I have created datagridview from my datasource using drag and drap. Without any changes it works fine, I can add, edit, delete and save. I added additional queries with my dataset which is fillby. My problem now is if I change fill with fillby the updateall is dosn't work anymore.
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I have a BindingNavigator1 binding to a datasoure. In default, we can add,delete, save data with BindingNavigator1 control. i want to know : how can i write more code to event click of "delete" button(or add , save button) in BindingNavigator1.
Example : i mean i want show messagebox yesno before delete operation is performed.
if result = yes then delete. i tried this but not yet :
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This is my code.whenever i entered the data after click save icon, following error will occur. "Update requires a valid UpdateCommand when passed DataRow collection with modified rows." using BindingNavigator to store the image in sql server 2000.
I'm using vb.net on vb 2005, I create datagrid view that when i click search button on the main form. It will show datagrid view that I want and when i click OK to select any record, the selected record will show on the desire text box in the main form. The problem is the record i choose is record no. 5 of all 10 record but the Bindingnavigator tools bar show that it's the first record of all 10 and when I click Next record arrow, the error message show that the 'PK column name' is unique and the 'value of the PK from my selected record' is already exist. [Code]
View 1 RepliesVisual Studio Express 2010. Windows Forms Application. New MDF Database. Add a table, put some data in it. Now, from the data sources window drag a DataGridView over to the Form1, drop it. There is no BindingNavigator created with it, so I drag on over there from the toolbox. Run it and the BindingNavigator does nothing. Why/how do I make it talk to the DataGridView?
View 3 RepliesI wonder if it's possible to assign BindingNavigator.PositonItem with a datagridview selected row?
I have looked through msdn and it looks like it ain't - am i wright ?
All in all i've got a problem with delete item - it can only delete an item with number that's in PositionItem, while I'd like to delete current clicked row
I used the wizard to create a datagridview and then binded a grid to an access table.Data show up fine..But I can't dete records via the bindingnavigator.Hit the delete button then hit the save button ?Data does not get updated in the backend database.My properties are set to true for adding and deleting.
View 1 RepliesIn my datagridview I was fill in using join tables (table1 = pr_employees, table2 = pr_employee_deduction). My problem now is during save button I want to update records from table2 only.[code]
View 3 RepliesI am trying to develop an inventory system.The datagridview that was done by dragging and dropping onto a form would have a bindingnavigator which had "move first, move previous, move next, move last, add, delete and save icons" but when I deleted the bindingvigator and brought in a new one from the toolbox, the "save icon" wasn't there. The reason I was doing so is because I wanted to have all my database tables in a tabcontrol. So could you please tell me how I can code the "save icon" which save the data in a datagridview.
View 7 RepliesHow to save all the data displayed in DataGridview( 2 column, no primary key) and have a button and
View 7 RepliesRegarding my college project. i'm working on a sales system . i have a form which consist of all the following information( item code , item name , item price , quantity of item ) which is display using a data grid . data input by user using text box and all this information will be stored in a database(sales database) i'm using ms access 2007. the grand total will be displayed in a text box . and amount paid will be input in a text box too , my major problem now is how to i create a reciept that will have all this information of the purcase. i have a reciept button . what the next step ? i dont have any idea how to get the reciept done.
Imports System.Data.OleDb
Public Class Form5
Dim con As New OleDbConnection
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Dim wri As New IO.StreamWriter("e: est.txt", True)
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when u select s1 then u click save it so the txt file will have items s1 only and when u select s2 and click the save button then in txt file u have 2 items
I am trying to save a listview item and 5 subitems to a txt file, I have tried one solution that was posted on here but i could not manipulate the code for all of my sub items.
View 8 RepliesPart of my MVC 3 VB.NET has a view that uses a list(of model) and a for each on that model to list all the contents.. The problem is that a selectlist is part of each item.. When the value is selected for each item it is not being posted back to the controller with the rest of the items.[code]....
View 1 RepliesI have one listbox an import button and a save button. Basically the import button allows the user to select photos and he list box then shows the directory for them. Is there a way to save the image that has been selected to a different place? whilst at he same time changeing the file name.e.g. the list box would have the directory like this "c:documentspicturesimage1.jpg" I would then like to save this file like such "c:desktop est103.jpg"
View 1 RepliesWhat i'm attempting to do is have several textboxes where the user input's there information and a seperate text box to give there input a name so it can be sent to a combobox and saved with my.settings so when the program loads or the user needs the textboxes populating they can select the name in the combobox and it fill out the textboxes.
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i set the datasource property of my combobox to datatable and ofcourse the displaymember and value member and now i want to take the text in the selected item aand save it into variable? i tried this
dim x as string=nothing x=combobox1.selecteditem.tostring but it is returned datarowview so what i must do??
