VS 2005 Added A Few Items In Combobox Dropdown List At Form Load Event
Aug 7, 2009
I added a few items in the combobox dropdown list at the form load event. [code] At the runtime I dont want to allow the user to write something in the combobox as a text.The user can only select an item from the dropdown list of the combobox.
I need to load a large txt file that is in a fixed width format. There are over 45K lines, so speed is important.I need to load one of the fields into a dropdown box and have another field (label) display the text of another field in the related line.I could import the file to an access db if needed, but would rather not as i also want the txt file to update from a link on a regular bases. So having it in a DB would be more work to process that part.[code]
The dropdown box displays all the items previously added to that column.
I want the user to be able to enter a new value OR just pick a previous value from the dropdown list. (This is when inserting a new row)
Problem:
Whenever I enter a value, it jumps around in my table like its on acid or something. Whenever I select a value from the list, it takes me to the line in which the value was originally entered.
I have two forms, forms a and b. Each form has a combo box. The user selects an item from form A's combo box and saves their selection to a database by pressing a button. How can I display their combo box selection from form A in form B's combo box on form B's form_load event?
In a VB.Net application, how can I either: Find the dropDownList selectedIndex position of something just added to a database.Have a form restart with the most recently-added entry showing in the DropDownList, by way of modifying the inline SQL query to display by date/time added
When the form loads I want to fill the combobox with the data present in the database. So I did the below
Private Sub BindCombo() con = New OleDbConnection("Provider=Microsoft.Jet.Oledb.4.0;Data Source=C:UsersGautamDocumentsVisual Studio 2005ProjectsF1pracF1pracBank_Account.mdb") con.Open() cmd = New OleDbCommand("Select * from BankAccount", con) [Code] .....
Doing this code the data is added up in the combobox dropdown list. But when I am selecting a data from the combobox dropdown list,the all the corresponding data of the other combobox also get filled automatically. I don't want to let the other combobox filled with their data automatically....
I am working on the Combobox.I was bind the data from Access database to Combobox in the DropDown Event.Now whn i click the Dropdown for selecting value , for one click the dropdown list is not showing. Some System is coming within few milliseconds it went out for second click the list is coming.This happens only whn i click the combobox first time in the form.After second time onwards the dropdown list coming properly.
I have a datagridview which has a column formatted combobox type. Now I want to determine when I click to these comboboxs, My program will show a msgbox.
on form1 , i have a combobox and a label. on form 2 , i have a checkbox , a textbox , and a label . in the textbox i input the name to be added to form 1 by combobox checked, and the label has a folder directory.
i can add the new item to the combobox on form 1, from the checked box on form 2. what i can't seem to figure out, is how to get the form1.combobox newly added item to show the folder directory label from form 2 on the form1's directory label when i click on the combobox item..
I have a web form in which i have droped 6 dropdownlists and each dropdownlist have previous seven dates to open files from a specific folder concatenated with date at the end of file name.Problem is that when i select first dropdown list it opens file fine but when i select a date from anyother dropdownlist to open file then it open the same file which was opened from the first dropdownlist.Please see the code and make correction in it.
When we click on drop down combobox control in our windows form, it shows the list automatically. But when we press tab and navigate to that control from keyboard it doesn't shows the list automatically. So in other to show the list automatically on receiving focus what should be done?
i have a requirement of using a dropdown list/combobox in data grid for allowing user to select from the list. how can i do that.I want to have a particular column with this option available that should be filled with data from the SQL database.
[Code]...
now in this what i want is that user could select the emp id for which he wants to enter the data.then on the basis of the selection emp name field should be filled automatically and then user enter the salary which get saved after pressing a button on form how could i achieve that in VB.net and using SQL databse
I have a combo box that has a drop down list with long values in the drop down Ex:
LB - Pounds GR - Grams
When the user selects on of the values I want to just show the Abreviaqtions and not the descriptions. So when the drop down is shown it shows
LB - Pounds GR - Grams
When the user selects "GR - Grams" from the drop down list "GR" is the only this shown in the combobox. I've tried TextChange,SelectedIndexChange and SelectedValueChange but I can't get them to work.
