Binding With SQL Command Text?
Aug 10, 2009
I am trying to get a set of records from the database to show. This page is setup like a search page with two combos for the data, one for a location, and four for different characteristics. Using this data I created a SQL command text that I checked against the database and it works as a script file. I put this in my code with the changes needed for it to run in VB.Net and I am getting an ObjectNull Reference not set to an instance of an object. It is being caught by my try statement so I only have the line number. Here is the code where it is happening.
[Code]...
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Dec 15, 2009
i'm building a Videoplayer custom control (Project called WpfCustomControlLibrary1) and want to add a Load Command.This is what i have added in my class to get this Command:
Public Class VideoPlayer
Inherits Control
...
Public Shared ReadOnly LoadCommad As RoutedUICommand
....
[code].....
i get an error that he cant convert the string in the Attribute "Command" into an Object of the Type "System.Windows.Input.ICommand
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Jun 30, 2010
I'm using MVVM.
<ItemsControl ItemsSource="{Binding AllIcons}" Tag="{Binding}">
<ItemsControl.ItemTemplate>
<DataTemplate>
<StackPanel>
[Code]...
I'm able to capture the command. However, I want to execute the command binding when the mouse enters the stack panel, not when I click a button.
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Apr 23, 2011
I'm running into the following error message when I click the button event: Command text was not set for the command object. [code]
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Dec 21, 2009
If I comment out MdiUpdate() this run fine. When I run it with MdiUpdate I get the following Error...
da.Fill(ds,
"Mdi") Command text was not set for the command object.
I have also taken the code from the select statement and put it into the other 2 (replace the CliendGroupID = 3) and it works fine
Here is the code:
Public
Class NewFileInput
Dim inc As Integer
[code]....
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Oct 25, 2009
I am trying to bind a textbox to a binding source (using the IDE DataBindings Editor) and it works fine except for one thing: if I delete the text I get the subject error. What I want to happen is the datarecord field be updated to a dbnull value -- how do I get that to happen?
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Jan 25, 2011
i am creating a listCollection like this:
Dim risList As New ListItemCollection
Dim cUser As New clsUser()
Dim ds As DataSet = cUser.GetUserRIS(1)
For Each row In ds.Tables(0).Rows
Dim li As New ListItem
[Code]...
however my text and value in the drop down, both show the text. When i debug the above code li.Value = row.Item("risCode") shows the Code correctly, but why does it not reflect when i try to bind it to the dropdown list?
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Oct 29, 2011
is there any way that i could link/bind multiple binding source to only one binding source navigator?
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Oct 11, 2010
I am using SQL Compact Edition and have a textbox binding to a dataset. When I enter something in the text box and try to update the datasource I get that the column Code in the datasource cannot be null. The textbox has a value so why is Code null?
Dim CONN_STRING As String = "Data Source=" & My.Settings.AutoCallPath & ";Persist Security Info=false;"
conn.ConnectionString = CONN_STRING
Dim myCommand As New SqlCeCommand("SELECT * FROM AutoCallDataTable", conn)
da.SelectCommand = myCommand
[code]....
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Apr 16, 2012
I have a rather large unilingual application that I have to make multilingual, meaning no resource file. I don't have the option of using the culture information but need to do it more on the fly at runtime so that the user can change languages either on startup or menu pick while in the application. I can handle that part ok.
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Oct 19, 2011
This is the code string I use in my app. to bind a label to the relivant data field.
[Code]...
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Jun 22, 2009
I have text box which I use the properties window, datasource set to bindigsource1 in my dataset.. I want to trim the text that is being populated.. Is there a wayt o do this through the visual studio gui or is it redo in codebehind?
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Mar 11, 2010
While I am running the project the cursor is blinking in the first name textbox then i am press the tab button then it is move to middle name textbox and then lastname and company name but when I am press after company name then it will jump to the button I want to jump the tab into Lani in Rs which is the next to company name textbox and then it will jump to Enter date.
I am having problem in the Enter Date field in the back end in the MS access I have already set the date in the back end i.e. short Date so, how to Formate the textbox in the front end i.e. in vb.net 2005
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Jul 26, 2011
I have a listBox whose items are to be shown in a textbox format, like so:-
<ListBox ItemsSource="{Binding movieList}" Name="innerList">
<ListBox.ItemTemplate >
<DataTemplate >
[code].....
