Update A Particular Column(image) In Sql Server Db While Assinging?
Apr 25, 2012
Have to say that, i managed to create a code which inserts image into the sql server atabase from vb.net program and its working but doesn't meet my requirments:1. when i run the application, select the image file location, it just saves directly to the db. in this case, i would like to import the image in a picture box control prior saving it in the database.2. whilst i have a navigator toolbar which has things like save button and add new infor buttons, i want to leave other details for that tool bar then the imagebutton should only do one task..thats storing image in database.hers the code i wanna share with you:
Private Sub Imagebutton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles imagebutton.Click
i mean, if i have an update button for inserting images and i have got another navigator which adds information to the database, how could i delete a selected row in sql server database...In dataset, i used to remove a specific row in database by doing:
me.customersbindingsource.removecurrent() So, this one doesn't delete anything when the image is included. 1.
i looking for a easy way to save a image to a sql server i have found a lot of examples but many is for asp.net and others have many functions for do a simple process that with vb6 i do with a few lines:
[Code]...
but this simple dont update nothing i have tryed to update a text value but the result is the same nothing is updated! but he actully dont return any error and i can see that the record is opened but simple can't update
I am looking for the best way to edit and update the value of a database column that is defined as data type TEXT. You can't use a replace command in SQL and if I read in the value, update the data and update the record, the changes are not applied.
I want to know how to create an image column in a SQL Server table and retrieve it in ASP.NET using VB.NET create table Tbl(ID int primary key,Name varchar(20),Image ....)
I'm trying to update pictures boxes with images of controls stored in an imagelist owned by a control. The images stored in the control.imagelist do not showup in the picturebox. I'm working on simplifying the code to post, but for now could use help.If I store the image in a member variable owned bythe control it woks fine.Something to do with persistance of images in control owned imagelist? [code]
I have a client/server application set up that the client sends a word file to the server and then the server converts that word file to a .TIF and sends the image back.The stuff I have now works.Say if I sent the size of the file and the actual file byte() to the server back to back, would the NetworkStream contain both back to back? This what I though would happen. So I implemented a kind of 'turn' based interaction during the duration of the conversion process.
How can i insert an image file from images folder to sql server database. I have <input id="File1" runat="server" type="file" style="width: 397px" />on my aspx page. I want to insert a blank.bmp file if user does not choose any image file. this blank.bmp file is in my images folder.[code]how can i insert an image from images folder.
Using VB.NET and SQL Server 2005//In DataGridView n number of rows was displaying. Suppose I edit some value in the datagridview cell then I click save means it should update in the table also. Suppose I click add button means it should add a new row in datagridview.
I try an update but I get an error"The Index was out limits.I shouldn't be negative and should be smaller than size of the collection" This concern this line in debug "Dim courseId As String = gridViewCourse.DataKeys(e.RowIndex).Values("CourseId").ToString()" This my grid asp code
I want to add the ability to post images to facebook or Flickr in my app.Basically, they just browser for the file using an OpenFileDialog to get the path. Then they click an 'Upload to Flickr' or 'Upload to Facebook' option.how to do the upload to facebook/flickr part? How is it done?
Using VS2005, VB.Net, Dot Net 2.0, SQL Server 2000. If have some Columns (varchar and numbers) in a DataRow that I want to set to DBNull in the database. The fields as defined as Nullable in SQL DB table.
I have some fields that are populated when loaded but I want to update to be null using the ADO.Net data objects. If I try and use Row("FieldName") = DBNull.Value a 0 gets written to number fields (not sure what gets written to varchar fields.) What code should be used to update fields to Null using ADO.Net dataobjects?
I cannot update the column value on a *.csv file. Will someone help me out in this.My code snippet is as follows:
Dim str As String = "" str = "update data.csv set code=code+'Test' where id='aafes'" da1.UpdateCommand = Conn1.CreateCommand da1.UpdateCommand.CommandText = str
I've been looking around online, and havent quite found what im looking for.I have an unbound DataGridView on my form that has 1 columns ID and NAME, i did a loop to fill in all the ID columns. Then when i loop trough all the ID's, i want to update the NAME column with some data.
I have this Access Database. It has 6 Columns: ID | Class Name | Class Code | Class Room | Grade | Teacher My ID is the Unique Column that I need to reference back too when Updating my other Fields so I get the correct field. How do I do this? Properly.
