I am using the following code to populate data in Textbox1:
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I have few functions assigned in TextBox1_TextChanged event. The problem i am facing is this event is fired twice, once after the Fill command and another after the Position command whereas i want the event to fire only once after the Position command. What should i do?
I datagridview and I populate it using a bindingsource. I have the following code in the bindingsources PositionChanged event and it works as I want it to except when I filter the bindingsource.
Private Sub ProductBindingSource_PositionChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ProductBindingSource.PositionChanged
If (Me.ProductBindingSource.Current IsNot Nothing) Then
Dim dr As DataRow = CType(Me.ProductBindingSource.Current, DataRowView).Row
Dim ProductId As Long = CLng(dr.Item(2).ToString)
Dim ResultId As Integer = CInt(dr.Item(0).ToString)
GetReport2(ProductId, ResultId)
End If
End Sub
The scenario is when I click on a row in my datagridview the bindingsources positionchanged event fires and I load a crystal report. Problem is when I filter the bindingsource, even though the first item in the grid is now different the incorrect report is displayed because the bindingsources position hasn't changed.
I have a datatable that contains the rows of a database table. This table has a primary key formed by 2 columns.
The components are assigned this way: datatable -> bindingsource -> datagridview. What I want is to search a specific row (based on the primary key) to select it on the grid. I cant use the bindingsource.Find method because you only can use one column.
I have access to the datatable, so I do manually search on the datatable, but how can I get bindingsource row position based on the datatable row?
I am using the following code to populate data in Textbox1:
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Bindingsource.position/current. after data been updated
View 8 RepliesI would like to make data binding using BindingSource whereby whenever either Next Button or Previous Button is click the BindingSource position will change to display the data at that position.
I know that if I want use a loop of the BindingSource I could do somthing like vb code below but I am not sure if of binding it seperately. I usually bind it through the properties but this I cant because is an image column which I want to bind and I have to us memorystream to display it to reduce memory usage, so I asign it to arrPic so that whenever the BindingSource position changes the image column will be asign to arrPic.
Dim MyRow as DataRowView
For Each MyRow In dtView
'only use non-repeating names
CurrentPicture = Trim(CStr((MyRow("FileName"))))
If CurrentPicture <> LastName Then
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The BindingSource filter the picturenames and add to a listbox. One name may contain about 4 or more pictures so when you select a name from the listbox the bindingsource populate only the pictures have the selected name and you can navigate forward and backwards.All what I want is how to bind a column to a textbox or picturebox by code. I know if it is a dataset I can declare a datarow and bind anything to the columns.
I have the following form1, when called as the startup, everything works fine. Usually after I added a new row, fill in the fields in that row and close the form without leaving that row, both bindingsource listChanged event will fire.
However, when called from the another form. It does not work. bindingsource listChanged event does not fire when I close the form after adding a new record. Likewise dataGridView1_RowValidated event as well.
Imports System.Data
Imports System.Data.SqlClient
Imports System.Data.Common
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I am trying to get my grid to refresh automatically when the underlying data is updated in the database. Isn't this supposed to work? Or am I missing something? I created a DataTable within my DataSet. Then I created a new form and added a DataGridView (actually I'm using DevExpress' XtraGrid but am trying to get it to work with just the Microsoft controls). I use the menu in the upper left of the grid to set the grid datasource to the datatable in the project data source. This then automatically adds the dataset, BindingSource, and TableAdapter to the form.
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I have the following:
a table of addresses and a bindingsource for the table
a enum list of address type: 0 = "Mailing", 1 = "Physical", 2 = "Shipping" etc...
I would like to bind the datasource of the combobox to the enum so it displays "Mailing", "Physical" etc. Then I would like to change the bindingsource position of the address table based on the user selection of the combobox.
Here is what I have so far:
cbxAddressName.DataSource = New BindingSource(ApplicationEnums.GetEnumList(GetType(ApplicationEnums.CompanyAddressType)), Nothing)
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I have looking for a tutorial or class that demonstrates more than a trivial example of saving a windows position on closing. The ones I have found don't seem to work on all systems because of:
1. Multiple monitors. (and resolution between those monitors)
2. Toolbar size and position (toolbar is only on the primary monitor, well sometimes)
3. Sometimes the programs dont open on the right monitor they were closed on.
Is there an extensive class or tutorial on all the stuff a programmer needs to get right to have a window size and position persisted between executions?
If TextBox1.Text has atleast one number 0 or 1 or 2 or 0 (it may have text too, with numbers) then End If Also what command is it to get window position coordinates and what winpos[x] and winpos[y] are. All I found was setwindowpos
View 2 RepliesI also have a function that returns ALL tiles on the map and they're X, Y position. How could I find out which one is closest to the position I specify? I can't figure out how to go about it. how to implement it with this. Heres a MADE UP example if what I'm trying to do:
Dim MyPosition as New Position()
MyPosition.X = 400
MyPosition.Y = 400
Dim tList as New List(Of Tile) = MyMap.GetTiles
Now, I can already do the stuff above, but what I need to make is something like this:
tList.GetTileClosestToPosition(MyPosition)
I am currently working on a VB.Net program where there are two parallel multiline text boxes like this.
