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When I enter values in the textboxes and then press a button (=leave the edit) I find that table (myDataSet.Table(0)) contains all the values I entered besides for the last control/textbox that I was in.
A year ago I saw a beautiful simple code that gets a data table and saves it in an excel file. The trick was to use the web library (something with http) and I'm almost sure it was a stream. I find a lot of code with response but I can't make it work in a win-form environment. There is also a cell by cell code - not interested -too slow. I want to paste it as a range or something close.
View 5 RepliesI don't find a CanGrow property on the Textbox control. This is common in some other controls, and what it does is expand the control to acomodate more data. Anyway to get this feature in the TextBox?
View 4 RepliesI have a winform and i have about 30 labels and 30 picture boxes on it. What i would like to do is fill each label and picturebox with a value and image from a backend database. I could have easily done this in vb6 using control struture , for eg.
for x = 1 to 30
picturebox(x).image = value from database
label(x).caption = value from database
next x
Is there something similar i can do in vb.net. I search a lot but found only complex programs difficult to understand and too much of OOP.
I am using VB.net to create a simple winform. I have the option to save the data I input on that form. I am trying to prevent the user not to save the data if textbox10 is empty. I tried the 'while' loop but I go into an infinite loop. The code is below. The 'if' statement gives the error but allows the user to save.
While Len(Me.techniciansTextBox.Text) = 0
MessageBox.Show("Please Enter a Technician To continue")
End While
I have a blank winform. A textbox control with name textbox1 being added to the winform. During the form load event, I retrieve 2 string values from database and store these values into TextboxName and TextboxValue variables of string type.
I use TextboxName variable to store that textbox control name (i.e. currently TextboxName = "textbox1") and TextboxValue variable to store that textbox's text (i.e. currently TextboxValue = "Hello world"). My question is how to set the textbox1.text property without have to resort to following code:
If TextboxName = "textbox1" Then
textbox1.Text = TextboxValue
End If
how to set the textbox1.Text property without have to use IF...Then construct?
I have been working on keeping things object oriented for my project. Currently, I'm using a .DLL which supplies all of the app's classes to the WinForms project acting as the presentation layer.My .DLL will, for example, return a SortableBindingList(Of T) to code in a form. The SortableBindingList(Of T) comes from here. Let's assume a SortableBindingList(Of Product). Assuming that the .DLL's function Services.Products.GetList() returns a SortableBindingList(Of Product), I can easily do this:
DataGridView1.DataSource = Services.Products.GetList()
Now, the DataGridView is properly populated with my list of Products. Fine. However, there is no .SelectedItem property which gives me back my object which was selected in the DataGridView:
' Doesn't exist!
Dim p As Product = DataGridView1.SelectedItem
' Need to make another DB call by getting the Product ID
' from the proper Cell of the DataGridView ... yuck!
However, a ComboBox or a ListBox does in fact store and return my Product objects intact:
' Valid!
ComboBox1.DataSource = Services.Products.GetList()
Dim p as Product = ComboBox1.SelectedItem
Another however ... the ComboBox and ListBox do not show all of the fields of the Product object, only the value of the DisplayMember property.Is there a nice control in VB.NET 2008 that I am just missing, which gives me the object oriented functionality that I want which will actually display an entire object's fields and also return that object back when selected by the user?
Visual Studio 2008 service pack 1 comes with Visual Basic Powerpack and has DataRepeatr control. i want to know that how I can add data in this control. i have in memory data. the examples i found on net are about binding DataSet to DataRepeater by fetching data from database. i want to bind in memory data. how to do this.
View 1 RepliesI have a Winform UC packed in a CAB and hosted in an aspx web page using the <object> tag. In IE7, things work. But in IE8, no matter what settings I choose, the control never gets installed. I need to point IE8 to the CAB, download it, unpack it, and run the installer in the client machine, outside IE8. The UC is fairly complex, and requires several DLLs (third party components). The control reads data from hidden fields in the hosting page, and calls javascript functions on the page.
View 4 RepliesI would like to make the Tab movement can also pressing the "Enter" Key. I have google and found the code which possible to used. But I found its not running fine with me. When I press "Enter" key,it runs fine for the tab movement. But if I put something into my textbox,it only allowed me to put 1 character and it will move next. Because the Textbox 2 can able to put in any kind of numbers. But after add in the code that allowed "Enter" key move the Tabindex,it will move to the next tab index after I lick 1 character.
Code:
Private Sub TextBox2_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox2.KeyPress
If Keys.Enter Then
SendKeys.Send("{TAB}")
[Code] .....
How should I do to make the "Enter" key press work as tab?
How can I launch a console application from my windows app and get output from it in a textbox?
View 1 RepliesI have a groupox in a VB.NET winform app. The groupbox contains a few Labels, Textboxes and Checkboxes. This was created by simply dragging the controls out of VS toolbox. What I need to do is take the 1 Groupbox and at runtime create multiple Groupboxes to display based on user selection. Instead of dynamically creating the Groupboxes and other controls nested inside, is there a way to clone or copy the original one. Then I'd just change the properties. Label text, Textbox text, etc. And the location of the Groupbox in the layout.
View 2 RepliesShowing Command Prompt On Winform Control
View 1 RepliesI have attached a image of a control that is used within a coldfusion website. Basically I need something similar to use within a Winforms application but have never seen anything like it in .net. How I replicate this control?
