I am working on windows application form I am having one text box and Listbox. I want if user type on textbox, then List box item is going to be selected, that is working fine. List Box has more than 10,000 records. It takes time to select item from ListBox, while write data in textbox.
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I need to develop a function called SetComboBox that accepts the category(ies) in the ComboBox as a string and returns an integer indicating the index position of the category in the ComboBox. The function is supposed to set the category in the ComboBox Selected Index property to match the string category stored in a database for an inventory item.
View 1 RepliesWhat is the correct way of assigning the selected index's value from a listbox to a variable? The user selects an item in a listbox and then the output changes depending on their selection.
I use:variablename = listbox.text
in the listBox_SelectedIndexChanged event and this works.
When I use the button_click event I use:
variablename = listbox.selectedindex
But this does not work in the listbox_selectedindexchanged event.you let me know if it is okay to use it like I did above or if I will run into problems and why you cannot use the selectedindex method.
You wouldn't think so, but it does when the listbox is bound to a datasource (as far as I can see).
I've reduced the behaviour to the code below. The "if" line toggles between loading a list via data binding and loading a list "manually" (both use the same data table). In each case I set the selected index afterwards, and then change the parent form. With manual loading, the selected index is retained, with binding it is lost. I cannot see how this makes any sense - I don't see why changing the host form should alter any property of the list. Is this a bug?
Public Class Form1
Sub main() Handles Me.Load
Dim ListControl1 As ListBox = New ListBox
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Let me try to describe my problems in the simplest way: I have combobox1 and combobox2. I hope to achieve two things: Combox1 is bound to list1 (a list of string). When a user selects an item in list1, list2 (a list of string) will be obtained from database and combobox is bound to list2.If user specifies text1 in combobox1 and text2 in combobox2, then these two values will be shown in the comboboxes regardless of the bound lists.
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So the results of above code is that goal 1 is achieved, but goal 2 is never achieved. combobox1.selected index is always 0 and combobox2.selected index is always 0 too.
Well, the question says it all. I have tried the _.SelectedItems(0) method, but it is not working at all. It only works for the first item, but for all others it says that "0" is not a permissible index value, or something like that.NOTE: All of my items are constant, as in they will not change. None will be added, and none will be removed.
View 4 RepliesI want to use images as resources from another library.When I set it in the from.designer.vb-file and debug it, then it converts the value from:
ImgLib.Img1
I have two forms ( form1, form2) with a textbox on form1 and a combobox on form2. The combobox is databinded. What I have been trying to do with no success is to alter the combobox during runtime from form1. In the textbox the text displayed always corresponds to the values binded with the combobox. I want to set the selected/displayed value of the combobox to be the text that is on the textbox. This to be done on a button click from form1. I have tried the findstring and findstringexact to locate the index of the corresponding text and alter but nothing. After so many testing I soon realised that if the combobox is at form1 together with the textbox I can do whatever I want with it. But when is on form2 I cannot do anything. When I mean anything I have tried clearing the displayed value with 'selecteditem = Nothing' with no success plus whatever else I try. [code]...
View 1 RepliesI am creating a Rich text file editor, and I want to change the font of the selected text with the font dialog. Here is my code (editor is the rich text box)
Dim font As New FontDialog
FontDialog1.Font = Editor.Font
i am making a richtextbox and some buttons,i want to press a button while some text is selected ,the selected text becomes bold or underlined,
View 2 RepliesHow can i change the selected text to a font with a combobox?
I know how i can do this.
But how can i change it when nothing selected?
when the page loads (I cant use WebBrowser1.Navigated because im using tabs)
i want it to change TextBox1.Text to the Selected Tabs URL
I tried
TextBox1.Text =
CType(TabControl1.SelectedTab.Controls.Item(0),
WebBrowser).Url.ToString()
But i keep getting an error message
in my application the user selects names from a combo box one at a time and then sets a schedule for each person. What I would like to do is change the forecolor of the selected name so when the combo box is clicked again any name that has been selected is red, and unselected names are still black. I have only been able to set the forecolor for all the name after a selection is made.
View 1 RepliesHow do I transfer the value of a variable and place it into the text property of an object on form load?
View 2 Replieshow would i go about changing the text property of a button when clicked. Im using panels to switch between what the form shows but when i click the button to switch panels i want the text of the button to change but i cant figure out what property to change and how to go about doing it.
View 2 RepliesI want to change the text of two labels based on the the selected row of a gridview.I keep getting an error that says the public member row does not exist on linkbutton
Protected Sub LinkButton1_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Dim LinkButton1 As LinkButton = DirectCast(sender, LinkButton)
Dim tour As Label = CType(sender.Row.FindControl("label2"), Label)
Dim depart As Label = CType(sender.Row.FindControl("label3"), Label)
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I have a combo box with font families and another with font sizes.i know how to change the text font properties according to the combo boxes.but now i want to change the combo box selected items according to the text font properties where the cursor is located.but i can't do that.[code]...