I've been thinking of a method but I doubt it would work. First I would start off selecting all the ID's and then LOOP through all of them, and then rewrite them to to + 1 Each time I make a Delete, so Each Time it will be a consistent 1 2 3 4 5 6 7 8 9 10 .... etc... Then I can reference from that to my Combo Box Selected Index + 1 to get the Correct Row which corresponds with the Selected Item.
I have a dataset with a number of data columns, due to sizing issues I've updated a number of the varchar columns from say VARCHAR(20) to VARCHAR(50).I'd like the DataTable to automatically grab the new column information, is this possible? I'd rather not go through each column in the table and update the length.
I have a dataset with numerous tables.I have changed the column type of a couple of columns in the source DB form smallint to int.No I need to update the datasets (and eventually the code) to the appropriate datatype.Rather than hunt around the dataset and find all the places where these columns are referenced is there a way to direct the dataset to go back to the DB, reread the queries and update the datatypes.I know I can either change the field or one by one go to each table and force it reread the query but I want the dataset to do it in mass.
The code below updates all cells in a DataGridView column to a value from a textbox. This code works in that all cells in the desired column are updated on screen. The DGC is bound to a dataset. The problem is that when I call the dataset .Update method, sometimes the first row (row 0) does not get updated. I have run SQL profiler and can see that no SQL update command is submitted for the first row. The first row only gets skipped the first time the update is run after launching the app. Subsequent updates run for all rows, until the app is re-launched.
I have verified the row state is Unchanged with: Msgbox(DataGridView1.Rows(r).State.ToString).
The 2 commented lines below are other things I have tried that still cause the first row to be skipped.
Private Sub btnUpdateAll_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnUpdateAll.Click If IsNumeric(Me.tbUpdateAll.Text) Then
Attempting to run an SQL statement to UPDATE a column in a table with new data. The column being updated is defined as varchar(40) and the new data is 41 bytes (varchar(41)). I get a generic 'data will be truncated' error message, but no detail on which column caused the problem. I've attached a sample VB program to illustrate the issue. In this scenario, Company is defined as varchar(40).
My question: Can I get a more detailed error message? i.e. can I get an error message that tells me the row and column that the truncation occurs in? Often times, I may be updating hundreds or thousands of rows and only one value in one column from the source file is too large for a database cell. As a related question, does each OLEDB provider create its own error messages. i.e. will the MS SQL Server OLEDB provider potentially give different text in the error message than say the MS Jet OLEDB provider?
Imports System.Data.OleDb Module Module1 Dim cn As OleDbConnection
I have program in VB.NET 2008 where I want to update the premamt cell value in the tblPrem Access table, where the premno is the maximum (autogenerated as 1,2,3...), but only within a specified set of common numbers in a column (contno) I am currently saving. This contno is from another table (tblMain) linked in this table (tblPrem) where it is the primary key, and just repeatedly generated after the clicking save button. Here is my current code which saves the data but does not do anything on the textbox1 + textbox2, and has an error message "At most one record can be returned by this subquery":
sqlQrySave = "UPDATE tblPrem SET premamt = " & textbox1 & " + " & textbox2 & " WHERE premno=(SELECT MAX(premno) FROM tblPrem GROUP BY contno);"
Im trying to add columns to my database through VB.NET. I have a MS Access database (MDB format). It has a table in it called "TestTable" and that table has only one field in it "FirstField". It has no data in it yet. I want to add columns to it first and then fill data.
VB.NET i have only one colum in back end database that is roll. .. Now i want to update a particular data .. the data types is integer.. i has a data like 12 and i ant to update it 13 how can i do..
I have an access database with several tables. in one of the tables there are three columns named quantity, price and total cost.total cost is an expression of (quantity * price). the expression looks grate in the datagrid etc but when I need to save it to the database
I have a window based datagridview with examdate as one the editable datetime column .Now i want user to update or change the date to a fully valid format(dd:mm:yyyy) just on pressing enter key within the datagridview. A popup message must appear when user enter wrong date.
I don't understand this code (listed below). this code attempts to modify the products table . It creates an update, delete and insert command. I don't understand where it gets the data values from. What I mean is that, how does it know which record to delete. there in no input box or textbox from where it can get the product ID, which would identify which record to delete.[code]...
