How can I bind a TextBox to a Setting withoute using code like this below?
Private Sub Form1_Load(ByVal sender
As System.Object,
ByVal e As System.EventArgs)
Handles MyBase.Load
TextBox1.Text = My.Settings.MyString
[Code]...
I am binding a textbox's text value setting to my a variable in my configuration file. I only consider the input from this textbox to be valid if it's an integer number bigger than 1. Right now what I was doing is letting the user write whatever he wanted in the box, and I'd only let him save the settings after calling a validation function. The problem seems to be that my binding variable in the Settings class seems to be being updated as soon as the textbox is being edited, and that's a behaviour i'd like to skip. How can I do this?
View 3 RepliesBinding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
View 8 RepliesI have a class from where I need to set objects in another form?
Form1:
vb.net
Function SetMyObject(ByVal frmTarget As Object)
frmTarget.PictureBox1 = Form1.PictureBox1
End Function
(Not tested code, just wrote to show what I mean)So that's the late binding one.I should also say that the frmTarget variable isn't static so thats why I can't make something like Form2.PictureBox1 = Form1.PictureBox1
PROJECT TYPE: Windows Forms Application
LANGUAGE: Visual Basic
.NET VERSION: 3.5
IDE: Visual Studio 2008
OPTION STRICT: on
OPTION EXPLICIT: ON
I am attempting to get 7 NumericUpDowns to display the value of the application setting they are bound to. Each UpDown has its own setting binding. The setting is a decimal datatype with a value of either 4 or 6 as default. I need the UpDowns to display the setting value when the form loads. At the same time, I need any change made to the UpDowns to be saved to the same setting so that the application can both display and use the new value the next time it runs. Unfortunately, the only way I can get them to display anything other than "1" is to hardcode a constant value, and I don't want it to be constant. I think this is the last bug in my application and would love to get it figured out, but I've spent over 8 hours on it with no luck. Here is the applicable code.
[Code]...
I am trying to create a basic webpage that will check a column of a database table to see if a "UPC Code" is taken already, to prevent duplicate use. I'm fairly new at .NET programming, but have built asp pages before. I'm just stumped :/
I have a textbox that a user can type in a number. The page successfully checks to see if the textbox is blank and reports the error, and if there is a value, it's supposed to bind that textbox number to a gridview to see which Item# it's associated with. But for some reason, my code is not binding the value of the textbox to the gridview.
Code:
<%@ Page Title="Home Page" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false"
CodeBehind="Default.aspx.vb" Inherits="UPC_Checker._Default" %>
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
</asp:Content>
[code]....
'Initialize an array
Dim myArray() As String = {"One", "Two", "Three"}
'as expected the text property of Textbox1 displays "One"
[code]....
How do I get Textbox1.text to display the new value in myArray(0)?
I have a DataGridView that is bound to a BindingSource. Below this are a group of textboxes that are associated with each column in the DGV. I tried to bind the textboxes to the BindingSource but realized their was no DataSource property for the textboxes. How can I bind them?
View 11 RepliesI have the following code where I'm trying to bind a datarow to a textbox.
Me.TierNameText.DataBindings.Add("Text", Me.m_TierRecord, "tier_name") Problem is, when the form is displayed no text is shown in the textbox.
This code runs before I call the form's ShowDialog method. I stepped through the code to make sure the datarow has data, and indeed it does.
I rarely use databinding but thought I'd try it this time.
I have been searching for an answer for this for almost a week now, and I can't seem to find a way to do this. I would think it is a relatively simple thing...
I have a ListView, and one GridViewColumn contains TextBox items. I want to put a Label right underneath the ListView, and fill it with the sum of the items in all the TextBoxes. Whenever someone changes a value in any of the TextBoxes, the sum should change, too.[code]...
have a TextBox with binding like below Items is table name and ItemName is field name i am using DataSet binding TextBox with ItemsBindingSource - ItemName i am type in textbox rose milk i want to store in propercase like Rose Milk how can i do?
