I have a datagridview which is populated from the SelectionChangeCommitted event of the combobox. The datagridview contains both bound and unbound data columns (see below).
View 1 RepliesI use the following code in a Sub called "updateDb" to accept changes back to the Db, etc. in the .CellEndEdit event from a DataGridView:
Try
' Write changes back to actual .mdb file
' Accept changes from DataGridView object
Me.Validate()
[code]....
Which is the most appropriate event to handle for this task? Right now I'm calling the updatedDb sub when the .CellEndEdit event triggers and when the .UserAddedRows event triggers.
I have a custom class. I would like to add an event that triggers when the form it is on resizes. Is there a way to do this?
View 1 RepliesI am using an activeX control to read data from an external source. This data is processed in 5 second increments. Each piece of data is passed through an event. When the event triggers I call a "decision" procedure from the event to process the data and make decisions on what to do, i.e. call other procedures, store the data, etc... This works fine when I have a small number of samples (around 10), however, when the number of samples increases to say 100, that is I am recieving 100 pieces of data every 5 seconds, the "decision" procedure does not fully run. Is it possible that the event trigger is causing the code to exit the "decision" procedure prematurely? I know that the "Decision" procedure starts since I have written data from the beginning of the procedure but not the end of it. how to handle the rapid event triggers?
View 7 RepliesAnyone know how to make the return key used in a text box trigger an event?
View 3 Replies[code]I get an error that the connection to the IMAP server has disconnected because the suspend event is not triggered until the computer wakes. How do I get the trigger before the computer sleeps?
View 2 RepliesI have a message box with YesNoCancel button..
Pressing Yes will do some action and close the app - works fine,
Pressing No will do nothing and close the app - (see below),
Pressing Cancel will Do nothing and keep the app open - (see below).
I'm using DialogResult.No for No button and DialogResult.Cancel for cancel button. But pressing either of them triggers DialogResult.Cancel event. Whats the problem?
I'm working on a program with a fairly complex graphical interface. Due to the volume of information possible in the interface, the tooltip, or something like it, seems likely to be a fairly critical means of obtaining feedback. However, after a bit of testing, there are a few features that I am not really enamored with. First, I am changing the tooltip text dynamically based on the portion of a control that the mouse hovers over. This is done in the Hover event handler. What I am seeing is that once the hover event is raised once for a control, it appears not to be raised for that control again unless the mouse leaves the control and re-enters. Therefore, the tooltip is set based on where the mouse hovers the first time it hovers on the control, then doesn't change until the mouse has left the control.
More disturbingly, the tooltip sometimes doesn't show up at all. It appears that if I am quick enough about moving the mouse over the control, then hovering does nothing and no tooltip shows up at all. The way to get the tooltip to show up is to move the mouse smoothly, and somewhat slowly, over the control, then pause. As long as the motion is slow enough, the tooltip always shows up. However, if the mouse is then moved, the tooltip goes away, and won't return until the mouse has left the control and come back to it. So basically, First, I will look into showing something on MouseMove rather than Hover, as Hover appears to be inconsistent, at best. Yet that doesn't solve the problem that the tooltip is too inconsistent in behavior. Is there an alternative, or timing property settings for the tooltip that improves responsiveness?
I am writing a web page, on this web page there is a txtStart and txtEnd. Next to them I have Calendar ImageButtons. I would like to code it so when the ImageButton is clicked a calendar popup appears and when they select a date on the popup it goes away and the date is populated into the txt. Format MM/DD/YYYY. Can anyone help me? I have been looking online for hours now and only find solutions for C# users or for a seperate page all together. I am writing my code in VB and I cannot make new pages. Here is my web page code:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="PSInventoryRelease.aspx.vb" Inherits="DigeControlCenter.PSInventoryRelease" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="TC" %>
[code]....
