I have a combobox called 'cptype' with 2 items and a default item 'select'. I also have a button called 'populate'. How do I get the program to randomly select one of the 2 items.
I also have a button called 'reset'. How do I get the combobox to reset and show 'select' when I click on the button 'Reset'.
I had added the items
1
2
3 to the combobox.
Then I gave the "Select" to the text of the combobox.
How can I able to reset combobox to select the text("Select").
I had tried by giving -1 to the SelectedIndex. But it gives only Empty.
This is for VB.NET Windows Application
I have given an Image for your reference
Image path for the reference [URL]
I had added the items 1 2 3 to the combobox.
Then I gave the "Select" to the text of the combobox.
How can I able to reset combobox to select the text("Select").
I had tried by giving -1 to the SelectedIndex. But it gives only Empty.
This is for VB.NET Windows Application
My LINQ query:
Dim groupedData = (From p In pData _
Group By p.TruncParam Into Group) _
.SelectMany(Function(g) g.Group) _
.Select(Function(d, idx) New With { _
[Code]...
When the TruncParam changes, I would like the index (idx) in the Select clause to reset to 1. So, in the list above, the Index should be SOLUB0001, SOLUB0002, INSOL0001, INSOL0002...CLRES0001, SUMCA0001, SUME0001.
How should I alter the LINQ query?
When my program is first run it loads the comboboxfineMe.Subj_heating_txt.DataBindings.Add("SelectedIndex", Me.BindingSource7,Form10.heating_txt.Text)if the user opens a different file (at run time) and then goes back to the orginal file it wont load the combobox properly of the selection is 0works fine if its is 1 or more
View 1 RepliesI have a combobox with a dropdownstyle of dropdownlist (style 2). When a user finishes making entries and clears the form, I want the display value of this to return to null. With an unrestricted combobox, I could just set .text="" and be good to go; that doesn't work with the ones that are restricted.
View 3 RepliesSQL statements:
SQL = "SHOW TABLES;"
Try
conn.Open()
The remarked area works fine when I'm accessing a specific table. I've successfully inserted the products_model field into the combobox too. The datagridview does show the table names in the db using the SHOW TABLES sql statment, but I'm not understanding how to get this info into the combobox instead.
I am a beginer in vb.net. For a school project, i have chosen inventory control as the subject. WIth help from videos, i have developed some basic forms with adding/updating.
The product table design is like this:
Name
Type
Size
[Code]...
Now, i am designing the purchase/sales screens. I am showing the items name, qty, price in a datagrid. From the products table, I am able to select the 'ProductName' by giving it a combobox . I want the ProductSellingPrice also to appear in the next column of the grid.
I have a table in my database with 5 columns (ID1 to ID5) and just one row. I'm trying to bind a comboBox, to show ID1 through ID5 in the combobox when my form loads. I have a dataset and tableAdapter's made for this already. I just want to know how to bind a combobox to those ID values.
View 4 RepliesI'm having a problem with combo boxes. I usually use Java and it's been awhile since I used VB but I never remember having this much difficulty.My application is using an SDF file. From Data Sources, I drag the details on one of my Tables to my Form to get all of the fields. Three of them are comboboxes. Each of the three is an INT64 and each corresponds to a primary key in a different table. I click the tasks button on a combobox and for data source I select the appropriate table that has the data to go with the combobox, for display member I select the field that I want users to see, and for value member I select the primary key. Then I run a quick test and start the app, open the form, and add a new record. When I select a value from the combobox the selection won't validate because it doesn't think it's an INT64 like it should be. It seems to be using the display member as the actual value instead because if I change display member to the primary everything works great.
View 11 RepliesI have a form in my vb.net application used to take the data about the returned stock. The form contains two comboboxes. One, named combobox5, contains invoice numbers and the other, named combobox3, contains party codes. Both the comboboxes are pre_loaded using sqldataadapter.
Now what i want is to change the party code in combobox3 when the invoice number is changed in combobox5. Elaborating it further, When Stock is issued the party code is stored along with the invoice number to keep track of to which party was the stock issued. Now when stock is returned i want to keep track that which party has returned the stock and i want that the party code should be automatically selected when the invoice number is changed and it should be what is stored in the database against that particular invoice number....
