When 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 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 RepliesI 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
[Code]...
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
[Code]....
When i use my UserControl in a project my Mouse Enter & Leave events aren't firing, i assume i fix this with a raiseevents in my usercontrol. However when i try to do this it says something about "cannot raise base event from derived class".
View 7 RepliesI 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
[CODE]................
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
[CODE]...................
if rows where added to or deleted from the dataset then the DisplayIndexes need to be reassigned
If Me.ds.HasChanges Then
[CODE]........
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
[CODE]............
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
[code].....
I 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'm learning VB2008 using the Express edition IDE, and would like to start using the Mercurial SCM. I have a couple of questions:
1. Should I use a single repository for all my tiny projects under C:\VB.Net\, or should I create a repository into each project [code] If using only a single repository, will Mercurial filter changes so I can see only files belonging to a given project?
2. What files/directories can I leave out of Mercury? For instance, here's what VB2008 Express created for a single-form project: [code]
3. Is it possible to avoid the empty \WindowsApplication1\ at the root of a project, so that I don't have to cd into it to find the first actual file (WindowsApplication1.sln)?
Is there a way to leave a control in code without explicitly going to the next control? For example, I want to[code]...
View 5 RepliesI want to know how can I leave a space between two columns, so that the entry into the second column start in a given position.
This my code see it:
CODE:
It's usually happend that I have some arrays with same length. For example name(), surname(), age() Is it the best way to leave all info in 3 arrays or it possible ( better ) to concatenate somehow?
View 5 RepliesAll about datagridview,i entry the data from textbox to dtgridview the format is DATE normally ,if the textbox have a date that dtgridview can accept but when i leave blank and add to dtgridview..the message error""could'not store<> field".
My question is it possible make conversion from date to string??What code to put at the textbox or in cell_formating??what i try is..
if dgv.row(e.rowIndex).cell("dateRec").value="" then
e.value=""
e.formattedapplied=true
end if
[code].....
View 1 RepliesI have an old app still written in VB2003 that required some changes, part of that was revamping a menu that isn't behaving.I've deleted it and it doesn't show in the designer but when I start the program there it is, and still not correct.How do I really get rid of it so I can build another one?I'd hate to have to delete the whole MainMenu, this is the 5th in line, that would be a lot of re-creating.
View 8 RepliesI have a xml like this:
<?xml version="1.0" encoding="utf-8"?>
<xs:PersonaRCV xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:Identificacion>201232934</xs:Identificacion>
[code]....
and i called it in my aspx like this:
<pre><asp:Label ID="LBXML" runat="server"><%# Server.HtmlEncode(FormatXml(Eval("Respuesta")))%></asp:Label></pre>
Finally the code seen with Firebug looks like this:
<xs:PersonaRCV xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:Identificacion>401690010</xs:Identificacion>
<xs:Nombre>MAX FRANCISCO</xs:Nombre>
I was trying to do something with jquery replace:
var queHay = $("#MostrarEsconder" + myVal + " span").html();
queHay.replace('/<xs:/', '');
but i can't get it to work.Anyone can suggest something to get my results as i want them? with jquery or in codebehind in my FormatXML function!
I have a string variable that contains the following html data:
<p>
<em><strong>This is some <span style="background-color: rgb(255, 255, 0);">rich </span>text. 3 < 5 is a valid statement. <br />
[code].....
I want to create application leave, but i don't know how to start it first.
View 2 RepliesI'm programming something and I have it set to where if you leave the text box blank then a message box comes up and tells you to enter a value to move on to the next text box [code]Now whats currently happening is if I click the exit button and leave the name text box blank the error i programmed will come up and tell me to enter a name. I want to be able to click the exit button while no text is entered in the name text box bypassing the error message.
View 5 RepliesVS 2010 How to Handle Multiple MouseHover/Leave?
View 34 RepliesI 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/
View 1 RepliesI 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.
way to "reset" a tooltip, so you don't have to leave and re-enter a control to make it pop? I have a form that is pretty much entirely taken up by one control. I want to have its ToolTip text change based on which region of the control is being hovered over (which I can do now). I just have to leave the control and re-enter it to make it pop. I'd like to have the Tooltip pop, then if I move the mouse to a different location (still inside the control's bounds) have it pop-able again in the new spot.
View 5 RepliesI am working on a new assignment. Our instructor wants us to code a shared leave event for three textboxes (txtBox1, txtBox2, txtBox3).I understand how to code the shared event and how to make a generic tbox for it:
Private Sub txtDescription_Leave(ByVal sender As Object, ByVal e As System.EventArgs) Handles txtBox1.Leave, txtBox2.Leave, txtBox3.Leave
'generic textbox
Dim txtText As TextBox
txtText = CType(sender, TextBox)
We are told that if the generic textbox contains data and the data has been modified (against the database record), we need to : Determine the name (name property) of the textbox that casued the evend and Determine the value (text property) of that textbox.I know to check to see if anything is in the generic box by the length property, and if it is modified by the modified method, but how do you determine the name and value? Is it a case statement?
I have some validation set on my combobox and it works as it should, but the problem I have is that the user is unable to click on the exit button, or click on the X to close the form until they have entered a valid field - would it be possible to exclude these controls from the validation? So the user can click on exit, or click on the X?
My coding is:
Private Sub Combobox1_Leave(sender As Object, e As System.EventArgs) Handles Combobox1.Leave
If Not Combobox1.Items.Contains(Combobox1.Text) Then
[CODE]...
when i leave the tab and move to another tab and return to last tab
this message show to me
http:[url].....
I want to add a new rows when cell leave event occurs.It shows error like Operation can not be performed in this event handler...
here is my code,
If PatientDataGridView.CurrentCell.ColumnIndex = 2 Then
PatientDataGridView.Rows.Add()
End If
I'm creating an app where I don't want to allow the cursor to leave the form, even when the mouse moves.Would it be something to type into pongMain_MouseLeave ? Something like Cursor.Stop () is all I
View 2 RepliesI want to change the language when i enter or leave text box
View 2 RepliesI have a project due tonight and suddenly 2 of my datagridviews are acting funky while the others are fine.
I have 2 tables in an sqlce db. the first is books(id, title, copyright) and the next is publisher(id, name, bookid). I'm writing a vb.net frontend to access the data.
I have data bound datagridviews for both tables. Both have their respective ID columns hidden. The publisher dgv uses a combobox cell style to display the book title in the bookid column. So far so good.
I have suddenly run into a problem where if I have clicked in a cell on the books dgv and then click a cell on another row, the title changes to the id value. The publisher dgv also updates to show the id instead of the title.
It sounds to me like there may be a problem with the booktableadapter or bookbindingsource, but I don't know where to start looking for it. I have a 3rd dgv referencing an unrelated table, and it has no problems. The code for both the working and problematic dgvs are the same (only the control names are different).