Ok. So, how do i save things. Ive made a Checked Item Box. But i can't get any of the things to Save that i have Checked?
View 9 RepliesI'm a computer science student and I have a project to do where I need to have VB connected to a webcam to take captures of items and then save them according to the item name that stores them into either a dbase or access database. I have knowledge of oledb using vb to retrieve and modify access databse so it might be better to head in that direction, but I have no clue how to get the webcam talking to vb and see the live feed from the cam until you take a picture and save.
View 1 RepliesHow do I save an existing project to different local location via IDE menu?
View 1 RepliesI have a problem with a combobox. I have a form (with information about clients) with textboxes binded to a dataview. One of the columns in the dataview contains a number that tells me what kind of client it is. I don't my users want that my users have to fill in a number in a textbox, but I want them to choose a item from a combobox. De selected value should be the value that is actually saved in the database.
This is my
Dim cmd As New SqlCommand
Dim dr As SqlDataReader
VerbindingMaken()
cmd.Connection = cnnVraagbaak
cmd.CommandType = CommandType.StoredProcedure
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De Datasource is the information in my combobox. With Databindings I'm trying to bind it to my dataset (or view, that doesn't work either) with clients. Every time I get a NullReferenceExeption. The moment I remove the line cbo.DataSource = dsRelatie.Tables("Relatiesoort"), I don't get an error, but it doesn't work either.
That dataset is filled (I've checked) and also the derived view. The column Relatiesoort exists. What do I have to do to make it possible for my users to choose an item from a combobox and save the selected value to the underlying dataset?
I want to save my data from 1st datagridview to 2nd datagridview. I only able to get each cell value from datagridview.
Private Sub dgv_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgv.CellClick
curRow = dgv.CurrentRow.Index
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I wish to copy only certain row data when user click on the cell and add in into 2nd datagridview when click button add.
I add items to my DataGridView:
DataGridView.Rows.Add("Item")
And finally I number the HeaderCell using this code:
For Each Row As System.Windows.Forms.DataGridViewRow In MainDataGridViewX.Rows
Is there a way to number it while adding items to the DataGridView so do it at the same time?
I am trying to understand how the binding navigator buttons are actually working.
I started by creating a table called "Students" in MS Access,
I then "dragged and dropped" that table onto my VB form after importing the data connection.
When I debug, I click the add new (the yellow plus "+") then I type info into my fields (700_Number, First_Name, MI, Last_Name). (700_Number=Primary Key)
After I am finished typing into the four text boxes, I click save. If I end my program then start the debugger again, the record is still there...it goes away only if I change some of the code anywhere in my program.
Also, I am trying to use the record I just put into my database for another part of my program. I use this line of code:
MsgBox(frmAddStudent.DrByrdsTaskListAppDBDataSet.Tables("Students").Rows(0))
This is just to see if what I am trying to put into my database is actually making it there. Every time I run, this message box turns up blank.
when i click an item in my datagridview, how can i get the item value?i thought datagridview.item would give me that.
View 5 RepliesI have an Access database with a Parts table. I'm using tableadapters in my project. A datagridview on my form is filled manually in code. One column of the DGV contains a columntype of combobox. I've got a bindingsource on my form whose source is the Parts tableadapter. The combobox column is tied to the bindingsource and is displaying fldDescription.
The part descriptions can be changed by the users, but the original part description is saved in another table that is used to fill the grid. If part "widget" gets changed to "widget, large" I can no longer display "widget" in the combobox of the grid. I need to know how to be able to add it to the bindingsource so I can display it in the combobox. I don't want it saved to the Parts table though.
I'm using a comboboxcell in a datagridview with the combobox autocompletemode set to SuggestAppend.When I enter the cell and start typing, the autocomplete window pops up. When I click an item in the autocomplete list, the cell value is set and the cell exits edit mode. This has the same effect as selecting an item with up/down arrow keys from the autocomplete list and pressing the enter key.)
I want to copy that behaviour when an item is selected from the combobox dropdown list.E.g. if the user clicks the dropdown arrow button to open the dropdown list, then clicks an item in the list, the cell value should be set to that item, the dropdown should close, and the cell should exit edit mode.I've tried adding a handler to the combobox mouse click event, but the combobox only seems to receive that event if the main part of the combobox is clicked, but not if the mouse is clicked somewhere in the dropdown part. I don't think this matters if the combobox is used in a datagridview or by itself. how to capture a mouse click in the dropdown part of the combobox?
DataGridViewX.CurrentRow.Cells.Item(0).Value.ToString
If the item is blank and no data is entered it will throw a null exception, so the question is that how can I check if the item is null or not? Even using this:
If DataGridViewX.CurrentRow.Cells.Item(0).Value.ToString IsNot Nothing Then ...
Will throw the exception!
i have imported items in a datagridview but i like to know how to change the color of an item?
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