I've been searching for the answer for this all over, but I can't seem to find the solution. I have no idea how do this. A code that triggers an event after multiple command buttons are pressed in a certain order. For example: I press Command1, then Command2, then Command8, then Command5, then an event happens. It's kind of similar to entering a code to activate something.
View 4 RepliesI have a form with a datagridview on it. I would like to use the same grid with two different datasources (not at the same time). If I call the form this datagridview is on with one routine, I want the source to be a list (of Class). If I call it from another routine, I want the source to be a dataview. The problem is once I set the datasource the first time, it keeps that same source even when I try to change it. I'm using this code in the form with the grid:
[Code]...
I can pick either one of these and they work, It just doesn't change if I run it again with the other one.
Asset Database, with DataGridView that is populated with desktop and laptop PC's by 'Office' and 'PC Type' (Combos). You can double-click a row to open an editing screen to edit the PC details eg: assigned user, purchase date, serial number and so on. The problem
[Code]...
I have a datagridview comboboxcolumn populated with jobs. these jobs have a wage attached to them. for example job "Policeman" has a wage of R20.I have 5 checkboxcolumns for each day of the week as well. so if I check 3 of the checkboxes and have the job "Policeman" selected, I must then calculate the weekly wage (3*20=60) and display the wage in the weekly wage column. which event is best to handle this.
View 2 Repliesvb.net
Private Sub DataGridView1_CellValueChanged _
(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) _
Handles DataGridView1.CellValueChanged
[code]....
I have a datagridview bound to an Access datatable. It is nothing more than a one column list of chemicals. To allow the user to more easily navigate the list, if they press a letter it will jump to the first chemical alphabetically of that letter. If they keep tapping that same letter it will move down that list one by one. This all works fine. The problem is if you hold down the letter it will progress down the list but it doesn't show that progression. I want it to function much like if you hold down the down arrow key in a datable you'll see each successive cell be selected as it goes down the column.
[Code]...
I'm facing a strange problem in my dgv, I have the dgv bounded to a datatable, now I had to add a new column to let the user checks the rows that he/she want to export to a text file. I had the checkbox column, but when I run the application I can't check any row, I try to add in the click event of the dgv to manually check the column but it still not works...
My
VB
da.SelectCommand = com_pfda.Fill(ds, "table_1")dgv_dados_obra.DataSource = ds.Tables("table_1")
Dim dgvColunaCheck As New DataGridViewCheckBoxColumnWith dgvColunaCheck
[Code] .....
The code in the click event, because the normal click in the checkbox doesn't worked:
VB If e.ColumnIndex = 7 Then
If dgv_dados_obra.Item(7, e.RowIndex).Value = 0 Then
dgv_dados_obra.Item(7, e.RowIndex).Selected = True
[Code] .....
I don't know why this doesn't work...
how can I capture the event, if the user f.e. changes from ie to ms word?
View 3 RepliesI am trying to execute the following line of code within the DoWork event of a BackgroundWorker object: [code]
View 1 Repliesi am trying to create an application like a media player....Say i got an option which changes the background image of the form,like skin or something!now i want to change the mouse events when that background image is active on the form... lemme give u an example of a code...
Private Sub FireToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles FireToolStripMenuItem.Click
Me.BackgroundImage = My.Resources.Fire
TrackBar1.BackColor = Color.Yellow
End Sub
Visual Studio Version 9.0.30729.1 SP
.NET Version 3.5 SP1
I have a button click handler that is coded. I typed in a new line of code without any errors, but the new line of code does not execute. To troubleshoot, I tried to add a simple message box, commented out the code, and deleted the entire code. With everything I try, even deleting the code, the original code exectutes at run time. I can't find any other instance of the code anywhere else in the application. Other events update normally.
I gather the code is either not updated upon build/compile, or this bit of code is stored somewhere.
I'm using this code:
Dim cListItems As New System.Collections.Generic.List(Of Combobox_values)
cListItems.Add(New Combobox_values("One", "1"))
cListItems.Add(New Combobox_values("Two", "2"))
[code].....
