The following code works well as long as I pass a querystring value to the datalist.
Private Sub BindGrid() Dim id As Integer = Integer.Parse(Context.Request.QueryString("id")) Dim strConnString As String = ConfigurationManager.ConnectionStrings("Conn").ConnectionString Using con As New SqlConnection(strConnString) Using cmd As New SqlCommand() cmd.CommandText = "select Id, Name from tblFiles where Id=@Id"
However, the page errors with the message "Value cannot be null." if I don't pass a value. I know that DataList does not have an EmptyItem Property like a Gridview control. I do not want the page to error if I don't pass a value. Need info to deal with empty values in a datalist.
Most websites have pointed me to this code to use:
The 'list' throws an error. The error is "Too few type arguments to 'System.COllections.Generic.List". I am not sure if the code is written in C# and that is what is causing the error. It seems that it should work but I can not figure out the 'list' error.
I have the following datalist setup on my page, now that its on a dev server with alot of records, anytime the datalist is displayed, its just one long page with all the records..any suggestions on how i can enable paging with this setup?
I've got a DataList showing images from a directory folder and this works well. However, I'd like to be able to page through the results rather than have one long page of images. I was wondering about putting the results in a GridView template somehow and use the paging on that.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Dim dir As New DirectoryInfo(MapPath("~/GalleryImages/")) Dim file As FileInfo() = dir.GetFiles() Dim list As New ArrayList() For Each file2 As FileInfo In file If file2.Extension = ".png" OrElse file2.Extension = ".jpeg" OrElse file2.Extension = ".jpg" Then list.Add(file2) End If Next DataList1.DataSource = list DataList1.DataBind() End Sub
i am using asp:pager to do paging for datalist... i have successfully implemented it but the problem is that he is showing all the page nos at one time instead of that i want to show 10 pages at a time then user goes on the last page then next 10 pages should show...
Am trying to use sorting and paging using a Asp.net DataList Control.....I found a Tutorial at asp.net website, but not able to understand that. I found other two links ,which exactly is of my need...but the only thing is that , it is in VB...[URL]
But Am working with C# I wanna Use Sorting & Paging For this
I am trying to get paging to work on a DataList bound to a DataSet, using SQL stored procedures, with and without parameters, and without using querystrings.
I allow visitors of the page to filter the DataList by either selecting a value from various dropdowns e.g to see products of a certain supplier on the page or by clicking hyperlinks e.g to show all products.
The problem is paging isn't working at all. The next and previous buttons are not changing the page. However, I am not getting any error messages.
Here's my code. Note I have excluded all my dropdown methods that simply call getData and pass relevant parameters. However the default dataset view should still work.
using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.Web.UI;
* Products table, it is consists of these columns :
Image imageand I want to desgin form for products, and this form contain these ToolBox
* DropDownList for CatalogeId
* DropDownList for BrandId
* DataList Control for displaying the Result Search
When the user visit Product Page for Example (productpage.aspx), then he see the two DropDownList , then choose one of Cataloge Name (Laptop , Printer, ....) , and choose one of the Brand Name (Sony, Toshiba, ....) , then Click the Button, and get the Result Search in Paging DataList