I want to Refresh DataGridView according to any condition (e.g. I changed the color of letters in cellls). This condition is set by another form (it closes when the condition is set). How can I do it?
View 11 RepliesI have a for loop condition as below coding for looping to change word on label.text, but as a result, it just only display the last value.
how can I do to display each value for a looping.
i want the result is the label1.text to show 1 then 2, then 3, then 4.......finally is 10.
for i as integer = 0 to 10
label1.text = i
next
I'm noticing that sometimes strings drawn in a given column or row will be slightly over-antialiased or altogether clipped after scrolling horizontally or vertically.I can see that the quick way to clear this up is to send a final .Refresh() call to the DataGridView after completing the scroll. But, unlike the ReSize event for Forms, there doesn't seem to be a Begin and End Scroll event for controls, so I can't just send a .Refresh() to the DataGridView after scrolling.Does anyone have an idea how I might go about detecting when a scroll event has completed so I can send that final .Refresh() to the DataGridView?
View 5 Replieshow can i put datagridview checkbx condition
i have a datagridview and datagridviw culumn(0) is checkbox
if datagridview culumn(checkbox) is true then code working and the datagridview culumn(checkbox)= false then msgox show("first select any one row")
give me a code without using currentcell(0) and selectedcell(0)
because in this datagrigview to many rows thats why i can't use currentcell or selectedcell or selected row
Example
ID NAME AMOUNT
1 a 30
2 b 40
3 c 50
hight light red color of row if amount>=40 How to do that>?
I want to use conditional cell format. That condition is when A and B cell is equal than B cell font color will be gray. I write a code in datagridview cellformation
If Me.CMDgvName.Columns(e.ColumnIndex).Name = "drPublisherWeb" Then
If e.Value.ToString.Trim.ToUpper = CMDgvName.Rows(e.RowIndex).Cells("drPublisher").Value.ToString.Trim.ToUpper Then
[Code]....
i can't write the code for only cell font color will be gray.
i have 5 columns in a datagridview
when i enter 0 and press enter in the 1st column then i want focus(select) to the 4th cell of that row otherwise i want to focus the next cell.
i want to use the values inside my datagridview colume. what i want to do is this, i have a date column, and i time column. so i want to check if the date is today and if the time is now, then send a message!
Private Sub Timer1_Tick(sender As System.Object, e As System.EventArgs) Handles Timer1.Tick
Me.Label1.Text = TimeOfDay
[code]...
ReminderTblDataGridView is the name of my datagridview/i am using i to loop?i am using a to collect the date from the datagridview and compare with now me.label1 to check if the content in the time column is now?
i want to use the values inside my datagridview colume. what i want to do is this, i have a date column, and i time column. so i want to check if the date is today and if the time is now, then send a message!
[Code]....
I'm working with a DataGridView that I want to format based on the condition of whether or not a date has passed. For example: If the date in a cell is past the current date, that cell and its row are formatted with the forecolor red. My current code is below, and while it doesn't present me with any errors, it just plain doesn't do anything.
Private Sub dataGridView1_CellFormatting(ByVal sender As Object, ByVal e As DataGridViewCellFormattingEventArgs) Handles DataGridView1.CellFormatting
If Me.DataGridView1.Columns(e.ColumnIndex).Name = "Due Date" Then
[Code].....
i have datagridview with rows in it and one of the col show type of product. there are row with same type. on click of button i want to select all the row where productype = 1 (for example)
do i have to go thru each row in grid and check the condition for product type and then select it or there is another quick method.
i have my code as below in which i need to check the column(3) and column(4) for a condition and based on it i need to change color of the text and add some text to the value. Kindly guide for the same...
Dim sDs As DataSet
Dim sTable As DataTable
Dim sBuilder As SqlCommandBuilder
[Code].....
I am trying to do a blinking cell with red and yellow text in my data grid view. The cell may blink when certain condition meet.May I know how should I write the VB script in VB2008?
View 3 RepliesI have a problem refreshing a DataGridView control after Insert or Update. The source code: Get all rows from table in datatable and set to the datasource:
[Code]...
When i finish inserting/updating the datagridview doesn't refreshing..[code]
View 1 RepliesI tried this, but all of my rows dissapeared. [URL]
vb
Private Sub BindingNavigatorDeleteItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles BindingNavigatorDeleteItem.Click
If MsgBox("Are you sure you want to delete selected record(s)?",
[code]....
i am editing the data of access database through datagridview.after adding data the data that i have edited dat is not being edited in datagridview.
how to refresh datagridview so dat the edited data can b shown without reopening the form.
I use this line of
If MADS.Tables(0).Rows(1).Item(13).value >= 0 Then The value of item 13 is negative and it�s a double. Still the code in the condition is executed?
Private Sub DataGridView1_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellClick
If e.ColumnIndex <> 3 Then
Exit Sub
[code]....
I am using the CellClick event to update DB column PaidStatus from Paid to Un-Paid and vice-versa....Once updated i want the updated data to be reflected..i am using DataGridView1.Refresh()....but it does not show the updated data from the DB..i have to close the application and re launch it to see the changes.
