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how to display the database value in to the Dropdownlist box

Posted By:      Posted Date: September 22, 2010    Points: 0   Category :ASP.Net


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I'm trying to display product information in a repeater and trying to display the images as well by using a GenericHandler class but I can't get the image to show up in my page.

Here is my Handler.ashx class:

Public Class Handler
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how can i display the selected value of dropdownlist from edittemplate to label from itemtemplate?


I have a detailsview with a dropdownlist in it. the detailsview is connected to a database table(employees having the following fields: id-smallint,name-nvarchar, departmnet-smallint). the ddl is connected to another table (departments with the following fields: id-smallint, departmentName-nvarchar). the ddl is in the edititemTempalte of the department field. My goal is to display in  the itemtemplate the departmentName (the selected value from the edititemtemplate ). How can I do this? Doyou have any ideas?

thanks a lot

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Hi there,I'm really struggling with this tonight (this being exactly what it says on the tin, (or the subject!)).  Code I'm working with right now is:If Not Page.IsPostBack Then Dim Category As String Dim CategoryReader As OdbcDataReader = Database.Read("SELECT * FROM tblBlogCategory") While CategoryReader.Read() Category = CategoryReader("Category").ToString() End While DropDownList1.DataSource = Category DropDownList1.DataBind() End IfI've also tried things likeDropDownList1.DataSource = Database.Read("SELECT * FROM tblBlogCategory") but it just stubbornly refuses to populate the list (i.e. the pagealways loads with a blank drop down list).  An idea I'm playing around with is putting the values of the Category table into an array, but it seems to have a problem with that as well.  Hope someone can advise me and point me in the right direction.  Feel free to be critical of my code too.ThanksDouglas

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[Headline] [varchar](max) NULL,

[Text] [varchar](max) NULL,

I want to check both Headline and Text to see if they are null, and if so display an empty string each for them. I've looked at some tutorials but don't yet understand really how to use it. DBNull? DataRow.IsNull? Something else? Can I check both Headline and Text at the same time or do I need do check them separately?

Can't get image to display from SQL database


Hi all,

I'm having a heck of a time getting an image to display from a SQL database.  When I view the source of the page in Firefox and then click on the link in the source for the image control, I see the following message:

The image "view-source:http://localhost:4484/mySite/Handler.ashx?m=1342" cannot be displayed, because it contains errors.

Here are the details:

The column holding the image is an "image" data type.

Code on the ~/some_members/members.aspx page:

<asp:Image ID="Image1" runat="server" />

Code behind for the members.aspx page:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
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Handler.ashx code:

<%@ WebHandler Language="VB" Class="Handler" %>

Imports System
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Public Class Handler : Implements IHttpHandler
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dynamically populating the database in the dropDownlist using c# in asp.net


hi everyone , plz listen my question very carefully

i have 2 tables  Desgn & EmpForm

Desgn table is lik this

CREATE TABLE [dbo].[Desgn](
    [DesignationCode] [int] IDENTITY(1,1) NOT NULL,
    [DesignationName] [varchar](50) NOT NULL,
    [DesignationCode] ASC

EmpForm table is like this

CREATE TABLE [dbo].[Empform](
    [EmpId] [varchar](50) NOT NULL,
    [EmpName] [varchar](50) NOT NULL,
    [EmpSalary] [numeric](18, 0) NULL,
    [EmpDesignationcode] [numeric](18, 0) NOT NULL,
    [EmpDateofBirth] [date] NOT NULL

now my ques is i want to dynamically populate the dropdown list of designation on the basis of the code but instead of code name should get populated .i have written the code like this 

public void Populate1()
        SqlConnection con = new SqlConnection(System.Configuration.ConfigurationSettings.AppSettings["co

How to display image from database using MVC2 & Entity framework.



I am very new to MVC and entity I have being searching all over the internet on how to do this. Please help.

I need to do a site similar to http://weblogs.asp.net/scottgu/archive/2007/11/13/asp-net-mvc-framework-part-1.aspx but don't know how to display or retrieve the images as in the above website.

Thank you so much!

how to create dropdownlist user control(acsx) and fill from database


how to create dropdownlist user control(acsx) and fill from database

Dynamically display images from SQL database


I've found several good examples of how to display an image from a database, but I'm looking for an example of how to display an image within an aspx page with other controls.  This code works fine, but only displays the image by itself on the page (item4 is the image data, stored in SQL Server as type=Image):

Stream strmImage = new MemoryStream(item4.Image_Data.ToArray());
byte[] buffer = new byte[4096];
int byteSeq = strmImage.Read(buffer, 0, 4096);
while (byteSeq > 0)
    Response.OutputStream.Write(buffer, 0, byteSeq);
    byteSeq = strmImage.Read(buffer, 0, 4096);

I've also tried to save the data as a System.Drawing.Image, but like using the Response.Outputstream instruction above, it immediately outputs the image and nothing else on the page.

System.Drawing.Image myImage = System.Drawing.Image.FromStream(strmImage);
myImage.Save(Context.Response.OutputStream, ImageFormat.Jpeg);

In simple terms, I want to get the image from the database, stick it in a variable or something like that, then display it in a table.  Any suggestions?



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