I'm using the following code for doing so:
Private Sub ComboBox5_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ComboBox5.SelectedIndexChanged
' defines a new connection to the database
Dim con As New SqlConnection("Data Source=TAHA;Initial Catalog=ADT;Integrated Security=True")
[Code].....
i'm creating a simple search application which have a TEXT box and some combo boxes and radio buttons and a search button.radio button names "Videos", "Audios", "Pics" etc..when radiobutton of video is selected, a combobox is appear having options "DailyMotion", "Metacafe" etc I want that when i click "Metecafe" item in combobox of video, an other combo box appear having items Like "Entertainment", "How To", "+18" etc(categories of video search).
if combobox1.SelectedItem = "PAKISTAN" Then
combobox2.Visible = True
End if
if combobox1.SelectedItem = "INDIA" Then
[code]....
I got on my form textboxes, checboxes but also a groupbox which holds texboxes.
The idea is to be able to clear and reset all of these by clicking a reset button.
At the moment i got this
Private Sub ClearFields()
Dim ctrl As Control
[Code].....
But ofc Me.controls isn't gonna get involved with the stuff in the groupbox.
stock table
fkodsno
[code].....
Ok, so I am building my own program to control a video player I have through telnet, I have everything else working except one thing.I have a reset button to reset the player, when I press it, it sends the string "Reset" and the unit resets without a problem.But when I add a code to close the winsock connection upon reset, it doesn't send the string to the unit. I am sure what is happening is the winsock is getting closed at the exact same time it is trying to send the string and so it fails to send, how do I make it close winsock AFTER the string has been sent? [code]
View 1 Replieswhen i select 1 week so this frm show after 1 week to the current date
View 1 Repliescmd = New SqlCommand("select * from employee_log where log_datetime >='" + DateTimePicker1.Value.Date + "' And log_datetime<= '" + DateTimePicker2.Value.Date + "'", cn)
Suppose if I select two dates june 21 and june 30 then records between 21 and 30 including 21 and 30 should be shown. But the records of june 30 is not shown..only from 21 to 29 is shown by this code. What should I add or edit to this code?
Write a program that asks a quiz show contestant to select one of the numbers 1,2, or 3 and then calls a Sub procedure that asks the question having that number and requests the answer. The Sub procedure should then call another Sub procedure to tell the contestant if the answer is correct. Use the following questions:1. Who was the only living artist to have his work displayed in the Grand Gallery of the Louvre?2. Who said, "Computers are useless. They can only give you answers."?3. By what name is Pablo Blasio better known?This is what I have so far (with errors):
[Code]...
I have a ComboBox and upon formload:
ComboBox1.Items.Add("kHz")
ComboBox1.Items.Add("MHz")
ComboBox1.Items.Add("GHz")
so that it adds those 3 items.
How do I make it so that kHz is shown as the default value rather than just the blank item that is currently shown until the combobox is click on?
i using VB.Net to developing my application.in forms i have comobox, in combobox datas are filled by using datasource from process layer.i want '--Select--' is first items in all combobox. but i tried my ways, i cann't bring it.
View 2 RepliesI have a combox which is droplist dropdown.
It has : Item1,Item2,Item3....
When i use :
cob1.selectedindex =1 then it worked.
BUT when I use : cob1.selectedtext= "Item2" or cob1.selecteditem="Item2"
I have a form with controls on it which are binded to a table, I have records selecters and so on... Just a simple display and edit form(yes I also want to be able to edit them so...) I created this form just by dragging items from the Data sources window.
Now I want to add a combobox which has a list of titles. And here comes the difficult part: When I select a title in the combobox, all the other controls show the matching info(matching to the title), in other words the datatable which is attached/binded to the controls must move to the right record. I have added a query to the combobox , which has two columns: ID and Title. the displaymember is Title and the Valuemember is ID. So I must look in the datatable for the right ID.
