I am trying to simply display .mdb database Using ASP.Net List View and AccessDataSource control but when i try to modify in Browser it generates the following error
[OleDbException (0x80040e10): No value given for one or more required parameters.]
Related
I made a program to create Jobs field Tickets, and i want to add a option in the same form that open MSPaint or other program in a blank page using the ticket number as a file name, so, whoever is creating the Ticket can hand draw anything.
Create an empty template image file with appropriate dimensions and file type at a constant path
use FileCopy to copy it to your desired path & file name
use Shell to launch a mspaint.exe command-line with your file name as parameter.
I was trying to upload some images in my website using input type=file in my asp.net mvc project.while storing the image I used the following code and it is saving the image successfully.
var path2 = Path.Combine(Server.MapPath("~/Images"), filename.jpg);
artwork.SaveAs(path2);
After that I need to save the whole link ( http://example.com/Images/filename.jpg) into my table column.
for that i tried this
tablename.imagelink = path2 ;
then in table column I am getting like
D:\xxxxx\yyyy\example\Images\filename.jpg
then i tried to save the whole link directly
tablename.imagelink = Path.Combine(Server.MapPath("http://example.com/Images/"), filename.jpg);
at that time I am getting an error: "is not a valid virtual path error"
How to solve this. ?
Server.MapPath requires the virtual path of the web server, and you get the error because you're passing the full path like this:
Server.MapPath("http://example.com/Images/")
You need to keep using this:
Server.MapPath("~/Images")
I received the following error on an application which I'm using Classic ASP as
the programming language, and Access Database (accdb)
ADODB.Parameter error '800a0d5d'
Application uses a value of the wrong type for the current operation.
I'm using memo as the data type in Access Database. The content which I'm trying to write into the database is retrieved from a Text Area, and contains HTML Scripts.
Here's the parameter:
objCommand.Parameters(1).value = content
Anyone has any suggestions on what I should do?
Use objCommand.Parameters(1) for to force convert to string
I've been looking for this answer for a couple days now and I've been getting little bits of information that make it seem that you can have ReportViewer Control automatically prompt for the report's parameters. Just everything that I've tried and found doesn't seem to work. I've gotten the Parameter Prompts to work on a Windows Form but I just cannot get it to work in ASP.NET
I guess I'm simply asking can you get Report-viewer's Parameter Prompts to work in ASP.NET? if so, How?
I know you can do it manually, it's just, I feel if you can make ReportViewer Prompt automatically why program it yourself?
Edit: this is for local processing btw.
Prompting for parameters is not supported in local processing mode.
In article Report Parameters Dialog Box (Visual Studio Report Designer), which is invoked by clicking the Help button on that dialog, it says in the introductory text that:
The parameters properties that you specify in the Report Parameters
dialog box become part of the report definition. Some properties are
intended for programmatic use only. In contrast with reports that are
processed on a remote report server, a locally processed report does
not have a parameter input area used for selecting or typing parameter
values.
A little testing shows me that the default values specified for the parameters will be used, unless you modify them programmatically. I could not find an explanation on this design decision. If you want to use local processing, and prompt for user input, I would recommend to follow this solution:
I you embed the reports in a ReportViewer Control, you can put it on a page or form and add custom input controls to that page or form to gather report parameters. In the code-behind files, you will then pass the parameter values using code like this:
List<ReportParameter> parameterList = new List<ReportParameter>();
List<string> selectedProductTypes = listboxProductTypes.GetSelectedValues();
ReportParameter productTypes = new ReportParameter("ProductTypes", selectedProductTypes.ToArray(), false);
ReportParameter username = new ReportParameter("Username", "<current user>", false);
parameterList.Add(productTypes);
parameterList.Add(username);
reportViewer.LocalReport.SetParameters(parameterList);
In this example, you can see how to pass a multi-valued parameter, the values of which are taken from a multi-select ListBox.
You can also create a page that has the controls to gather the parameter input, put them in a set session variables and then transfer to the page that has the report viewer.
use object data source and set the parameter source as Session.
The only code you need to write is filling the session variables.
I am looping through the posted values on a form with a view to doing something with them (so don't have access to the controls themselves). This is the process I have to take on this project so that is why I'm doing it this way.
On the form I will have a file upload box but I am not sure how I would upload the file that has been selected from it as I can't just do Control.SaveAs(). When I return the posted value using Request.Form.Item[i] I get the file name I chose but not the full path like I would expect.
Can someone point me in the right direction please?
Thanks.
If you want to manipulate the uploaded files directly, and not through a FileUploader control, you should use the Request.Files collection and not the Request.Form
File Upload controls only pass the file name and the contents. I'm not sure why you would need a folder name, especially since the folder name would be for the client - I can't expect that this would have any value to you since you want to save the file on the server.
As I am unsure of your goals, I would recommend using Server.MapPath("~/Folder") to find a suitable folder to save your uploaded files to