TextBox VScroll Event?
Nov 9, 2009
My problem is that the RichTextBox control has VScroll and HScroll events, but the TextBox control doesn't have such kind of events. It is possible to follow continuously the first visible line of the textbox by means of the SendMessage Api function in a thread and in case of the change of the first visible line, we can say that the VScroll event occurred.
[Code]...
This code runs correctly. However my program is extremely slowing down with this method. How can i solve this slowness problem or is there more practical way to learn when the textbox is vertically scrolled?
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Apr 28, 2011
i need to add vscroll control to a form in VB.net and i need to use it to scroll the form where i need to add more controls in the form where the size of form not able me to add them ? and i need to know how to make the scrolling to show more controls in the form ?
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Feb 18, 2011
How can i use Vscroll to scroll an access database and display the data in single line textbox one by one.The data are numbers.
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Apr 15, 2012
i have here a form2 i want to view the data's by using a vscroll bars. but when i drag the tool vscrollbars, it cannot go up and down.
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Mar 25, 2010
I am trying to use a VScroll control on my form but it seems it doesn't want to cooperate! Here's what's going on : I want to use a VScroll control with these simple properties :
Minimum = 5
Maximum = 10
SmallChange = 1
As we all know the VScroll has an arrow facing upwards and another facing downwards. I simply want to press that cute little arrow that looks upwards and to increase the value by 1. Respectively, when I press the other cute little arrow facing downwards I would like it to reduce the value by 1. However that uncooperative controls does exactly the opposite thing! I looked in MSDN and in a VB2008 book I have and found out that actually the up arrow is used to decrease the value! In the whole universe upwards means increasing and downwards decreasing, how come VScroll is not respecting that?
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Sep 10, 2010
is it posible to change a width of dataRepeater vScroll control
OR
How I can simulate mousewheel on datarepeater.item ?
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Aug 16, 2010
In VB6 we had a code inside textBox_MouseUp to call textBox_KeyUp(-1, 0) and the signature of KeyUp was
Private Sub textBox_KeyUp(ByRef KeyCode As Short, ByRef Shift As Short) Handles textBox.KeyUp
Now when I migrate to .NET I changed the KeyUp event to Private Sub textBox_KeyUp(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles textBox.KeyUp
How can I do this call textBox_KeyUp(-1,0) now from textBox_MouseUp event?
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Dec 13, 2011
how can I detect if press Enter in the Textbox Change event and not in Textbox Keypress?
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Apr 24, 2009
I have the following event.
Private Sub txtOperationCode_Keydown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txtOperationCode.KeyDown, cmdEllipsis.KeyDown
Dim oOperation As COperationOutputTypeBS
[code]....
i wanted that on the form that i am calling in the event :frmSearchOperationCodes I will call txtOperationCode_Keydown event because I wanted that if txtOperationCode_Keydown is executed something will happen upon showing the other form.i have a textboxt, When i encoded a character on the textboxt and the user will press tab or enter automatically a form will be shown with a datagridview showing all items related to the character encoded on the textbox.
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Feb 11, 2009
I have set up a Textbox Resize event, but when I execute the form, it doesn't allow me to change the textbox size. I'm not sure what code to show; this is a VB.Net book exercise that I'm running in VB 2005. [code] I have tried setting the Border to something beside 'Fixed'. All resize references I have found refer to Forms or tables. Is there a property that allows users to resize a textbox?
(
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Jul 30, 2010
How can I bypass the TextChanged event if I populate the textbox during loading?for exampleWhen the VB Win form application starts it loads several text boxes with deflt information.thus firing the TextChanged event. (which I don't want to happen)
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Feb 19, 2012
I have a textbox control to take some input and a button to execute something. I want the button's click event will not work as long the validation to the textbox is successful.
Private Sub txtSuffix_validate(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles txtSuffix.Validating
If Not txtSuffix.Text = "" Then
[Code].....
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Sep 26, 2011
i have one project any one textbox.i want to get the textbox value without textchanged event how to get the textbox value. means when i change the textbox value then the text changed event is fired but when i clicked one another textbox at that time i want to get the textbox value in vb.net
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Aug 20, 2010
the scenario is the following: I have a textbox ,next to it a button. The user types a value in the textbox, he presses tab, I search this value in the database in the LostFocus event, if there is no match, a browse form shows and the user can select the desired value. After closing the browse form, the focus goes to the next textbox control (and exactly this I want to prevent). The user can click the button next to textbox to choose a value (the browser form appears), but in this case, after closing the form, the focus remains on the textbox control, because before clicking the button, the focus was on it.
So, my question: how can I disable the LostFocus event? Ok, I figured it out: I must use the validating event. It works. But in this case, if I close the form, the event fires up. How can I disable this?
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Dec 23, 2011
I have created a form to update an access DB table. My issue is that when the text in the text boxes is changed and the form is submitted, the .text values stay the same as they were when the datareader loaded them on the page load event. How can I submit the values that the user updates, not what is already there from page load.[code]...
