Update problem : When i check DataSet.HasChanges() it return false, unless position change (move next or previews) it return True.
After position changes every things is OK and updated!!
this is the
PHP
Private MyAdapter As New OleDbDataAdapter
Private MyDataSet As DataSet
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I tied a text box to dataset using the following code
tbAddr.DataBindings.Add("Text", dsCust, "SYS_CUSTOMER.Address");
gridview to same dataset using
dgvNames.DataSource = customerBindingSource - this is in property box.
customerBindingSource.DataSource = dsCust.Tables["SYS_CUSTOMER"];
i make changes in text box tbAddr update_click () in this method i use the following code
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I have code running in the Datatable.ColumnChanging event in my dataset. This dataset underlies a form and conventional drag/drop controls are in place for data entry.when the event triggers and runs, I am running code in the form that checks the dataset.HasChanges property. It is showing False. But this is immediately after the ColumnChanging event has been triggered.Okay, I see by others posts and MSDN that .HasChanges will only be true after moving off the row with the changed column. I have also noted lots of discussion about the advanced binding property of DataSourceUpdate Mode, but that does not address this issue.I guess I can do this by checking the state of the row for the binding source. Just seems odd that the event behind the dataset can be triggered and that does not change the dataset.HasChanges property.
View 3 RepliesWhen you edit a cell in a datagrid, how can you "commit" that change if you are still in that current cell? Right now, the DataSet.HasChanges property isn't true UNTIL you leave the current cell. If you don't click on another row, then the property is not true yet. How can I tell it that it is true without physically clicking on another cell?
View 4 RepliesI would like to get message, or true result when DataSet get new record (new row). But, I always get message as "no". [code] Button3 should return "Yes" as new record has been added, but does not? [code]
View 2 RepliesI have a HTTP class that gets content from URL's, POST's content to URL's etc and then returns the raw HTML content.In the function inside of the class it detects if there is a HTTP error and if so I would like to return false but will this work if I have declared the function to return a String?
Code Sample of what I am trying to do (Note the Return Content & Return False if a HTTP error code is detected)Public Function Get_URL(ByVal URL As String) As String
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I'm making a Visual Basic GUI application to display whether a number of my ports are open for people to know whether things like my website and my Minecraft server are open.My problem is I have absolutely no idea how to do this in Visual Basic.Basically, I'm asking for something which sends a signal to an IP with a specific port, if it is open then return true, if it's closed, return false. Similar to: http:[url]....
View 1 RepliesI use this code to start VLC player:
vlc = Process.Start("C:Program Files (x86)VideoLANVLCvlc.exe", "--fullscreen """ + bestand + "")
IT just start's correctly, only 1 problem. Sometimes it starts on my second monitor. I need it to alway's start on my main monitor. How can i change the position of VLC?
In VB.NET on a boolean function if you run an Exit Function line will it return false?
View 4 RepliesSub pageload() Handles Me.Load
Dim bom As New List(Of Car)
Dim car1 As New Car With {.Name = "Pea", .Year = 2}[cod
WHY??? I mean the object has the exactly same data, so why does itee]..... say it is not contained?
I'm trying to find a device but the function return always error code &h57 that means, I hope, Incorrect parameter. My code is:
Imports System
Imports System.ComponentModel
Imports System.Collections
Imports System.Windows.Forms
Imports System.Data
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It just return false no exception. Nothing.
Declare Function InternetGetCookieEx Lib "wininet.dll" Alias "InternetGetCookieExA" (ByVal pchURL As String, ByVal pchCookieName As String, ByVal pchCookieData As System.Text.StringBuilder, ByRef pcchCookieData As System.UInt32, ByRef dwFlags As System.UInt32, ByVal lpReserved As Integer) As Boolean
Public Function GetUriCookieContainer(Optional ByVal uri As String = "") As String
Dim result As Boolean
Dim cookiedatasb As System.Text.StringBuilder
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how to return TRUE or FALSE value in checkedlistbox in a Button click.
For lngCtr = 0 To checkedlistbox .Items.Count - 1
strText = strText & ", " & ........................? Next lngCtr
I Expecting result is . When will click the command button.. that time display
one message window, then show result : TRUE,FALSE,TRUE,TRUE
Im putting in an image in a specific column.
EX
[Column1] [More Columns]
Image |
Im trying to make it so if the user moves column1 it will not work. But still allow the user to change the order of the other columns.
In my application, I have a dataset, automatically created by the VB, called "Batabase1Dataset".This dataset, will "connect" to the file Database1. sdf in the directory of my solution..Is some moment of the program, I need the dataset will read the data from the file "c;estdatabase1.sdf", instead the file: "....MyAppdatabase1.sdf"..How can I change the path of the dataset reading?