I have a combo box with a list of book conditions. When a book is loaded into the form, the condition the book has needs to be selected. How can I do this? Here's what i have: Excellent Very Good Good Fair Poor just for example, how would i select "Good" WITHOUT USING THE INDEX? The database knows the condition text, and condition id. I need to select the condition in the combo box with either. However, I don't know how to add the condition id to the items in the combo box. How would I do this in Visual Basic 2008? **EDIT** I forgot to mention, although i am using a database, i am NOT using SQL Server. I just need a way to select it with a variable containing either the id or condition.
View 11 RepliesI have tried this code select and set the focus to the combo Box but it doesnt work...
Private Sub DataGridView1_CellBeginEdit(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellCancelEventArgs) Handles dgvProduct.CellBeginEdit
ComboBox1.Visible = True
ComboBox1.Select()
ComboBox1.Focus()
ComboBox1.Text = DataGridView1.Item(0, DataGridView1.CurrentRow.Index).Value
End Sub
i am trying to select the value of combobox programatically.. like my application has a form in that they can edit some field.. one of them can have only few values and they cant be edited.. i am populating them in combo box (dropdownlist type) and later ,
Dim cs As String = reader.Item("Category").ToString
ComboBox1.SelectedText = cs
reader is data reader.. when user click id, it loads all values in all text boxes.. then string cs gets value of that record but fails to select it.. in Main UI the Combo box is blank.. when i click drop down item all values are coming(that are defined previously, but i want only 1 values to be displayed that is associated with that id and its present in that drop down)..
I have a ComboBox that's been bound to a DataView that's taken a filled DataTable. This DataTable has three columns. Before the DataView is bound to the ComboBox I add another column and set some values.
[Code]...
My application stands at the minute where the user can fill in a textbox, hit search and gets the results. The problem is that the user only get the exact name i.e. if he types in golf he only gets golf, what I need it to be able to do is when he types 'go' and hits search it shows all of the entries that contain 'go'.
My Current syntax is
"Select * from Software WHERE STitle = '" + TxtSearch.Text + "'"
I have some text boxes in my form that takes data and saves the data to the database. There is a combo box on the form that loads data from a specific field of a database.
When I enter and save the new data (using the textboxes), the combobox doesn't show the newly entered data. I tried to refresh the combobox using code like combobox.refresh, me.refresh etc....to refresh the form but nothing is working.
The combobox only display the new data when I close the form and reload the form again. Anyway, the data loading in the combobox is done using datasource, displaymember, valuemember in the properties So, how can I make the combobox show the updated record (field)?
the combobox name is cboManager
the Displaymember: Mname
Here's the code
Private Sub frmAdmin_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'UserDataSet.Manager' table. You can move, or remove it, as needed.
[Code]....
I'm trying to create a Select Distinct query, but i'm getting stuck with either an empy combobox either a filled combobox that displays all the doubles.or a message "System.Data.DataViewManagerListItemTypeDescriptor"
I have a form (form5) with 1 combobox and 1 datagrid.The datagrid loads 5 collumns "ID", "firm", "Fname", "mname", "Lname" The collumn "firm" will have some double firms with people in the other collumns ID Firm Fname Mname Lname1 AA John N West2 AA Jim L East3 BB Harry Sick Long4 CC Barry N Klote etc.I would like to select the firm from a combobox and filter the datagrid so that it only displays the selected firm and the people that are registred here. Furthermore i want the combobox that i use for selecting the firms to lose the doubles. I can load the datagrid and load the Combobox, but selecting is only pointing to the record (highlights in the grid) i choose and doesn't filter. Is there anyone that can give me a clue on how to solve this.
Collapse | Copy Code
Private Sub Form5_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'Kjelpasser2012DataSet.Employees' table. You can move, or remove it, as needed.
Me.EmployeesTableAdapter.Fill(Me.passer2012DataSet.Employees)
'Select DISTINCT "firm" from "Employees"
[code].....
I am making a combobox dropdown to filter a report. I am using the table adapter to query the data and fill the report from the selected item in the combobox. However, if the user select index 0 (which is "-Select User-") , then the query should disable the filter and select all users in the database. How would I go about doing this with these 2 conditions?
View 1 Replies