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Mar 10, 2010
I want to let TextBox control TextChanged event fire only when there are more than one character in the TextBox.
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Mar 23, 2009
On the KeyDown event of the textbox, i need to capture the character pressed and send it to a function which fires a sql query for this character.To get the character i am using Convert.ToChar(e.keycode).However Convert.Tochar converts the keycode to char according to its ASCII value , thus F4 gets converted to "s" as "s" has ASCII keycode of 115.Is there some other way to convert the keycode to character which won't make these wrong conversions as even if i restrict the functions keys there may be problem with other key conversion also.
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Aug 23, 2010
I have been working in an Migration Application where i find out some weird problem , Leave Event Fires twice causing validation to fire twice , hence i want to intercept the events to be processed by application..Hence require help in hooking the delegates so that i can get a list of the events that are to be processed .If anybody can help me out by giving some info or code as how to implement hooking in a textbox leave event/
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Jul 25, 2010
I used textbox.leave so that when user leave the textbox, it will fire a function.
Under some cases, I would like to disable this textbox.leave event.
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Mar 18, 2010
anyone know how to invoke the KeyPress event ? This code shows what I would like to do, but it simply calls the eventhandler and does not insert the text into the text box, so is not what I want/need.
[Code]....
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Jun 1, 2011
How to restrict the textbox input to be a-z, A-Z, 0-9?How to make the enter key event in the textbox?
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Jun 9, 2011
I want that by using on changevent a calculation can be done in vb.net windosapplication. Suppose I had got some textbox like
totalamount(t) , amountpaid(ap), balancerefund(bf), amount due(ad),
If t > ap Then
bf textbox shows the amount
Else
ad textbox shows the amount
End If
How to this through an on change event
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Apr 26, 2010
I am writing my first app in VBEE and require your expert assistance.Once a button is clicked in my app, a number of queries in Access 2007 are run. I would like to display the progress of these queries and send text to a text box informing the user of the progress, i.e.[code]I have entered the Text I want to display but it does not update it as it progresses through the code, instead it updates all of the text at the end, once all of the queries have been run.I would also like a progress bar to display the progress of the queries [code]
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Jun 11, 2011
Anyone know how to make the return key used in a text box trigger an event?
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Apr 19, 2012
I have a textbox on a tabcontrol page, and when someone tabs out of the textbox, it is suppose to move to the next tab. This was working great before I switched the form from a UserControl to an actual Form. This change did not change actual code. So now, I have tried everything. I have the textbox to set to AcceptTab = True, and I have KeyPreview = False (because if the form grabs the event before the textbox does, it would mess things up I am assuming).Here is my code for the textbox:
Private Sub txtMsgDTG_KeyDown(ByVal sender As Object, ByVal e As KeyEventArgs) Handles txtMsgDTG.KeyDown
'check for tabbed out
If e.KeyCode = Keys.Tab Then[code]......
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Sep 5, 2010
I have a Textbox on my application that recieves data from another application via a sendmessage call from the other app.
I can see the data being entered in the textbox but the TextChanged event never fires when the text changes. I need to process the data that is sent but since the event does not fire I'm kinda stuck..
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Jun 7, 2009
I have a textBox and a button's click event used to add the textBox.text to a listBox. Is there a way to add the textBox.text value to the listBox without having to click on the "Add" button. Such as, simply typing the text and hitting ENTER on the keyboard?
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May 31, 2012
I am finding it strange that the lostfocus event is always executed once when I launched my application. in my lostfocus event, I have some code that queries the db based on the textbox value. It is supposed to be 13 characters. So when i launched my app and presses the first character in the textbox, it is givin an error. When i debug the application, I found out that the lostfocus event is getting called once when i start the application.
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Mar 10, 2011
I am trying to write an onclick event for textbox but VB.net does not seem to support textbox1.click(). I want to open a new form every time someone clicks on the textbox. Opening a new form is no problem, but I cant detect the click. Is there any event for textbox that detects click event? I saw something like TextboxBase that has Click but I am able to use it well.
This is how my class looks :
Partial Public Class TextBoxClick
Inherits System.Web.UI.Page
End Class
It has some basic load and init events. I am trying to write a Sub like this :
Private Sub incident_clicked(ByVal sender As Object, ByVal e As System.EventArgs) Handles Incident.OnClick
Incident.Click does not work either.
I am guessing I need to import some class to access the Click event but I am not sure which.
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Mar 2, 2009
I'm am trying to access the value of a textbox in my gridview during the RowEditing event in order to populate a dropdown list in my gridview and I keep getting a value of Nothing. I have tried everything and can't seem to figure out how to do this. The textbox I'm trying to access is "job" and the dropdown list is 'DD_CostCodeEdit'. I've posted my gridview code and also my RowEditing event code.
Gridview code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:GridView ID="TimecardGridView" runat="server" AllowSorting="True" AutoGenerateColumns="False"
[code]....
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