Populate A Datagridview With Rows In The Sqlserver 2005?
Sep 29, 2011
I'm trying to populate a datagridview with rows in the sqlserver 2005.how to use DataAdapters too well so I go back and forth between hard code and controls.I used the Datagridview control and added columns to it this way. 2 combo boxes, a check box, and 2 text boxes.The 2 combo boxes are populated with values that are already in sql Server for users to pick from. The task is displaying the description while the value is the task_ID. Here is my form on load:
Private Sub frmTimeSheet_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
currentDate = Date.Now.ToShortDateString
lblDate.Text = currentDate
I had a DataGridView in which i want to fetch the data from the access database,so i did this
Dim connString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=Etech.mdb" Dim myConnection As OleDbConnection = New OleDbConnection myConnection.ConnectionString = connString
[Code]...
In the above snapshot,after fetching the data from the access database to the DataGridView,i want to remove the PplicyHolderName,PremiumAmount and a few other columns since these are the columns which do not contain any data....
I see the DataGridView control has a property "AllowUserToAddRows" that I can turn on or off but what if I want the ability to be context dependent. i.e. I want an event that will fire when the user attempts to add a row in which I can cancel if certain conditions aren't met but I can't find an appropriate event.
i want to save into my sql server 2000 database multiples rows of a datagridview. i tryed something that first was working good, but i did a code change removing a column so now i'm trying to save again but i can't do it. It's shows me a message error like this: THERE ARE FEWER COLUMNS IN THE INSERT STATEMENT THAN VALUES ESPECIFIED IN THE VALUES CLAUSE. I rewrite the code, delete and add a new table and my code has the same values in the insert than my values clause. I don't know what else i have to do.
Here is my code
Private Sub cmdAceptar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdAceptar.Click Try
I have a datagridview control. I want to save the rows and then restore them the next time I run the program.
How do I write the rows out to an XML file?
I know how to fill the rows from an XML file. But when I've done so I can't add any more rows. It gives the following exception when I try: Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound. What can I do about this?
Or is there an easier way to save and restore the rows?
VB6 had a feature for it's datagrid where the user could use the mouse to drag the row divider in a datagrid and when the user released the mouse button, all the rows in the datagrid would resize to match the one the user resized (Excel does the same thing if you have all rows highlighted).
I have two datagridview's both are databound. First one shows items for sale and the second stores all the items that were sold. I am trying too transfer selected rows from one to the other but no matter what I keep getting told "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound."
now the remaining things are done-able but im stuck in new requirement posted by Client which he needs to upload all images from Sql Server to Oracle Database now since old application stores images Path it is kind of new story now ?(:
i tried to build sample application since am not familiar with kind of above requested modification here is my code so far to upload images
'' Sql connection is over Dim fs as new fileStream (imgPath , io.fileMod.Open , Io.FileAccess.Read) Dim imgByte (fs.length -1 ) as byte
I have an application putting new data into a database so I want to use a DataGridView to display the data. I have a timer triggering every 5 seconds and running this UpdateGridFromDatabase() routine every cycle. It works, but I can see my application memory usage going up by 10kB every 5 seconds until my computer with 6GB of RAm & 64 bit Windows 7 grinds to a halt! Can anyone see at a glance what I am doing wrong? I am trying to open & close everything as necessary. I have also dimmed two variables outside - I had then inside previously and it didn't make any difference.
I am new to SQLSever, Visual Studio and Visual Basic. I have read through Microsoft Visual Basic 2008 by Michael Halvorson and Microsoft Visual Studio 2008 by Lars Powers and Mike Snell. These books mention the ability to use SQLServer as the DB but I am not clear on the process. I am not knew to programming an have had training in OO programming but have never done any OO programing professionally. So, you can assume I am new to OO programing.
I have created an SQL DB using the Server Explorer in VS, and created a Windows form with Labels, TextBoxes, and ComboBoxes for the application's user to add the demographic information about a new employee. I created a new query with the Query builder that is in the Employee table of the DB which contains all the field for the record for inserting. I have a few questions to understand the process for inserting into the DB.
The DB fields are defined as numeric(6, 0), nurmeric(5, 2), and char(30) for some examples.
The maxlength on the form windows are in sync with the maxlength of the DB for the various fields.
1. What is the process to update the DB with the fields from the form?
2. Do I need to declare and set the results from the form first? If so, how do I call the function (query) that I created in the Employee table.
3. The emp_num I would like to be a dynamically incrementing number starting from 1000. How do I make this a dynamic? The emp_num is also the key on the Employee table.
4. I have a decimal field on the Employee table to hold emp_rate (pay rate). Does the user enter the decimal on the Form or is this resolved by SQL to take the 7 numbers and insert the decimal beause of the table's field definition?
Is there a way to make a DataGridView's column a combo ONLY in the "new row", and a read only textbox in all other rows? I want the user to be able to make a selection from the combo box, and when the row is finished and the "new row" moves down one, I want the column to become a textbox containing the what the user selected. My grid will be bound to a table witch contains a "category" column, that is drawn from a seccond table that i want the combo box bound to.
How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. You can better see what logic i am trying to perform at the bottom of my code, right after I insert into the database. Here is my code.
Private Sub btnLaserGenerateTicket_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLaserGenerateTicket.Click 'Function declarations
I have a database containing the tables afdelinginfo,afdeling en personeel in afdelinginfo is information about departements stored like webdesign etc in afdeling is stored who is working in which departement and personeel stores the information on the persons I have a treeview which I'd like to populate the with the departements from afdelinginfo and in every departement node as child node the names of the persons working there. this is what I've tried:
#Region "personeel management Queries" Private Sub fillTree(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'Declare variables and objects Dim strConnectionString As String = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=|DataDirectory|\bedrijf.accdb;Persist Security Info=True;Jet OLEDB:Database Password=miniemen"
How would i delete only the successful inserted rows for insert and then move the non successful rows up and allow the user to correct the data and get it ready for an insert. If i dont delete the successful rows then i will have multiple inserts of the same dataRow and we dont want that! :) AND if i dont move the data up then it will have blank rows uptop and will end the try and not insert the corrected data. Here is my code.
how to add Rows programmatically to the DataGridView's rows collection when the control is data-bound? here is my code but i got error as "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound? "
I am trying to add the Sales Revenue for each of the three rows and populate them in their own text box and then get a sum of the three text boxes. For Example:
I've populated my DataTable will all the results from a SQL search. Upon a button click I want to populate a combobox with all the results where a condition is met. My DataTable as a column called UserID and I want to add all results where the UserID is equal to a set value (for example 12). I can do this to add all results and I guess I could add a if statement inside this to be If Entry.Tag = 12 Then but is there a better way?
Can anyone tell me why "Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound." I keep getting an error "Invalid Operation Exception was Unhandled" error. All I am attempting to do is allow the user to select products from a list(or a second datagridview) and have it added to the datagridview so they do not have to type in every cell since the other cells are not visible because they do not purtain to their needs. Plus they will be able to save all items at the same time.
It was even difficult coming up with a Question title for this.
Am not sure whether am using the right approach to my problem. See i have this datagridview that contains rows that i would like have saved back into the Database as new rows but with a column altered to a new value.
Eg
PKColumn1 FKColumn2 Column3 Column4 1 1
[Code].....
What am looking at is Change FKColumn2 (some foreign key, maybe i can also have a combo box somewhere on the form and an "import to") values to something like 2 and save the rows back to the database without loosing the original rows.