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I would like that when one text box is scrolled, the other is scrolled as well. I was wondering if there was a Scroll event that could trigger the change the position of the scroll bar of the two text boxes.
even Word Pad, when you scroll your Caret (the I-beam for browsing through text) through the text, in the font combobox, the font of the text you are browsing through will be displayed, and when you scroll your caret through a different font, the font will be changed. If you're confused, look at attatched picture.
I cannot seem to find a caret position changed event on the normal richtextbox control - and if anyone can show me a custom component with this it would help me a huge amount.So my basic question is how can i replicate the formentioned function in my own VB.NET program.No code is necessary just constructive suggestions, or links to other projects would be welcome. You don't need to quote the forum rules
I have two forms: Main and Options.Main can be moved around the screen (like a normal window).When the user clicks a button, the Options form opens up and the Main form HIDES.How do I set the Options form to open in the exact place that the Main form was last on the screen (to give it the effect the MAIN form never went into hidding)I was thinking to set Option form's StartPosition to Main's current position, but I don't know the syntax for that or if it's even something you can do.
View 4 RepliesThe below code is giving error "There is no row at position -1" when I click the mark completed button. The database field is being updated with the current date and time before it errors.[code]
View 2 Repliesi've been creating a program in VB that connects to a Microsoft database, and up until now, the program has been displaying the information fine. however, all i get now is the error message "No row at position 0" whenever it tries to display almost anything.
I am baffled as i have 3 forms that work and are programmed exactly the same way and only 1 works fine :/
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I seem to have a problem with the following the follow code is in a click event of a new button:
sqlBindingSource.AddNew()
the follow code is in a click event of a delete button:
Try
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[code] Why doesn't the Patching Code work? (It doesn't move "fs" to the right position) [code] The code is suppose to use a FileStream to write bytes to another file. The part where it's suppose to write bytes works fine, but the part where it moves the FileStreams position isn't.
View 6 RepliesWhat i need is when i click a button it will msgbox the position of the vscrollbar.
View 4 Repliesim using this code to get window's Postions
Imports System.Runtime.InteropServices
Public Class Form1
<StructLayout(LayoutKind.Sequential)> _
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it works perfect on anything i have tried but now im trying to get a system window more specific the properties window i tried Winspect to get the window ID i tried everything listed in it and nothing worked anyone got some idea's why ? or any other way i can get the window postion
in my form, I have a DataGridView and TreeView apart from other controls. Now, the data shown in the DataGridView is also displayed in the TreeView. What I need doing is that when a node in the TreeView is selected, the corresponding row in the DataGridView needs getting selected for further action.I used some logic to determine the DataGridView row. But, I am unable to select the row. When I use the DataGridView.Row(index).Selected function, the row is selected, however, the row index does not change.
View 2 RepliesWas wondering how i can go about getting the current video dimensions (height and width) and also how can i set the media position?
View 3 RepliesI am currently using psexec.exe from PsTools to send a command to a remote system to fire a command through a command prompt however I am finding that the shell I am doing does not seem to like the spaces in the path.
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Lets say I have a label with the text "_ _ _ _ _ ", some underscores. Now what if I want the program to locate the 3rd underscore and replace with something else. Is this possible? I was guessing by getting the character's position first and somehow there is a function that replaces characters by their position.
View 11 RepliesHow would I get the current mouse position?
View 2 RepliesIn your opinion what API use Spy++ to get the "Rectangle" and "Restored Rect" data of a child control of an external window?I don't think it uses GetWindowPlacement because if I use this API for the main window I obtain the same values of Spy++, but if I use the GetWindowPlacement API to find the position of a control of the window itself, known it Hwnd, I obtain different results as to Spy++ (that are ALWAYS the same results also if I shift the Main window... so I think that are relative data and not absolute data... but they are wrong )
One example:
Spy++ : (620, 473)-(792, 505)
GetWindowPlacement: (615, 450)-(787, 482)
same dimensions... but different pos... and the right pos is the Spy++ pos.
I want to find the cursor position when the cursor is over a WebBrowser. The WebBrowser does not contain mousemove command - 'panel' does.I thought I could put the WebBrowser on top of the Panel - but it doesn't work. how I can get the mouse location when it is over a WebBrowser?
View 2 RepliesI am trying to find the position in a string of a perticular letter of the alphabet (Q), I have found a method to determine if the letter exsists in the string, but not it's position.
View 21 RepliesI am trying to set a form position before it shows but i cant get it working.Form Name: ColorCentraling.vb
I've tried: Private Sub ClickNPC_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ClickNPC.Tick
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are 2 integers which represent a number which does not need to be explained.There i've made a DIM as the form but new! I've tried settings its location but its not possible for me.I know this is possible because: I've visited many VB.NET 2008 Programs that do this
