Forms :: Binding Combo Box To Xml File
Apr 14, 2009i have an xml file that looks like:
<?xml version="1.0"?>
<ROWSET>
<ROW>
[Code]....
i have an xml file that looks like:
<?xml version="1.0"?>
<ROWSET>
<ROW>
[Code]....
This is the contents of the text file:[code]I have a combo box on a form and I want to bind some of the data from the text file, the stuff highlighted in bold, to the combo box.
View 4 Repliesi try to bind database to combo box but having (Object reference not set to an instance of an object) error during the running.
How can we add a list to a combo box from a txt or excel file when entering an account number. the details must only be displayed for each defferent acount information. for example. account no 3332 must show a name and telephone number in to separate comboboxes. although it must contain lets say 4 telephone numbers and 4 names that are located in a text document.
View 2 RepliesI am having a problem setting up my combo box to pull its menu from a SQL Server table and store to the main data table.Currently my drop down list displays correctly but saves 'System.Data.DataRowView' to the data table. My main data table is called 'Survey' with staffname as a column, then I have another menu table of staff member names which populates the drop down menu.I found that when I remove the DataSource and populate the Items collection instead the combo box saves the correct value as expected but when I use the datasource it saves the words ''System.Data.DataRowView',[code]
View 2 RepliesI have a combobox that is databound to my webservice. Code works perfect.
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My issue is I need to be able to call that function from another form. I have a form that I add a new customer with and want to refresh the data in the combo box, and select it has the selected item. How do I do this? I have tried several ways, and it just does not work.
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I'm trying to bind data to a combo box but it does not appear to be working. I've setup the DataSet and the DataSetBindingSource and all this appears to be working, within the form design I can expand the little arrow in the ComboBox control and preview the data. This appears to be working but when the application is run, nothing appears in the drop down box.
I have the following code in place:
Code:
cmbSelectCompany.DataSource = ContactsDBDataSet.Company()
cmbSelectCompany.DisplayMember = "CompanyName"
cmbSelectCompany.ValueMember = "CompanyName"
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how 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
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You have a pseudo-table class and a pseudo-row class. The row is somewhat generic and has no strongly-typed fields. It follows the typical dictionary interface
Dim age As Object = person("Age") 'accessed via default property Item
vs
Dim age As Integer = person.Age 'an actual property typed as an Integer
What's the pattern to use so that we can bind our pseudo table and its rows to a grid or combo box?
Dim rs As New clsResultSet(tblPeople)
Dim id As Object = rs(0)("Id") '913
Dim name As Object = rs(0)("Name") 'Ted[code].....
I'm having problems binding 2 combo boxes to a generic dictionary, this is what i have done so far
Dim cb As ComboBox = sender
Dim name As String = cb.Name.ToString
Dim dict As New Dictionary(Of String, List(Of String))
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I've done data binding to my Combos and it works fine but my data base has over 260 000 entries, so I can't let user to move trough it, one by one entry until finds a match.What I am looking for is that user select value from Combo Boxes and Text Boxes get filled in with a matching values from the same row.Auto Complete helps in selection but I still can't work it out how to get values to my text boxes.
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I have combo box being filled with more than 50 thousand records. it is getting sometime to load and bind the data. I am using datatable to bind the data. I tried using data-reader as well but in vain.
View 3 RepliesIf I load a datatable, and then set a listbox properties pointing to it, I get the right data, e.g.:
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I get System.Data.DataRowView instead of my actual data.I don't understand how the databinding is actual happening, and how I refresh my the data in the control when the data changes.
I have two forms with a label on each form. Both labels are bound to the same tbl/fld in a database. When I run program and use binding navigator to scroll thru the data on form 1, I want the form 2 label positioned at the same point when it is shown.
View 2 RepliesI have controls on a form, bound to an SQL data source. The information populates the control well. When I change the text in a bound textbox, I want it to be reflected in the SQL database. When I change the text in the control, the DataSet is updated. Now I need to make the DataSet update the SQL table.
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On my first form, I have a combobox that is bound to the Locations table and displays all the different locations. Once a location is selected, a 2nd form is loaded which has textboxes which are also bound to the Locations table and are populated with the corresponding data.
Here's my issue: on the 2nd form, I have combobox that is bound to the Offices table. Currently, when this form loads all the available offices, displaying with the first office in the list. I need it to populate with the correct office based on the selection made on the combobox on the first form. I guess what I'm asking is, how does one bind a combobox to a foreign key b/c it is the foreign key, office_refnbr, from the Locations table that needs to display in the Office combobox.
I've tried a variety of bindings, including:[code...]
I have a list box which is containning diffrent groups from database. On the form i have multiple controls like checkboxes, text boxes and so on. Wht i have to do when some one selects a entry from list box the others controsl should be populated from that value. User can edit the data , delete the data and so on.
View 1 RepliesI use the binding navigator in my application, but when the resolution of the display gets to small and I have to use the scrollbars, then I get a problem. The scrollbars automatically scrolls down below the navigator bar instead of showing it when the window loads. I figured it out using focus or select. it now loads on top,but then I got a second problem.When I press on my tab-control it "autoscrolls" down again and puts the tab-control as the first visible thing on the screen instead of the navigation bar. How can I prevent that?
View 1 RepliesWhat I would like to do is bind a combobox to my own object which is as follows:
Public Class Categories
Public Sub New(ByVal myConn As SqlConnection)
Dim myConnection As SqlConnection = myConn
myConnection.Open()
[code]....
