I've inherited a SQL Server 2005 table where there are several colums of the image datatype. I'd like to extract all of those images and save them as files to a folder. How can I do this using VB.NET?
Brian
convert below datetime value which is as varchar datatype to another datetimeformat as varcharchar datatype
2010-05-19T13:05:08.6Z
In of my application I am using the database to store and retrive images. The table stores the documents and the datatype of the field is IMage.
Now with Sql Server 2008, i would like to upgrade this to use this new feature. WHat changes do I have to make in terms of code and also in the database.
I am trying to create a custom datatype. The intention being a dropdown list. As of right now, I can access the control I created but no properties or values are showing up within it. Just the blank drop down.
public partial class usercontrols_admin_customDataType_CountryDropDown :
System.Web.UI.UserControl,
umbraco.editorControls.userControlGrapper.IUsercontrolDataEditor
{
public string umbracoValue;
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
DataSet ds = new DataSet();
FormFieldBuilder countries = new FormFieldBuilder();
ds = countries.GetAllCountries();
ddCountries.DataSource = ds;
ddCountries.DataTextField = ds.Tables[0].Columns["DisplayName"].ToString();
ddCountries.DataValueField = ds.Tables[0].Columns["guiCountryID"].ToString();
ddCountries.DataBind();
}
}
#region IUsercontrolDataEditor Members
public object value
{
get
{
return ddCountries.SelectedValue;
}
set
{
if (value != null)
{
ddCountries.SelectedValue = value.ToString();
}
}
}
#endregion
}
how to display image datatype from sql server (stored in binary format) in gridview or any control.
View 5 RepliesYes..i know this is ASP.NEt forums but the SQL server doubt i will be going to ask is related to ASP.NET
I have a table 'a' in my database where i store User information - each time they visit the website a new record is added
so in a high traffic website - the information will be collectively huge(i dont care about this as i have too much of disk space)
but the problem here is with the primary key - I want a datatype of the primary key which should never end Bigint can store some zillions of records but it finally ends... how will i be able to accomplish it.
I'm using DAAB from MS Ent Library 4.1. I have this function in my DAL that returns a dataset.
[Code]....
However, it is failing with this error:Failed to convert parameter value from a String to a Boolean.
But if I use SqlDbType.VarChar instead it works fine. I want to use Char b/c that is the correct datatype in SQL.In my SP the param is @CUSTNMBR char(15). In my database table the field is also char(15).
In MVC 2 which datatype uses a checkbox as its default control for either editing or creating? Seems they all use textboxes.
View 7 RepliesI want to filter by database result based on the current date. I have a grid layout which will display the result based on the current date. I am using parameterized query for getting the result but it is not working.given below is the query i am using
<asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
SelectCommand="SELECT TestID, Title, Description FROM aspnet_Test WHERE (Date
=@testdate)">
<SelectParameters>
<asp:Parameter Name="testdate" DbType="Date" />
</SelectParameters>
</asp:SqlDataSource>
and the result should filter on the basis of testdate
String testday, testmonth, testyear,testdate;
testday = System.DateTime.Now.Day.ToString();
testmonth = System.DateTime.Now.Month.ToString();
testyear = System.DateTime.Now.Year.ToString();
testdate.Text = testyear.ToString() + "-" + testmonth.ToString() + "-" + testday.ToString();
but this is not working .It is not showing any error but i am not getting any output.
I have been looking for a way to convert C# datatype into database specific type of MS SQL. For example when I do [Code]....
I would get System.GUID or something like that but what I want is UniqueIdentifier instead of System.GUID. In most cases, I would also want the length of the type like varchar(1000) and stuff like that. Is there anyway I could convert or get similiar result ?
i want to export my excel data to sql server.
The excel data contain
1) id 1,2,3,4.5 which is int type
2) name abhi,soni which of varchar type
3) percentage 40.1,50.1,62.5 which is of type decimal
i wrote an application that will export data to existing sql server table
now what i want is to analyse excel data and then determine the type of data and then create a table with the analyse datatype and then export.
I am using VS 2008.I am building a datatable of records to be inserted into a SQL Server 2005 table.
The program loops through this table and builds a SqlParameter for each DataColumn in the datatable. The SqlParameters are used in the SQL Insert statement.
The field I am having a problem with is of type 'bit' in the database table and has no default value and cannot be nulls. The field is called 'Active' The meaning of this field in the application is Boolean i.e True or False. When inserting the record, I wish to default the field to "False".
