Forms Data Controls :: Generating New Data From Access?
Sep 28, 2010
I am writing a web form in C# using VS 2008. My form accesses an Access database that has a list of Cusomers. Each customer has a customerID. My goal is to allow the form to automatically generate a new customerID each time a user clicks on INSERT. I need it to take the highest customerID from the DetailsViewand add 1 to it in order for the customer ID's to be sequential. I am assuming I need a loop for this or maybe an Arraylist?
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Sep 1, 2010
I am working on a small website for project management.There are around 15 database tables. Since i will be using asp.net 2.0, I wont be able to use LINQ.I need to finish the development of the website in a very quick manner.How do i generate the data access layer automatically. I found NHibernate as one solution, but it seems too difficult for such a small project.
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Aug 20, 2010
I want to create a trafic controlling system and show data in a tabular format. as follows
----------------------------------------------------------------------------------------------------------------------
August
1 2
3 4
5 6
7 8
9 10 .......31
How to achive this using any of the data control gridview, datalist or repeater control ?the numbers 1,2,3....31 are the days in a month while "HomePage", "Maps" etc are the name of the pages and the entry below each date will show no of users visited the page. I want to show the same for every month
i have fetched required data and the output is as follows .
PageId VisitedDate VisitCounts PageName
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Jul 7, 2010
I am displaying the output of a LINQ query in a Detailsview control. I have a Detailsview called DetailsCaAb and a DropDownList called DropDownList2, when the use makes a selection from DropDownList2 the Linq query fetches the data CatAbstract from the table CatagoryTables. e.g.
[code]....
Unfortunately I cannot seem to control what is displayed by the DetailsView, I only want to display CatAbstract, but the details view generates another column called Items. How do I ensure only the data I want is displayed? I need a way of controlling the columns generated programmatically.
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Jan 11, 2011
I want to generate serial number in gridview but the serial number should be equal to the count of records for a particular column(in my case No. of Villages).
I know how to generate serial number but i am unable to generate number of rows equal to the number of records of my datatable column(Village_Name---say for example 45 rows--- any no. of rows)
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Jan 22, 2010
I am using following code to serialize class object into dataset. Storing the dataset schema in a viewstate, when I try to read the schema from viewstate getting following error.System.Xml.XmlException: There are multiple root elements. Line 20, position 2.Please let me know how to resolve this error.
CustForm cList = new CustForm();
cList.CustID = 10;
cList.CustName = "Testing";
[code]...
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Jan 7, 2011
I have a grid control that is dynamically generated according to supplier. If I have 2 suppliers I have 2 grid controls.
I need to send email to client the product information along with how much grid is generated.
Th email body is hardcoded along with required parameters. Something like,
"<table style='border:1px #6C9EE1 solid;' width='100%' border='0' cellspacing='0' cellpadding='5'>"
+"<tr><td bgcolor='#6C9EE1'>" +"<span style='font-size: 14px; color: #FFFFFF;
font-family: verdana, arial, sans-serif; font-weight:bold;'>For your attention...</span>" +"</td></tr>" +"<tr><td>"
+"<span style= 'font-size: 11px; color: #666666; line-height: 15px; font-family: verdana, arial, sans-serif;'>Subject: </span> " +"<span
style='font-size: 11px; color: #2266AB; line-height: 15px; font-family: verdana, arial, sans-serif;'>" + Subject +
"</span><br/>" +"<span style= 'font-size: 11px; color: #666666; line-height: 15px; font-family:
verdana, arial, sans-serif;'>Date: </span> " +"<span style='font-size: 11px; color: #2266AB; line-height: 15px; font-family: verdana, arial, sans-serif;'>"
+ string.Format("{0:dd MMM yyyy}",
DateTime.Now) +
"</span><br/>" + and so on
How do I add dynamic controls to such code? Also I need to change mail body as per certain conditions.
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May 24, 2010
I have a Gridview that I am using in a User Control. The grid loads great and my paging buttons that exist outside of the grid itself work properly. When I click my delete button inside the grid, I am getting an invalid postback message. How should I handle this? My control raises one event by the way.
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Dec 1, 2010
In my Admin page, I have a drop down list containing all current user tables in the database. The user chooses one.
My DetailsView below uses that parameter to populate itself with data from that table. The stored procedure used to select the data passes a string to sp_executesql. The string is concatenated from a select statement and the tablename parameter. Can I do something similar for Update/Delete statements? I'm not sure of the best approach, given that I won't know which/how many fields will be in the DetailsView at runtime, and which of these are keys - the choice of table depends on the user. I think Insert will be straightforward - am I right? I would like to streamline things as far as possible. Is it possible to dynamically pass in the values in, say, a string, and get my stored procedure to understand them? And what's the best method of grabbing the values from the DetailsView in this situation?
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Mar 30, 2011
This is my code and i am only able to edit the one data under the category school.But what i nd is to edit the other categories like the name,email...etc..how do i modify my code in the update command.Another thing is to delete the data how do i do that?
[Code]....
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Jan 27, 2014
Base on the following article:
How to generate and download PDF Report from database in ASP.Net using iTextSharp C# and VB.Net. I have a Nested GridView implemented from the following article:
Gridview inside Gridview in ASP.Net using C# and VB.Net
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Apr 1, 2010
when I used a code of exporting gridview into excel this code worked for a new website which is without masterpage.
my code:
public override void VerifyRenderingInServerForm(Control control) { }
protected void BtnGenerateReport_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition",
"attachment;filename=GridViewExport.xls");
Response.Charset = "";
Response.ContentType = "application/vnd.ms-excel";
StringWriter sw = new StringWriter();.....