To get the row index of DataGrid when change(asp:radiobuttonlist) occur in row of the TemplateColumn
<asp:DataGrid ID="dgTier2" runat="server" AutoGenerateColumns="False" Width="578px"
Height="83px" OnItemDataBound="dgTier2_ItemDataBound">
<asp:BoundColumn DataField="TypeID" HeaderText="TypeID">
</asp:BoundColumn>
[code]....
After changing the rediobutton selection to get the Rowindex of the changed row.if at all change happens in many rows i need make the collection of the Rowindexs.
I have a custom control that includes a DataGridView control. I would like to be able to adjust the heights of the rows on the dgv to fill the custom control on the target form whenever the custom control is resized. I am able to adjust the width of the various columns so that the dgv fills the custom control, but I have not been able to adjust the row heights in a similar way. I have tried the following code in the resize event of the custom control
for i = 0 to dgv.columns.count -1
dgv.columns(i).width = newwidth
next i
[Code]....
This doesn't cause an error, but the code does not change the row height. The column width change works fine.
I am able to change the row height by changing the font size at custom control compile time. I have not tried to change the font size at runtime, since this would not achieve what I am trying to accomplish.
I suspect that my problem is that I have not set one or more of the autoresize flags properly, but I have tried all the combinations I can think of.
My employers have to enter data into two columns and they want the enter key to go one column to the right and then when they press it again to go to the next row in the first column. Is this possible?
View 7 RepliesIn my datagridview, I want to be able to change the value of comboBox1 depending on what the user selects in comboBox2 I had this working correctly, however if I move onto a new line in my gridview and select a different value in the second row it changes the previous row also.In the below code the correct values are generated in the combo boxs, however when I move onto a new line in my datagridview and choose a different value from my comboBox I get this error:
"The Following exception occurred in the DataGridView System.ArgumentException: DataGridViewComboBoxCell value is not valid To replace this default dialog please handle the DataError event."
Private Sub Expenses_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Me.TblCompanyTypeTableAdapter1.Fill(Me.Exp_testDataSet10.tblCompanyType)
[code]....
I am currently reading a table from Access database and displaying it a DataGridView. Here is my
Dim ConnString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source= ....db1.mdb"
Dim SQLString As String = "SELECT Cost, Average, FROM expense_summary"
[Code]....
All the files in my access data base are numeric (database cannot be changed) but I need to change the value formats in the table. I want to convert one particular cell in the table to a percent with one decimal and also display the '%' symbol. Similarly, I want to round and display a '$' symbol in another cell. How would I do that? How would I select a specific cell in this table to change?
Im using vb2010 express. I have a datagridview in my form. All my cells in the datagridview has a "sunken" cellborder. When mouse is over a cell, i want to change the cell border of that cell to "raised". I tried lots of thing, but i havent suceeded to change just "one" cell's border.
View 3 RepliesI have a datagridview with the datasource property set to a datatable (via dataAdapter -> dataset) now within this dataview I have columns I want to change a select few of the cell types to a combobox and datetimepicker when the user ADDS new data (They cannot EDIT existing rows). I know I could manually setup each columns (see below) datasource and its type.
Dim ComboBoxColumn1 As New DataGridViewComboBoxColumn
With ComboBoxColumn1
.HeaderText = "ITEM #"
.DataPropertyName = "item_id"
[Code]...
I have a subroutine for changing the datagridview's columns' colors on form load.Now, everytime the user change a cell's value, the cell's backcolor is changed.If the user click 'save' the program will call the subroutine for changing color.I got everything working except the part that it will return to the color on load after save. I think I should refresh my datagridview but I don't know how to do this.
View 2 RepliesHow do you change the row height of a datagridview in the designer.I can change the header row height or the font size but the height of each data row stays the same. Does this have to be done from within the VB code?
View 6 Replies