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May 21, 2009
I would like to bind textboxes to certain columns from records generated from a stored procedure. The error I receive is "DataMember property 'spCustomerHeader cannot be found on the DataSource". I have no problem returning the data to a datagridview but I need this show this data in textboxes.
here is the code
daCusHdr.SelectCommand = cmd
daCusHdr.Fill(dsCusHdr,
"spCustomerHeader")
[Code].....
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Mar 2, 2010
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.
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Apr 13, 2010
I am using this code to save my Binding source data to a text file:
Dim sfd As New SaveFileDialog
Using sw As New System.IO.StreamWriter(My.Computer.FileSystem.SpecialDirectories.MyMusic & "iFX 2011 Playlists" & TextBox1.Text & ".txt")
[code]....
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Oct 18, 2010
binding navigators, datagrid view, binding source are all sql database parts.Will these parts still work if you havent got sql on you pc and your not using an database file (.log and .mfd) and your not coding to them, im using MS Jet/Oledb to code to Excel.What not to put on an Employee evaluation: This employee has hit rock bottom and shows signs of starting to dig.
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Jul 2, 2011
Binding Master Table to TextBox and DateTimePicker and Binding Details Tables to Datagridview then Add / Update / Delete in both
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Apr 30, 2010
First let me say that I am not sure whether or not this should go in this section or the API section, and if it needs to be moved I apologize. My issue is fairly straight forward, but for some reason I cannot get it to work.
I am trying to send a command to a command line and then submit the command. I have been trying without success to get this to work in v2008 Express and v2010 Express, Here is the code I am trying to us:
Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" ( _
ByVal lpClassName As String, _
ByVal lpWindowName As String _
[Code].....
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Jul 22, 2009
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?
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Mar 23, 2010
I have added two text boxes - both multiline.and I have the following.vb Private Sub TextBox1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TextBox1.TextChanged
[Code]...
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Jan 21, 2009
there is a tab control system. It relies on only five text boxes, and their bindings change when the tab is changed The relevant information is displayed. However, if I navigate to a different record...You can see that the same information is displayed in the tab control text boxes, and not the employee's details I just selected in the data grid or the navigation. How can I fix this? I'm not sure what's gone wrong here. Here's the code that changes the text boxes upon changing tab...
Private Sub TabCheck()
If TabState = 1 Then
pnlTabs.BackgroundImage = My.Resources.tabs1
[code]....
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Oct 27, 2010
I need to bind a textblock.text property to a single element in an observable collection, or array element, and have the text update using the INotifyPropertyChanged or INotifyCollectionChanged, whichever is best.
Most examples describe ways to bind listboxes or other list views to entire collections, but my application needs to update several textblocks on a screen depending on notification of a change in one or more elements of an array.
textblock1.Text = MyArray(0)...
textblock2.Text = MyArray(1)...
textblock3.Text = MyArray(2)...
textblock4.Text = MyArray(3)...
Is it possible to bind a single textblock to a single array element? Is it possible to get notification of the proper type that will update one or more of the textblocks if any assigned element changes?
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Aug 19, 2010
I am using Vb 2008 And Access Database. Also i am using Typed DataSet And Data Bound Controls.My Question is How to Retrieve CommandText String written for a Query in Data Source Table Adapters at Run Time.
Also how to Set (Change) the CommandText String for Table Adapters @ Run Time.What i realy want is I am using Data Bound DataGridView Control & i want to allow User to Filter the Rows of Data being displayed at Run Time, for that i want to pass additional WHERE Clause to Query in Table Adapter and Re Call it's Fill Method.
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Nov 5, 2011
I understand there is something called a PAD command which aligns text left and/or right instead of making spaces with quotes & blanks like this: (""). Where would I put it in my code to align my words and numbers left and right?
[Code]...
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Jul 14, 2010
So the app that I am working on requires me to launch shell commands that output text into a command prompt window. I need to be able to capture that text into a string.
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May 17, 2010
I would like to capture the command prompt text and place it into a textbox.
Process.start("C:cmd.exe","arguments")
this starts the command prompt
But how does one capture the command prompt text and place it into a textbox.
From what I have learned just about anything is possible.
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Nov 5, 2011
I understand there is something called a PAD command which aligns text left and/or right instead of making spaces with quotes and blanks like this: (" "). Where would I put it in my code to align my words and numbers left and right?
[code]...
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Aug 11, 2011
So basically i have the need to only process a command when the text box is populated, if the textbox is not populated i want it to throw a simple msgbox
look at my code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
[Code]......
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