Now the same code when I copy it in my project having masterpage . there is no compiler error but it is genereating excel file withno data in it but in fact there is data in the grid view at runtime.
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Mar 2, 2010
I have a simple function that is supposed to create a string of year values(separated by a comma) from a form that contains checkboxes for a set of years.
[Code]....
The problem is, it is doubling data somehow. For example, if I check the checkboxes for 2008, 2009, 2010, it will return :
,2010,2010,2009,2010,2009,2008
But I can't figure out why it is doing this...is there something I am doing wrong?
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Apr 19, 2010
I am having 2 text boxes namely
Bill No. & Bill date. In my project.
Now Here I want to generate bill no. automatically in some sort of sequence.
For ex: If once user clicks on the at that time if bill no. is WS 100
Then other time it must be WS 101.
It must auto increamented.
Same is for Bill date in bill date field I want system date to be taken everytime.
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Sep 28, 2010
I am writing a web form in C# using VS 2008. My form accesses an Access database that has a list of Customers. Each customer has a customerID. My goal is to allow the form to automatically generate a new customerID in the CustomerID textBox each time a user clicks on INSERT. I need it to take the highest customerID (already in the database) from the DetailsViewand add 1 to it in order for the customer ID's to be sequential.
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Mar 8, 2011
I have a search box on a web application that is to use a query I have built in Access to search through projects to find any that are related to the text entered in the search box.
The query in Access is just made up of parameters that use wildcards to search through all the fields. In Access the query works fine and returns the correct data but when I try and link this all up to a ListView in Visual Studio, the ListView just diplays the message "No data was returned"
Below is my page-behind code, hopefully you can see why it is not working but it looks like it should work to me.
[Code]....
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Jan 2, 2010
I use ObjectDataSource and DetailsView for Updating records . my Bll input parameter method is an Object instead of regular parameter . So i though i could make my own ObjectParameter in ItemUpdating event of DetailsView and i need some modifiation on the data that user input on boudfield in detailsView . I don't know how to access BoundFiled data from ItemUpdating Method of DetailsView.
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Feb 2, 2010
I can't seem to access a label that is outside the DataList. I wish to add the data in the label into a database, aswell as data that is inside the datalist (this is already working though). My SQL-query with only the specific label looks like this at the moment:
[Code]....
The data is added to the database when pressing a button inside the datalist (using onItemCommand). If I write UserIDLabel.Text the regular way it doesn't work either. The label is in the MasterPage, while the datalist is in a .aspx-page. If it is possible to somehow access the data that is in this label and add it to the database I would be ever grateful. Or is it somehow possible to add data that is in a Session and add it to the database?
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Dec 28, 2010
I have two databases (DB1 & DB2) from which i wish to build a single table/gridview output, ideally i want to be able to sort the table by using any data.
However i cannot seem to figure out how to have more than one datasource per Gridview, and if i have more than one Gridviews then i can't sort all the data by any of the columns.
This is a oneway street, i do not want to update the databases from the webfront end.
Here is a Trimmed Down Version of what i have
[code]....
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Mar 24, 2010
I'm having a difficult challenge of passing a DropDownList Selected Value to a Data Layer having a Function containing 'cmd.Parameters.AddWithValue("@CourseDDLid", CoursesDDL.SelectedValue.ToString)'. Visual Studio is indicating I need to declare 'CoursesDDL'. I tried accessing the 'Find Control' method but it did not work. Below are the codes for your review.
[Code]....
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Jun 9, 2010
I have to create some code for my website which will bring data from a database into my specific boxes. I have a map on my site which on click of a hotspot, a page will pop up showing a smaller map and the data underneath it. The data will be in text boxes. How do I get the data from the database into these text boxes?
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Aug 10, 2010
Let me try to explain my situation. I have a database table which contains, among other things, a boolean column called PermissionSlipRequired. I have a repeater on my page, and before each row in the database is shown in the repeater, I want to use my code behind to check the value of PermissionSlipRequired. Based on whether the value of PermissionSlipRequired is true or false, I want to change the text of a literal within the repeater. That's a real mouthful; hopefully some markup and code will clarify. Here's my repeater:
[Code]....
Here is what I've been able to come up with for my code behind. Needless to say, this code doesn't work.
[Code]....
As a former PHP user who is trying to migrate to asp.net.
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Jul 19, 2010
Here is the code for my page:
[Code]....
For some reason I seem to be unable to update my DB through the datasource. Is there anything obvious as to why this wouldn't be working?
I even added static values to the update string to see if this works but it still has an issue.
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Jun 21, 2010
I've googled around for a couple of days now and tried different solutions posted here and there, but nothing has worked so far. Therefore I'm forced to write a new thread about this subject.
I'm working on a solution containing nested listviews. The top listview lists different projects, and in each project a nested listview lists images from that specific project using a nested sqldatasource. Inside the nested listview I want the user to be able to add new images, and i'm using the InsertItemTemplate of the nested listview. When inserting a new image, the project need to be specified, as the project is a foreign key in my image database. The problem is that in my InsertItemTemplate, "Bind" and "Eval" does not work (I believe this is by design). Therefore, when adding the new image I don't have access to the project. I'm using the ItemInserting event of the nested listview to upload the image, and the optimal solution would be to have access to the project in this event and just pass it on as a parameter.
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Nov 8, 2010
I need to read a table from a dtgrid there is one code for example?
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