When I define the columns in the datatable I am forced to use the following code to build the datatcolumn containing the boolean field i.e. dtcActive.DataType = GetType(Boolean) as there is no GetType(Bit)
Dim dtcActive As New DataColumn("Active")
dtcActive.DataType = GetType(Boolean)
dtcActive.Unique = False
dtcActive.AllowDBNull = False
dtcActive.DefaultValue = False
dtProviderDayDetails.Columns.Add(dtcActive)
However, when I build the SqlParameter I am forced to use this:
If field.ColumnName = "Active" Then
prm.SqlDbType = SqlDbType.Bit
prm.Value = "False"
End If
This is because there is no SqlDbType.Boolean. The problem I have is there is no value I have been able to give the SqlParameter that is accepted by the Insert statement. It complains that the boolean field cannot be null on Insert.
I am using SQL SERVER 2008 database. I have a table Customers in which the CustomerID column is had datatype INT intially but due to increase in Customers the number range is exceeding which may cause error arithmetic overflow of data. Hence I thought to modify the datatype from INT to BIGINT and wrote an alter script but when I ran the script it failed. Hence provide me in creating alter script for the updating the datatype of the primarykey column for the Customers table.
View 2 RepliesI'm trying to get an image from sql (datatype image) and show it in a web form UI.image control. So far I have:
Parent.aspx
<img
src="Image.ashx?id=SomeIDinGUIDformat"
alt=""
/>
Image.ashx
[Code]....
[Code]....
I think the code is looking good to the T but.... doesn't work... I get a red x where the image should be.
In MSSQL server 2005/2008, we have one column (in a table) declares as "Image" type. What data type in C# so I can grab that value in that column in our class? Can string handle it or byte[]?
View 1 RepliesI have a column in sybase database with image datatype which stores some message information. I want to convert back to text when presented to the user. how do I do it in the Client side? if someone has any suggestion or related code.
View 5 Replies i am store ms word resume to image(BLOB) data type in sql server 2005. now i want to display this resume in HTML page or in text area. and for that i use
[code]....
I'm just now created Dynamic Data Entities Web Site. And I have got a problem with image type. for all sql data types generated html elements by fieldTemplate. So, how can I create fieldtemplate for image-view, and image-upload?
View 1 Repliesi wanted to store image in sqlserver database image field and i did. But now in some cases i want to store null value in that image field how to do this using file uploader.
View 3 Repliesi need to save multiple documents stored in SQL server as Image type to disk.
What i want to do is "backup" all files in a table (column) to disk, zip them and Response.TransmitFile(FilePath) to client.
I could use C# ot VB but that would require a lot of connections to database or a lot of server memory and i don't want that, becauze there are a lot of files to be saved Since SQL can write files to disk i was thinking about saving those files to disk directly from sql. Something like when u're doing a backup
[Code]....
I need to populate a database (SQL Server) with some data from a templated excel document.Here are some approaches:
A) User upload a file.xls or file.csv that the server reads, checks and updates the database (cons:the uploaded file might be too big. file.* needs to be in correct format)
B) User downloads a tool.exe to read and upload file.xls (cons: maintenance of the tool.exe)
C) Use of a web service in excel? (don't know how to do it) but
this article might give you a hint
Which one is the best to use? Are there any others?
i am trying to create connection using OLEDB connection in my app. but i am not able to create the connection as in datasource i want to use Server.mappath, but cudn't find the right method to use it. i am trying to make connection with Access database file. following is code i have tried:
string path = Server.MapPath("~/uploadaccess/Production.mdb");
string ConnectionString = @"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb")&";";
and also
OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & path&";");
and tried this
OleDbConnection myConnection = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & Server.MapPath("~/uploadaccess/Production.mdb"));
and this is the error i am getting:
Operator '&' cannot be applied to operands of type 'string' and 'string'
Actually I'm not a professional in ASP.NET. I'm going a project that needs to support two languages (Russian and English).I've already completed the main parts and the site is now 95% functional.However, now I need to enable language selection on the site.
I'm going to do it with DropDownList, where a user chooses one language from DropDownList, the content must change to particular language.
All texts are displayed using server controls like Labels and Literals. Links are in Hyperlink or LinkButton.
I did some research to handle with my condition, but no-one suits on my condition, because I've almost completed the application. How to generate Global Recourse files for controls on the page?
I have a database, one field is named "clicked" with values 0 or 1.
When the gridview is displayed I would like to show the value from the field "clicked" to be displayed as an image (example: instead of 0 to display and for 1 to display)
Is it possible?
Is there a way of filtering large CSS files for the only required selectors on a page, and creating css files that contain just these selectors?
Case: I have a very large CSS file that I want to filter on a per page basis, so that the file size is cut down and can be cached by mobile devices. I was thinking along the lines of something like a server side dust me selectors tool.The particular project I am working on is using ASP.NET MVC.