign image and ask the user to select the sign name from a Combobox.
View 12 RepliesCombo Box Not Up To Current Selected Value?
Jul 18, 2012For some reason, before the selectedindexchanged sub routine finishes, combobox Description is still pointing on the last selectedindex changed and the combobox Image is on the actual current selected index changed. Once it exits the routine both combobox are in the current value.
I cant see why this is happening, causing a lot of trouble.
Private Sub Connection()
con.ConnectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:TestDatabase1.accdb"
[Code].....
Set Selected Text In Combo Box?
Jun 11, 2011I have a form (vb.net, VS2010) which retrieves product orders and displays the result to a datagridview and text fields. I also have a combo box which displays a list of all products in a product file. I need to set the displayed text of the combo box to match the product name of the ordered product.[code]...
View 2 RepliesUsing Selected Item In Combo Box?
Mar 11, 2010i need to use the selected item in combo box when user selects for example GREEN from be drop down list after than i need to put that green into the rest of my code, i need to draw a line in green but i dont know how to tell the program to use Green i tried setting up a variable for that, like : Dim rang as string = cmbcolor.selecteditem but it doesn't work
View 7 RepliesCreating A Local User With The Option "User Must Change Password At Next Logon" Set
Oct 19, 2010I am currently creating a tool that can manage local user accounts on Windows-PCs. I am using the functions described on
this MSDN page ; and after some struggling, I got most of them to work.
Unluckily, I haven't found a way to set the option "User must change password at next logon" while creating a new user account. I use the
NetUserAdd -Function to create the new user. I set the level to 1 and supply a
USER_INFO_1 -Structure . This structure accepts flags, and the flag UF_PASSWORD_EXPIRED seems to be exactly what I want - but when I set it, the user can log on without changing the password first...
I'm developing on Windows 7 Ultimate 64-Bit using Visual Studio 2010 Express.
Here's my code:
#Region "Constants"
Public Const UF_PASSWORD_EXPIRED As Integer = &H800000
Public Const USER_PRIV_USER As Integer = 1
[Code].....
Fill With The Selected Item From The Combo Box?
May 9, 2011I ahve a combox (cbnames) on a login form which is populated with items. I make a selection and click on ok. Form1 appears and I have a textbox which I want to fill with the selected item from the combo box.
However, on form1 (view code) I don't appear to see cbnames. cbnames is available on the login form. How do i make a combobox public? or accessible to other forms?
Transfer The Selected Items From Combo Box?
Nov 7, 2010i need to transfer the selected items from various combo boxes into a particular frame or a label...
View 2 RepliesCombo Box Selected Index Changed Event?
Jul 1, 2009Here is my code for programming a program that reads from a file called RESORT.TXT
Containing the text:
Barb Allen
604 777 1234
[code].....
Comobox Combinatorics - Selected Value Is ALL In The Combo X, I Cannot Get The Values?
Mar 2, 2011i 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
Determine And Obtain The Value Of The Item That Has Been Selected In The Combo Box?
Apr 1, 2011I am having difficulty using the selected value of the combobox while calling it from the ok button click event procedure. While debugging in the Ok button coding none of the values are their, but for the comboxbox coding it appears that it is working properly.I made a seperate funciton to handle the combobox, could this be my error?
ComboBox
Public Function choosepipecomboboxcoding(ByVal cboChoosePipe As Object,
ByVal HDPE As Double,
ByVal PVC As Double,
[code].....
Disable Controls When Items Are Selected From A Combo Box?
Apr 30, 2011How to disable other controls when an item is selected from a different combo box. When someone selects a specific item from the combo box provided, It should automatically disable other controls specified to be disable.
View 2 RepliesEnable Control Based Upon Selected Value Of Combo Box?
Aug 19, 2010I am trying to enable/disable a date time picker control based upon the selected value of a combo box. The combo box is linked to a dataset here:
>Start Code
'Load Disposition Combo
cmDisposition.DataSource = dsFFDIlu.Tables(0)
[code]....
I am getting the error:
Invalid Cast Exception : Operator '=' is not defined for type 'DataRowView' and type 'Integer'.
The dataset 'DIID" field is obviously an integer.
Find Newly Selected Text In Combo Box
Sep 17, 2010How can we Find newly selected text in Combo Box. Whenever I do this, I get the old text instead of the one they just changed to.[code]
View 10 RepliesForm Show Selected Combo Box Values?
May 13, 2012[URL]
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