I created two tables(FIRSTtable and SECONDtable) in the mysql database and two tables that are related.[code]...
Relations between the two tables using the product_id column with UpdateCascade and DeleteCascade. Both relationships are functioning normally when I try with the sql script. Suppose I delete all product_id in the FIRST table, all existing data in the SECOND table will be deleted.
Both of these tables displayed in datagridview. When I delete all the data in the FIRST table, the all rows in datagridview FIRST table will be deleted, also the data in mysql the FIRST table will be deleted.
I try to open the mysql database, the data are in SECOND Table also deleted, the problem why the view that in the second datagridview, can not be deleted, still keep the previous data? How to refresh datagridview binding in vb.net or C#? [code]...
i use a button to execute the update command for editing the row of the sql table. The row is update when i click the button, but the datagridview is not show the update of that row automatically, so i want to know how to refresh the datagridview when the table is update by just clicking a button.Here is the code below i use for editing the row :
Private Sub editbtn_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles editbtn.Click
If serialnotxt.Text = "" Then
MsgBox("please enter the enter serial no and click search")
[code]....
I cannot figure this one out.. I have a background worker that will perform a task streaming data from some webpages. this data is then passed back and displayed in a gridview. It has been working fine.
I've recently implemented a listbox, which its values will be passed into the function that the background worker will perform as parameters, originally i had taken a single value from a textbox.
Now, I thought maybe it had something to do with the listbox, so I used a static value, just a simple String, as the parameter, and again, I get the TargetInvocationException was unhandled.. There's no difference in how I perform the task I'm trying to have the backgroundworker complete, the only difference is where it exists in my if condition statement:
Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles ScrapeSites.DoWork
Dim results As ArrayList
Dim worker As System.ComponentModel.BackgroundWorker = DirectCast(sender, System.ComponentModel.BackgroundWorker)
[Code]...
I have a list of string in an array. I'm loop through those strings and if the text of a combo box matches one of those strings, I want a message to appear. If they don't match, I want a method to be executed.
[CODE...]
The messagebox appears, but the method is still executed. Which means it isn't stopping when it finds the match. I tried exiting the loop, but it still doesn't work.
i'm starting to learn VB, i've wrote a few little programs following the books and internet resources, so far so good until now, i have to check a range of double integers(e.g. 170-50) if the left integer is == 170 and the right integer is == to 50 then you profit.i have to do this about 200 times but i just need a litow to get started, i've searched for about 4 hrs and read for about 5 and still nothing.
View 2 RepliesI have a datagridview with data from a mysql database, i want to know if is possible to autorefresh datagrid when mysql database is update.
View 5 RepliesI have a vb.net form with a dataGridView
The dataGridView data source is the dgvTableAdapter with this sql statement
SELECT membres.ID, membres.refere_par, bands.titre,
membres_1.prenom & ' ' & membres_1.nom AS reference_nom
FROM ((bands INNER JOIN membres ON bands.ID = membres.[band])
INNER JOIN membres membres_1 ON membres.refere_par = membres_1.ID)
[Code]....
I know the delete statement works because I saw the changes in the database. If I close the form and reopen it, the dataGridView is up to date.
The membres table is an access table
I'm running the app in visual 2010 debug mode.
I have a problem with a datagridview control, when first loaded with existing data it shows the correct rowcount figure.However, I have a function that when invoked triggers an oledbcommand to clear those records from the database (access) and load new ones from a file (excel/text).The oledbcomands work fine, and the gridview refreshes with the new data fine. However, the rowcount after this refresh is always 0, even with records. What I am doing is creating a module for my app that allows the user to specify the column title and types for a file import - and the procedure will read the header row from a txt/csv or excel file automatically.[code]If I just make edits in the datagridview (as in not invoke the above) the rowcount returns properly.If I close and re-open the form the new data appears, and the rowcount property returns fine also, but I don't really want to have to tell the user to close and re-open it before making any changes.I must be missing something on the refresh or with the datatable or adapter side of things.
View 2 RepliesIn a windows form I do have a datagridview. When a user pushes the button, the underlying datasource of the datagridview (a dataview) changes and the new content with new columns is shown. This works fine, only problem is that the header-height differs and that the datagridview does not properly display the smaller headers until I click into the first datarow of the datagridview. Simply using the .refresh()-method of the datagridview after assigning the new datasource does not seem to work.
Here is a little code-snippet showing how I assign a new datasource to the datagridview.
Dim view As DataView = myDataTable.DefaultView
With Me.MyDataGridView
.Columns.Clear()
.AutoSize = True
.DataSource = view
For Each col As DataGridViewColumn In Me.MyDataGridView.Columns
col.ReadOnly = True
Next ...
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 to update a dataset used in a DataGridView? I've added a column to the table (SQL Server) using in the DataGridView but the Refresh on the dataset doesn't work. I would delete it and re-add but I can find no way to delete the dataset either.
I added the following code and the data now shows in the grid but I'm not able to edit the new column in the grid because it is not reflected in the DataSet.[code]....