(I have put breakpoints and I know this object has data.)So on my form how do I bind my combobox to this object? The code I have is below:
Dim bs As New BindingSource
bs.DataSource = New Inventory.Categories(myconn)
cboCategory.DataSource = bs
cboCategory.DisplayMember = "Description"
cboCategory.ValueMember = "CategoryID"
but it returns the following error: Cannot bind to the new display member. Parameter name: newDisplayMember
I have a windows form that I bind to a datatable via a binding source. The binding is done in code at run time. Eg;Me.txtCode.DataBindings.Add(New System.Windows.Forms.Binding("Text", bsForm, "ToolCode", True)) (bsForm is the binding source)This works well except if the form control is hidden (I have a couple controls on the form that hold Record ID and Version numbers that the user doesn't need to see). Databinding doesn't seem to work reliably for hidden controls.
View 10 Repliesit's about object binding, yes it's just a simple binding. but i don't know why it won't work.for summary, i will write about what i am doing:
1. i have one solution, and have two project in it. WaitressDataWin and WaitressDataObject
2. inside WaitressDataWin, i have 'waitressdata.vb' . this is my simple form , there are some basic textbox (waitress name, address, phone)
3. inside WaitressDataObject, i have 'waitressDataObj.vb' is where i put my object class, i have WaitressName property, WaitressAddress, and Phone.one of my property is like this, others are same except the name of course.
Private _WaitressName As String
''' <summary>
''' Gets or sets the Waitress Name[code]....
4. i create data source , that is object data source. i add reference so i can add my second project which is WaitressDataObject and set the WaitressDataObj as the data source.now i have datasource with three properties (WaitressName, WaitressAddress, Phone)
5. I bind my textbox, by dragging the WaitressName (in datasource) to my waitressname textbox .. so on to all my properties.., i also get bindingsourcecomponent, WaitressDataObjectBindingSource
6. then I put this code to my form load :
dim wdm = new WaitressDataObj
Me.WaitressDataObjectBindingSource.DataSource = wdm
7. done, it should've been worked, but it didn't , i don't know why.. , every time i fill one of my textbox, the properties didn't set the value, i put breakpoint in the 'set' part of all my properties but it never breaks anyway.. (the 'get' part is good, it read my property value when i load the form). so i just had problem in my 'SET' Part.
8. I think i had checked on my variable (word, case sensitive,etc), no problem.
have a binding list which i want to be able to add and remove items.This is the class im using
Friend Class ExecutableItem
Public Property Text() As String
Public Property Method() As Action
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I'm trying to get the text portion of the combo box when a value is selected. I can get the selected value, but if I look at the selectedText or Text property the value is "".
I'm using the following
Private Sub cboVendorSearch_SelectionChangeCommitted(ByVal sender As Object, ByVal e As System.EventArgs) Handles cboVendorSearch.SelectionChangeCommitted
clsVendor.ID = Me.cboVendorSearch.SelectedValue
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I am using a Combo box control to select from a list of Databases, and when one entry is selected I display a listbox of certain objects in the database.Other controls are then used to filter the list based on either name or content.Now, I want to know how to Re-load the original list based on the current combo box selection by using a 'Reload' button.In the button code I am setting focus back to the combo box, but whatever I try I cannot make the list refresh again. I've tried Select, SelectedItem, Text and Find methods but nothing works.How do I reload the listbox without having to manually use the drop-down and select the same item again?
View 7 Replieswhat I want to achive is to have a centralized control of my data-forms from my toolbars (toolstrip), like navigating (PREV-NEXT), SAVE, DELETE, CANCLE and so on instead of having it in every form. it worked beautifully in my VB6 projects. below are the codes i did in .NET and it don't seem to work and I guessed it about my use of late binding in .NET.
This is what I have done that don't seem to work. In my project module, frm is declared Public as form object Public frm as system.windows.form().form
Im my childforms i want as soon as the forms are load, activated or have focus, should instantiate or create the form object in my frm. [Code] while in my menu or main form (parent form) with toolstrip buttons, this actually where all individual forms are called. [Code]
and it's flagging an error there:
frm.CloseForm is not a member of System.Windows.Forms().Form
and I must say here that I declared all the subs im calling in the childforms PUBLIC, and of-course frm being a late binding type may not have all the Public Method on it.
[URL] some properties aren't showing in my vb just like the one needed in the video..my computed column is made only by
-project
-add new item
-dataset
then i just changed the expression property
I have an ArrayList that are separated by the pipe:
colA | colB | colC | colD
How can I bind that array into separate columns in a datagrid each with their own column header?
I have a binding source, a Data Table, a Table Adapter and a combo box. How to fill a combo box using these parts? When I fget done I am Showing System.Data.... Example.JPG
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ok, got a question here, two really. first i'll ask the hard one, as i think i have my other one out of the way so i'll save it for later but i made a program where a user enters in dimensions in several text boxes in inches. there are radio boxes that the user decides what thickness of wood they would like to use. what i'd like to do is add metric into the program and use two combo boxes. one combo box drops down and you can select inches, centimeters, or millimeters. the other one drops down to choose the thickness of the wood.ok now here's my question. say i pick inches in the first combo box, i'd like the second one to display only the thickness of the wood in inches, no metric. if i pick centimeters, i'd like the second combo box to display the thickness of the wood in only centimeters, no millimeters or inches. and the same goes for millimeters.i also have the program on a timer that runs at 100 milliseconds so the user can quickly see the differences in dimensions they put in instead of having to hit the calculate button over and over and over (not sure if that really matters or not, had a couple issues with the boxes earlier but don't think it was timer related now)but is this possible? basically just looking for the kinds of drop boxes that you see on a page like autotrader.com where you select dodge, and then only the dodge cars are listed, select chevy and the chevy cars are listed, etc.
View 7 Replieshow do i get items in combo box to appear in a list box
View 1 Replies