View 3 RepliesI have a list of Active Directory entries (computer names) as a Collection data type. How can I add the computer entries and the pertinent columns to the DataGrid control on my WinForm? I have borrowed this code from some web site to add the list of computer to the pcList which is a Collection type.
pcList.Add(dirSearchResults.GetDirectoryEntry().Name.ToString())
I don't understand why my Label and Text controls are aligned when placed on a winform in design mode, but when I run the application the Label and text controls are uneven and spreaded apart. I using VB .Net 2008.
I tried adjusting the TextAlign property on the label control but the problem still exist.
I need to get all controls on a form that are of type x, I'm pretty sure I saw that code once in the past that used something like this:
dim ctrls() as Control
ctrls = Me.Controls(GetType(TextBox))
I know I can iterate over all controls getting children using a recursive function, but wondering if there is something more easier or straightforward, maybe:
Dim Ctrls = From ctrl In Me.Controls Where ctrl.GetType Is Textbox
UI is created in VS 2008. I'm using C# .... I need to let the user move/focus between text fields from top to bottom by clicking tab button. How can i do it?
View 2 RepliesI try to bind a textbox to a datatable but i cant.. I checked if the datatable is filled (it includes the results of a sql query)and it s ok.. i can depict the result in a combo box but not in textbox. I wait for only one result that s why i need textbox instead of combo.. that s my code..
[Code]...
Here is my [code]...
My textbox (txtCopies) default value is 1 so naturally, as it is coded above, the datarow is added once into the Movies Table. But what I need to know is how to code if the txtCopies field has a greater integer value.
This piece of code grabs a customers hire record using their hire ID and displays their details in multiple textboxes. It all works fine and well, however, I can only run it once. If I type in another customers hire record ID it just displays the first customers details that were materialised, which I assume is because the datatable has been populated and not refreshed based on the new hire record ID I've entered.
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With this I can search a column of a datagridview for a match. It works all fine and well, until I insert a new record into the database at which point I refresh the datagridview to display the newly added record. After I do this, I can no longer search using the textbox. Once again, I'm not quite sure what to do to fix this issue.
When I dispay data sets in a Datetable control. It started with showing the focus on first cell ( i.e. cell(0,0)). How can I set the initial focus to other cell (say cel(3,4))?
View 2 RepliesA Form is to Accept User Name and Password from user, after verification the form should display another form that will accept user's full data. When a user press the Ok button, the information entered on this form should be display in another form (Showing the user what he/she has entered)
i have Design the Firs Form and the second form, how can i pass the information entered on the second form to third, and also what will the code look like I need help on this or Code Sample?
NB: i am trying create an instance of the second form in the third form and declare a variable in the third form that will holed the value, but still not working I want to learn .NET Programming in VC#, ASP.NET And VB.NET. I am student and really get excited when it comes to programming
Currently I have a gridview bound to a datatable which is populated with groups from the AD. I need to be able to add search functionality so users can type in part of a group name and have the results display only groups that fit their search criteria.
Here's what I have so far.
<asp:TextBox ID="searchParam" runat="server"></asp:TextBox><asp:button ID="btnSearch" runat="server" Text="Search" />
<asp:GridView ID="dgSearchDLs" runat="server" AutoGenerateColumns="False" DataKeyNames="cn" DataSourceID="ObjectDataSource1">
<Columns>
[code]....
my Code for fill datatable is :
n1.SelectCommand = New SqlCommand("Select Code from PriceDrystore where AirplanCode = '" & lblAPcode.Text & "' and substring(Code,8,1)='" & lblRoute.Text & "' ", DS)
n1.Fill(z1)result this code = 8 items
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I have a paging control for my datalist. It works fine until I try to increment to page 3. For instance, I have 9 things in my datatable the datalist paging is set to page size of 3. We when I click the button it will increment 1 (to page 2) but it will not go to page 3.
Public Property CurrentPage() As Integer
Get
' look for current page in ViewState
Dim o As Object = Me.ViewState("_CurrentPage")
If o Is Nothing Then
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I have a form with a DataGridView (dgvResults) control on it that displays data from a DataTable (dt). On this same form I have a button that the user will click to update a column (intCommentCode) on dgvResults with a numeric code they have entered in a text box. When the form is first displayed all 100 rows of dt are displayed. The user may filter dt to only show 10 rows. When the user clicks the button, I only want to update those ten rows. The code below updates dgvResults just fine, but dt is not updated, why? I thought that if dgvResults was updated dt would automatically be updated also. How do I update dt to match what dgvResults shows?
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I have a Data Table Column with multiple Rows of data. I need to search all lines of TextBox1.Text for any data that is identical to any row in the specified data column ("MCaddRG"). Also any identical findings need to be made into a new text file or a new form with a text box.[code]...
*Also if it is possible I would really like to have a check box list that contains the data from the "Device" columns so I could check the "Device" and then it search the TextBox.Text for the checked "Device's" "MCaddRG"
What I want to achieve is to Bind just some of the properties of a Control to a DataTable object.Let's say I have a Label on the Form : "MyLabel1".MyLabel is a Class that inherits from Label and adds a property "ID", an Integer, to the base class.
I want to Bind .Left and .Top properties of MyLabel1 to a DataRow in my DataTable, and I want to see them updating, everytime I change MyLabel1 location on Form. I put description and full code, so everyone can test it in minutes :
I have :
--> A Form, with a DataGridView "DGV" : The DGV is for showing at real time the desired properties of the controls I want to bind ( in this case, just one control : MyLabel1 ).
--> MyLabel Class :
Public Class MyLabel
Inherits Label
Private m_id As Integer
[code]....
how to set the Textbox autocomplete source to specific column in my datatable?how can i do that?
View 13 Replies