View 3 RepliesI have a dataset that I created through the wizard, to pull the data and their types from the database tables and prevent some of the headaches of creating the tables and data types individually.I am looking for where the database connection for the dataset is defined at so I can change this. The reason being is I have added a database connection dialog where the user will select the location of the database server and I am wanting to pass the connection string from what the user selects to the dataset so the dataset uses this as its connection string instead of the default one I defined in the wizard.Where is this defined at so I can change it?
View 6 Repliesin school im making a dodge ball game but i cannot get the ball to return to its original position. My code and form are below
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How can change TextBox ForeColor When that is Enabaled = False?
View 17 RepliesFor some reason, I can't change the checkbox from True to False when I click the checkbox in my DataGridViewCheckBoxColumn called "Select". I setup my DataGridView (dgvWBFOrphans) with 5 TextBox columns that are Read-Only and 1 CheckBox column that is not Read-Only. I use a stored procedure and data reader to load the DataTable which is used as the DataSource for dgvWBFOrphans. I want all the checkboxes to default to True and allow the users to uncheck certain rows in the "Select" column.
Dim dtOrphans As New DataTable
Using cnn As New SqlClient.SqlConnection(clsDBConn.clsDBConnections.prpConnString)
cnn.Open()
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I would like to make a applcation that after checkbox inside datagridview is checked. After calcuation stuff, if result less than standard, then it set the checkbox to not checked state. But I find that checkbox in datagridview does not change. It changed after I click other checkbox. What I want is lagging one cycle. I tried dgv.refresh() or update event , no effect.
View 2 RepliesI am stumped on this one. I have a panel (pnlKeyPad) that won't change the visible property when I try to set it to True. But when I try to set the Dock Property to DockStyle.Fill it succeeds. I have tried them in different orders, setting the parent property to the splitpanel and nothing seems to fix it. The panel is on a splitpanel that is visible. The panel is set to visible = false by default.
Any ideas of why this panel won't switch to visible when I specifically set it to visible?[code]...
I use this code to return records in a DataGridView:
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I want to return the top 5 records of a table in a dataset for datagrid view. The following does not work.
DataGridView.DataSource = DS.Tables("TABLENAME").Select("SELECT TOP 5")
im trying to get a selected time and my dataset doesn't return the selections what am i doing wrong in this statement
dim startindex as integer= 0
dim endindex as integer= 0
for each regel as datarow in my dataset.tables("Bookingen").rows
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I'm trying to write a function that will return a dataset and an integer, is this possible?
View 1 RepliesI have created an Unbound DataGridView. It has has 4 Columns Name, Last Name, Picture, CheckBox. I would like to do change the checkbox's enabled state true or false (editable or not) at the time I add the row
Not its checked state :) and would also like to change image that is placed in the Image column cell during the add row.
I use the Select method on my typed dataset to return an Array of DataRows.' get settings for the DataGridView from the dataset and be sure to sort the returned rows by the display index
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Is there a way to test if any of the DataRows in the Array have changes? I already know about DataSet.HasChanges method, but in my procedure I want to run some code on the DataRow() Array only if one of the rows have changes. In my example below I get a subset of DataRows from my DataSet. If only one DataRow in the DataSet has been modified my For Each...Loop will run 10 times.
For i As Integer = 0 To 10 ' get settings for the DataGridView from the dataset and be sure to sort the returned rows by the display index
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if rows where added to or deleted from the dataset then the DisplayIndexes need to be reassigned
If Me.ds.HasChanges Then
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I only want it to run 1 time. For example,
For i As Integer = 0 To 10 ' get settings for the DataGridView from the dataset and be sure to sort the returned rows by the display index
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I'm having trouble using the HasChanges method.I'm trying to get a message box to show if a user hits the edit button, makes a change, then hits the close button without hitting the save button first. From what I understand, the HasChanges(DataRowState.Modified) statement should work.In reality, when I hit the edit button, make a change to a field (zip for example), then hit the close, it just closes without showing the messagebox.Here's my code so far...
Private Sub CustomerForm_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) _
Handles Me.FormClosing
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i have a dataset that i am viewing in detail view i can enter a new record and save it fine but the auto ID field enters as (-1) after i save it does not automatically change the (-1) to a number so i need to clear the dataset then refill it to give it a genuine number to prevent concurrency violations. my problem is after i refill the dataset it returns to the first record in the dataset not the last entered record, how do i get it to return to the last record.
View 4 RepliesI am trying to call a SELECT query (with parameters) in Access from VB.Net 2008. I am able to call queries without parameters using the code below. The problems are (1) how to apply the parameters to procName and (2) how to get a dataset returned. I have looked around the net for hours and have found some examples. However, they are all for ms access action (update, delete, etc) queries using ExecuteNonQuery which does not return a dataset.
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