I have a DataView which has been populated with a list of files from a database table. I want to iterate through the DataView to see if there are any files there of a particular type, and if so, do something with that record, and then remove it from the DataView.
I've coded this as follows, but there's something missing - I can iterate over an object and then remove an object from it, since that will affect the iterator.
DataView dv = new DataView();
dv = ds.Tables[3].DefaultView;
dlFiles.DataSource = dv;
dlFiles.DataBind();
for (int j = 0; j < dv.ToTable().Rows.Count; j++) {
if (dv.ToTable().Rows[j]["FilePath"].ToString().ToLower().Contains(".pdf")) {
//do something with this record and remove it from the dataview
}
}
As a note, dlFiles is a DataList used to display the the items in the DataView. The files removed are displayed differently, and so should not be referenced when iterating through the DataList.
What I am trying is, whenever user enters his Name and Address into the textbox on the webpage, I am going to displaying it in a Gridview. Now if second member will do the same thing thing the GridView will be updated and his Name and Address will display in second row and likewise for other users. But what happened in my code is when second user will try to add his record, it remove the record of first user and add the record of second at row1. I want the record should be added one after another. below is my code
I am using paging to my gridview (pagesize=4) . now i am in (X) page and i want to get (X+1) page top record or (X-1)page bottom record , how i can get .
I have a delete button bellow my gridview and I want a pop up to show when no record is selected and tell the user to first select a record. The button click event would show the pop up, but my gridview data blanks out.
I'm very new on VWD, but I got the hang of it for the past 2 weeks(thank you for all the videos posted here in ASP.NET),but I'm really weak on the coding part(vb & c#),except for all the sample shown on the tutorials. Anyways, I have a simple project that does insert, update & delete to SQL express using the details view. But to complete my project, I need to add a button that will create an event to restore the very last record inserted in SQL and display it back into the details view for minor modification and nserted again as the newest record with the mod. I'm doing this so user, doesn't need to re-key-in redundant information, like names, original date & time etc, and just make modification on the description of the last record.....
I am counting from a table for that i have written code as below
protected void get_Id_Afterpoint() { int counter = 0; string strSql = "select count(*) as ID from tblEnergy where ID=?"; OdbcCommand com = new OdbcCommand(strSql, con); com.Parameters.AddWithValue("ID", DropDownList1.SelectedValue); OdbcDataAdapter oda = new OdbcDataAdapter(com); DataTable dt = new DataTable(); oda.Fill(dt); if (dt.Rows.Count == 0) { lblID2.Text = "1"; } else { counter = dt.Rows.Count; counter = counter + 1; lblID2.Text = Convert.ToString(counter); } }
there is no record related to DropDownList1.SelectedValue. but as i am counting if(dt.rows.count) and i put break point on the bolded part it shows 1 record. how it can be possible?
I want users to select a record in the GridView and then have that record open up in the Detailsview. How would I go about getting these two tools to communicate?
i have design a web application having suppliers table using SqlDatasource..
i have a master page in my design and other form are bound to a context menu..
Now i have displayed the records in the gridview..all i wanted is after i select a record in the gridview it will display the selected record in detailview from another aspx form..
i was able to create the link to another aspx form but the data that it display is the first data from the gridview not the data that i select.
I am creating an album using the following stored procedure, which returns the primary key for the newly created record:
SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE PROCEDURE [dbo].[fpa_sp_albums_update_insert] @album_id int, @album_name nvarchar (50), @album_descr nvarchar(250), @album_img_cover_id_FK int, @album_creation_date date AS If @album_id > 0 UPDATE [fpa_albums] SET album_name=@album_name, album_descr= @album_descr, album_img_cover_id_FK = @album_img_cover_id_FK, album_creation_date = @album_creation_date Where ((album_id = @album_id)) Else INSERT INTO [fpa_albums] ( album_name, album_descr, album_img_cover_id_FK, album_creation_date) VALUES ( @album_name, @album_descr, @album_img_cover_id_FK, @album_creation_date) Return SCOPE_IDENTITY();
I execute the above stored procedure using the SQLHELPER. The VB.NET code for the page is as follows:
[Code]....
However, the createdAlbumID always shows -1 instead of the id for the newly created album.
What I want is to filter the dataview so I get top 10.
I googled it and found out that I had first to sort the dataview. Then add a column (int) to datatable. This column I then made a AutoIncrement on......
This works fine - I can see in the codebehind that it adds a column to the datatable that I called AutoInc.
Then make a RowFilter on the dataview - here it goes "wrong" for me.....
When using the line
datVie.RowFiler = "AutoInc < 11";
and bind it to a gridview I don't get a error - but it also don't show me any rows in the gridview...... If I comment the line out - I get all the rows in the dataview..
I'm using a details view and a sqldatasource control to populate it. Every once in a while i get an error message because more than one row is returned. How can I have the data display in a gridview instead if more than one row is returned?
Title Return Type The Inception 1 NFS 2 Tron Legacy 1 Documentary 3 Roadrash 2 I want to pass this object to a method which modifies it using linq query to return the Dataview object as below(without using loops anywhere in the code) Title Return Type The Inception Movie NFS Game Tron Legacy Movie Documentary Others Roadrash Game
I have the following code, for testing im just writing the list to the page, but noticed that its missing the first record from the results. When i execute the procedures on the database, they return the correct values, so i know that part is working, the next part is for records that should be returning 1 record, the arraylist is empty, even though it should return1 record. What am i doing wrong with the code below? ( gratssec is a class that contains the procedures we are using.
I have a website where i already have User / Roles mechanism. What i am after is the if user update certain record i will include his username against that record thats easy enough. But if that row have multiple coulmns i want to save which coulmn he/she updated?How can i compare old and new data have save this information?
How to select top n rows from a datatable/dataview in asp.net.currently I am using the following code by passing the table and number of rows to get the records but is there a better way.
public DataTable SelectTopDataRow(DataTable dt, int count)
{ DataTable dtn = dt.Clone(); for (int i = 0; i < count; i++) { dtn.ImportRow(dt.Rows[i]); } return dtn; }