View 1 RepliesBasically I want to change a text if certain radio button is selected
Private Sub Form2_Shown(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Shown
If RadioButton1.Checked = True Then
Label11.Text = ("Boca Juniors")
End If
End Sub
I'm pretty sure the Form2_Shown is not correct but I dont know what else to put.
I have an array of textboxes. Lets say this one:[code]What i want to do is set the .Text property for each of the textboxes of the array.I have tried this: [code]
View 1 RepliesI have two UserControls already loaded how to change TextBox text property on a UserControl from the other loaded one.
View 1 Repliesis there a way so that a button will get it's Text Property from an array on form load?
View 4 RepliesI've been trying to convert my VB6 code to VB10, I'm stuck on how I should write it so I can pass a font name to my
function, So far this is what I have and not sure where to go from here. Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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I inherits textbox Control and I added some new properties to it .one of these properties value i want it to change it's value in desgin time when i change Name property of the new textbox
Public Class NewTextBox
Inherits TextBox
Private _txtSubName As String = String.Empty
That is the property for set or get SubstringName of Textbox
Public Property SubName() As String
Get
Return _txtSubName[code].....
that's the property i want to change it's value when i change Name property of the control.i tried to overrides Name property but it's not overridable also i trieds to overloads it but it doesn't work in desgin time.Here is something i tried but it's wronge.
Private _txtName As String = ""
Public Overloads Property Name() As String
Get[code]......
I have a autocomplete dropdownlist(ddl) in my app. When ever I click on the ddl and start typing to find the item I am looking for in the ddl. The ddl is expanded to show all the orders when typing. After I press the enter key to go out and get the order information for that order the Order number in the ddl is missing but here is the weird part. When I don't have the ddl expanded but still have focus on the ddl. When I find the order I need and press enter. The order number is showing in the ddl as the selected one after it has loaded up the order information.
View 6 RepliesI'm making a VB .net program to build a word document, depending on some parameters.Now I want to do an input of a text in a table, where a part of the text is in bold and an other part not. In this case "This is my text andthis is my bold text".How can I do that?
Simple code:
oWord = CreateObject("Word.Application")
oDoc
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I have a weird question and I honestly hope you understand what is happening here: I design my form (using VB.NET) and put on it a few textboxes, comboboxes and a listview. After the design, I want to adjust the TabIndexes for each control on the form. On the right-hand side of the interface is the property box.
I then select the 'TabIndex' property item and enter a number key (for instance 0) for that selected item. I then select the next textbox control and enter the next number (for instance 1) WITHOUT re-selecting the 'TabIndex' property item. As soon as I select the combobox or listview control, the currently selected property item jumps to 'Items' or 'Collections' and does NOT remain on the 'TabIndex' property item. Why is this happening? Everything worked fine and all of a sudden this starts happening. Should I reset the editor settings or how can I resolve this matter?
In the Windows control panel you can adjust the Display properties for which text size to use between the default value which is the smallest size text and 2 larger sizes. How can you get which text size the Display properties are set to for one's computer through Visual Basic code?
View 3 RepliesI am writing an app to be a single button failover of a set of mirrored SQL servers. The app has to handle several other functions (enable/disable and start/stop of services, writing to local registry, copying files from server A to server B, initiating stored procedures, etc.)I have a collection of labels that indicate the status of 4 services on 2 servers, I wrote a function to check the services when passed the machine name, and the service name. Originally I just called the function 8 times (4 services, 2 machines) and populated the labels 'manually'. I have all of this within a timer so that the service status is refreshed every couple seconds. Id like to clean up the code to a single for/next loop that operates on 2 arrays (an array of service names, and an array of labels) such as:
'**Fetch_Status is the function that gets service status, it accepts 2 strings, machine name
'**and service name and returns status "running", "Stopped", as my_status
Dim Services() As String = {"Service1", "Service2", "Service3", etc.}
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The only reason I want the control array is to be able to use the .Text and .BackColor properties of the labels in the loop. If I make an array of strings with the label names it doesnt seem to pick that up.
i want to create a html editor. to get started, i want the app to be able to find certain words, and change the font/color/size/etc. as for <a href=""><b> and so on, without changing the rest of the text after the selected text was modified. i'm sure that it has something to do with RichTextBox1_TextChanged for text that is being typed and just a button click for modifying selected text.
View 10 RepliesI'm making a custom control suited for handling passwords. I have created a control that inherits from a text box and I have implemented a lot of things so far. But what i want to do now is create a system so that when a user types It will display his last character typed for a X amount of time.Is there a way to turn only selected characters into password characters and still be able to get the password text from the Text property ?
View 3 Replies