View 1 RepliesI have a table on an sql server and am creating a form to manage the records in the table. On the form I have a combobox to navigate between records and am using this code to populate a dataset and the combobox...
[code]...
Also on the form I have various textboxes to edit the data for each record, and when the combobox selection changes, the data in the textboxes change. I know I can update the selected record when the contents of a textbox changes, but is there a way to bind the textboxes to the current record? What is the perfered best) method of handling this?
I am running Windows 7 and have an application that has a textbox bound to a Property in a Custom Class that Implements IEnumerable.When I call Raise Event to update the textbox it will only work the first time.However, the application works on every other OS I have tested on (XP, Vista). Also if my custom class does not implement IEnumerable it works correctly.Is this a bug? Am I doing something wrongform with a textbox and a button. The Textbox is bound to the Total Property in the class.
Public Class Form1
Private oDS As New DataSource
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
[code].....
I was trying to bind the telerik chart with below code, then it is thoughing an error as per the screen shot.any one have idea how handle this error.Logic explanation: Am assigning the data table as listdata datasource and trying to bind the data based on table rows count.
Dim listdata As new DataList
listdata.DataSource = ds.Tables.Item(0)
BaselineRadChart.Clear()
[code].....
Saving data from textboxes to a dataset Default Values - Binding Navigator But i could not do it or didnot understand how to do it. I have a Binding Navigator created by the wizard, I want to put a value "A" in a Textbox when adding new record (press +). I had tried to use this code in txt_site_GotFocus and BindingNavigatorAddNewItem_Click
View 2 RepliesIm having some wierd behavior on a bound form in vb.net 2008. I have setup a client form, with another tab that has contacts for that client. the contacts tab has a binding navigator at the bottom, so the user can move amongst the contacts. all fields on that form are bound to a bindingsource called bsContact, using a table adapter called "ContactTableAdapter"
if i have a contact already saved, and want to modify the contact info, the form binding doesn't seem to recognize that i have changed the value of a textbox on that contact.i would think that if a textbox is bound to a bindingsource, then if the value of that textbox changes, the bindingsource would know about it, but it doesn't. The dataset.HasChanges returns false, and my save wont happen. (see code)so, when i hit the movenext on the bindingnavigator, it changes to record 2...i change a value on a textbox...i hit the save button on my form....no update will happen.
Update: I noticed that if i am on the tab with the multiple contacts, and i change a textbox on the form, then i MOVE TO ANOTHER RECORD, then the dataset recognizes that there was a change, and the update happens. Why doesn't the textbox immediately notify the dataset that a change is happening?
[Code]....
i have three textboxes.After entering vales into the textbox the data should be displayed in gridview without going to the database.
View 2 RepliesI'm unsure as to how to take two pieces of information from a table and display them into a textbox. The textbox should display the 'Balance' and the total money available for withdrawl (balance + overdraft limit). I believe I need to use the data bindings command e.g. TextBoxDetails.DataBinding.Add?
View 1 RepliesI have one DataGridView named dgv.dgv is pretty much a plain gridview. No bounded data. No columns added. It's basically empty.I also have one DataTable named dt.I add rows and columns manually into dt.
dt.Columns.Add(New DataColumn("TexBox", GetType(String)))
dr = dt.NewRow()
dr("TextBox") = String.Empty
dt.Rows.Add(dr)
I then simply set dgv datasource into dt.
dgv.DataSource = dt
dgv.Refresh()
I then set the value for this particular cell.
dgv.Item(0,0).Value = "xxx"
Now when I run and execute all those commands. I happen to retrieve the gridview with that value indeed. The "xxx" cell appeared and currently it's uneditable.What I want to achieve is:Allow this "xxx" cell to be editable. Preferrably if it can be inserted into a TextBox control inside the cell.