I've created a custom control that I insert into my window with the following code Code: <controls:ListExpander Text="Class Diagrams"></controls:ListExpander> The control in question contains several subcontrols, among others, a list. How can create the setup, so I can specify items that should be added to the list?
In which case the SomeItem objects should be added to the list in the ListExpander: Code: <ListBox Name="lstItems" Background="LightGray"> <ListBox.Items> // Items should go here </ListBox.Items> </ListBox> I'm quite new to WPF, but I suppose it's something along the lines of creating a dependency collection on ListExpander that takes object of the type SomeItem? I simply want to be able to give the control a few arguments which it can translate into items in the listbox contained within the the control.
I am using VB.NET together with ADO.NET to create a program. I have set my TableAdapters as needed and bound the correct tables-columns to my comboboxes.My problem though is this:My combobox2 item is bound to a datatable. The table adapter's Fill method (the select command basicaly) includes a public variable in the where clause to fetch the correct results. I ll put some code here to clarify it a bit more.Public Class Frm_inv
i have four comboboxs that are dependant on each other selection.Its working fine but but what i want is to show "select an item" on zero selectedindex of each combobbox when form load.How can i do that???????what i have done is like as:
Private Sub Form2_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load con.Open() Dim dt2 As New DataTable("class") Dim sql2 As String
[code]....
the other combobxes are populating like same code ...
i need some help with this problem. i have seen some solutions but written in C and im not that good to convert from C to vb.net.Well i want to 'do something' when i mouse move at an item of the combobox dropdown list.like when i move the mouse over "jkl" make the button1.text = "jkl"when i move the mouse over "def" item make the button1.text = "def"
I'm writing code some that is supposed to be creating a list of objects pulled from a data base. The list returned has every item containing the value of the last one added. When I debug the code is VS2008 I can see each time that the list.add is performed every other item in the list being changed to the one just added. Here is the code I running. The line containing ListAKAs.Add(itemAKA) is the one where the entire list of objects is changed to be identical to the one just added.[code]....
I'm making a combobox on a form. I want the combobox to have a list of choices from a table in a db. The two columns are a String and a Date. I want the date column to only show the year. I'm hoping I have the code right as it is above, but I'm not positive I've done the whole date thing right.
I want to display the correct records in my SectionName dropdown list whenever the user select/check an radio button (Elem or HS). No radio button is checked during design time but when I run the app, the SectionName dropdown list show Elem records. also when I checked the HS radio button the SectionName dropdown list records does not changed at all..
Private Sub frmLoading_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load If cnn.State = ConnectionState.Closed Then cnn.Open()
My goal is to populate a ComboBox list when the user clicks it but if the form is not valid I want to capture the event and cancel it so the drop-down doesn't appear (if it's empty).[code]...
I have an XML node which I am adding to a generic list of xml nodes:
ListXml.Add(myXmlNode)
Now whenever I change the node afterwards, all members of the list turn into copies of the node. Why would the list keep track of this and more importantly how am I supposed to 'detach' my work node from that list?
I am using VB.NET for Windows applications. What is the difference between Load event,Activate event and Enter event in the Form and in which order the above event is executed.
I want to create a combobox like winform control in VB.Net that makes suggestions dynamically; exactly as the address bar does in Google Chrome or IE 8/9. Basically on each keypress, get a list of items that match the entered text on a background thread(s) and show these items in the dropdown list as they are (possibly slowly) returned - either from DB queries, web services etc.
I have tried a couple of ideas, changing the AutoComplete list dynamically or binding to a list, which I then update. But I am getting some rather odd and incorrect results even when updating the list directly (on the main thread). I also tried implementing my own textbox control that shows a ListBox control where the dropdown would appear - this seemed a lot more reliable but I cannot get it to draw over the edge of forms etc when shown, as the combobox drop-down does.