I Have a question about binding (pageID + PermissionID) to a checkbox/ checkboxlist, without using a textbox or any other tool. The thing is, i'm working on something just for exploration is it possible to have multiple checkboxes all bind to a different pageID but all have same permission. (lets say the permission is view-only) So when some checks a checkbox with ID 1, ,5,9,19,56 he gets view permission to those pages. when he uncheckes then they get deleted.
View 1 RepliesMy another question is in txtlani textbox I have to enter only digit i.e. 0 to 9 and currency formate i.e. 1,000.00 and 1,00,000.00 it is possible in text box.and another text box which I have to enter only date i.e. at run time in the text box show dd/mm/yyyy formate and I have to enter by user to enter date not to be left blank i.e. how it will show in the back end not null in MS access on both the text box?
View 5 Repliesi need a hand on how do i set my initial value for textbox as blank. I tried to I load my textbox a data coming from my database but what my problem is that I need to set my default value for textbox as blank because everytime I load the forms the textbox will be filled immediately with data. This is how I bind my textbox and combobox after loading from database.[code]
View 1 RepliesI tried to increment a value as long as I press a button. The incremented value is connected via binding to a TextBox. The problem occures when I update the underlaying integer. I get an exception that another Thread owns it.
<Button Name="Up"
Content="Up"
PreviewMouseLeftButtonDown="Up_PreviewMouseLeftButtonDown"
[Code]....
I'm have a list box where I want my data bound to a data binding source. Easy enough, just set it in properties. But I want to be able to change the values to a different binding source when I click a radio button. In other words, for each radio button I want a different set of data in my list box.[code]
View 2 RepliesI am using the BindingNavigator control on my form. I want to use my own buttons instead of "BindingNavigator". I tried double clicking on "Binding NavigatorMoveFirstItem" button to see the code behind it. But nothing is there.What is the code to use the BindingNavigator but on my custom buttons? Actually I want to use my custom buttons but the same code which BindingNavigator uses and then I will delete the BindingNavigator.
View 7 RepliesWhen the program is executed, the datagridview populate data and also the textboxes(example StockNumber,Description) and when i typed words in the search textbox ,the datagridview filters the matching words.When I clicked the item in the datagridview the textboxes does not changed it didnt show the information...
what the solution for my problem..i need to display the information in the textboxes when i clicked the item in the datagridview. Private Sub txtreg_delsrch_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtreg_delsrch.TextChanged
[Code]...
I am binding the data from combobox to textbox.In the Combobox Click event i coded as below for binding:[code]In the above code only the first value is showing in the textbox but when i select next value in the combobox the value is not changing..Is any loop i need put for binding? B`se i need when ever i change or select the value in the Combobox then the corresponding value should be change in the Textbox.
View 2 RepliesWe are working with an existing native application (most likely written in VB) that loads assemblies and calls methods with "Late Binding." We do NOT have access to its source code. We want to implement this interface in C#, and have the native application call our C# assembly. Is this anything we have to do beyond matching the method names and method signatures to make it work?
View 2 RepliesI'm trying to code the delete button in my binding navigator and I keep running into errors. This is what I have:Dim msg As String = "Are you sure you want to delete the current record? " If MessageBox.Show(msg, "Confirm Delete", _ MessageBoxButtons.YesNo) = DialogResult.Yes Then _CustomersBindingSource.Remove(DataGridView1.CurrentRow)
End If
Me.TableAdapterManager.UpdateAll(Me.DatabaseDataSet1)
Even when I change it to _CustomersBindingSource.CancelEdit and I debug it, the Delete button in the binding navigator looks like it set to enabled = false, but in the properites it's set to true.Even if I add enabled = true at the top
Can anyone post some example code for an App.config file that uses a binding redirect with the CodeBase tag and an href attribute that points to a file system location? I can't use a standard binding redirect because it is a 3rd party dll that includes the version number in the dll name.
View 5 Replies