I want to use this to insert and edit values from a db. For example when adding a record the user selects 'One Day Shoots' and 1 gets inserted into the database. Then if the user goes to edit the page since the value in the db is 1 then the 'One Day Shoots' is selected.
One way I considered accomplishing this was by using a hidden feild - when the user selects something in the dropdown list the field is updated with the value, then when the user actually adds the record the value in the feild is submitted. I'm pretty sure this would work but is there a better way?
I'm relativley new to ASP and am using VB for the coding. I have a page that has a few fields on it, one being a drop down list that get's populated from a SQL Server.
I used the GUI to generate this form (see below), the connectionstring:Prod1ConnectionString that is stored in the web config file is hard coded. I want to change that I use the connection string that is passed as a Session parameter. I've been looking for hours for an example of how to remove the connectionstring from the web code and place the proper code in code behind script on the load_page event.
I am running a LINQ query which populates a list used by a DropDownList, I need to insert an "Unassigned" value to the list. The function below queries the values correctly from the db but does not insert the "Unaasinged" value to the list.
The simple website I am trying to build is a list of banks with their corresponding website. I also wanted the ability to add banks/website with the use of some text boxes and a button click event. I've got this fully working until I publish it. When I try to run it on the webserver it say it can not find the specified file c:windowssystem32inetservURLs.xml Now I understand the problem I just can not seem to fix it with out hard coding the path of the file into code.
Partial Class _Default Inherits System.Web.UI.Page Protected Sub btnAdd_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAdd.Click ' Load the Document Dim Doc As New XmlDocument Doc.Load("URLs.xml") 'Create a New Element Dim bankNode As XmlNode bankNode = Doc.CreateElement("bank") 'create and add sub elements for this node Dim nameNode, addressNode, dateNode As XmlNode ' nameNode = Doc.CreateElement("name") addressNode = Doc.CreateElement("address") dateNode = Doc.CreateElement("date") bankNode.AppendChild(nameNode) bankNode.AppendChild(addressNode) bankNode.AppendChild(dateNode) 'add the text data nameNode.AppendChild(Doc.CreateTextNode(tbWebsite.Text)) addressNode.AppendChild(Doc.CreateTextNode(tbAddress.Text)) dateNode.AppendChild(Doc.CreateTextNode(DateTime.Today)) 'add the new element to the end of the list Doc.DocumentElement.AppendChild(bankNode) 'save it Doc.Save("URLS.xml") End Sub End Class
I built a crystal report using crystal report 2008, and have it working fine aganist my test db. in my c# code that loads the report I put this in:
[Code]....
but problem is when i pushed this change to production, the report was stilling pulling test data, even though the web.config entry (LocalSqlServer) was updated in production to use production db. Could I have setup the crystal file incorrectly? When I'm creating the crystal file and connecting it to the db, is there something that I need to check or uncheck to tell it I'm going to dynamically supply the db connection rather than having it use the one I used to setup the report?
I would like someone to explain how I can pass a drop down list from the presentation layer to the controller using the Model View Controller Design Pattern from Microsoft in order to bind enum values to it?
As the title says then the question is relative simple however I cant decide whether a resource file with strings in is better than hard-coded strings...
I Have the gridview control with 2 dropdown list and 2 text boxes,When the textbox chnaged event happen 1 row will create and the dropdown back to initial values( its not retaining the selected values),I am binding the control after text changed method,Is there any properties needs to be set or any other way we can retain the values in postbacks?
In this Grid, I set the datasource to some collection that contains a public property called "Data" and do a databind(). Every works as expected.Now let's say I want to set the DataField attribute of the column to a public member, or a property, or some other thing I've computed. What is the easiest way to go about this without creating intermediate objects or adding public properties to the objects in the collection?So what I want to do is something like:
I have a small issue binding the values into a dropdown using LINQ in ASP.NET code-behind.
var clientquer = from i in Entity.New_Bank select i; //var q = (from s in names // select s).Distinct(); // var getlendername = (from db in mortgageentity.New_Lender group db by db.Bank_Name into t select t.Key).ToList(); if (clientquer.Count() > 0) { ddlbankname.DataSource = clientquer.ToList(); ddlbankname.DataValueField = "Bank_ID2"; ddlbankname.DataTextField = "Bank_Name"; ddlbankname.DataBind(); }
It is binding with duplicate values, but I don't want bind duplicate values. I'm trying to solve this by using a group by clause, but it is not working.
Is it possible to bind two separated datasources to one dropdown list such that they are both alphabetically sorted and seprated by some sort of line. I know there is a way to insert elemets manually, but I'm not sure of the 2 separate datasources. I've serached this forum and while there were several posts none of them offered any workable solution.
I have a formview in which I have a dropdown list that displays a list of owners. In case the list does not have the correct owner for the user I have added functionality for them to add a new owner to the database table that populates the list. I did this by including a textbox and an Insert button in a panel. When the user clicks the new owner insert button I would like to re-databind the dropdown list so that they will see the owner they added and be able to select it.
When I add ddl_owners.databind to my button click code it gives me an error. "Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control."
I don't want to re-databind the entire formview because then it deletes all the information on the form that the user has already keyed in.
I have created an asp.net customizable gridview where user will be able to add and delete data. Now I face some proplem with this gridview. now I want to add a dropdown list (which is dynamically bind with database) inside the grid. I created code and it bind well. when the page is post back previous selected dropdown list value lose and set to selectedIndex=0; For this reason I used if(!page.Ispostback) and put the dropdown binding code inside this. Here I faced a problem. The problem is when I want to add data inside grid the dropdownlist missin bind. How can I overcome this problem? For your kind observation I given entire code below:
I have 3 drop down list boxes - One for month, day and year. I'm trying to get the value of what the user selects on those drop down list boxes. I have dynamically populated my drop down list boxes and I'm trying to output the end value on a label
private int month; private int day; private int year; protected void Page_Load(object sender, EventArgs e) { for (month = 0; month <= 12; month++) { DropDownList2.Items.Add(month.ToString()); } for (day = 0; day <= 31; day++) { DropDownList3.Items.Add(day.ToString()); } for (year = DateTime.Now.Year; year <= DateTime.Now.Year + 75; year++) { DropDownList4.Items.Add(year.ToString()); } } protected void Button4_Click(object sender, EventArgs e) { month = ? day = ? year = ? Label7.Text = month + "/" + day + "/" + year;
The problem right now is I can't figure out how to actually retrieve the value the user uses
I'm stuck with a problem to populate a DropDownList control with values from the database using item field template in read only mode. since I'm new to ASP.NET. Below is the code and the error I'm getting:
'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentOutOfRangeException: 'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value
The code for this is :
<asp:SqlDataSource ID="categoriesDataSource" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>" SelectCommand ="SELECT [CategoryID], [Name] FROM [Categories] WHERE ([UserId] = @UserId)"> <SelectParameters>
I am trying to make a simple photo gallery website. Using ASP.NET and C#. Right now I don't have a server set up but I am just using the development one that Visual Studio Starts when you make a website project and run it.
I have a folder on my hard drive that contains an unknown number of images. I want to write a piece of code that will go through each image and add them to the default webpage. I have tried this code but it doesn't work. What am I doing wrong? Should I be using a ListView control or a DataView or something like that? Do I need to add a virtual directory in order to access the images? If so, how do I to that on this test server?
ALSO, how do I set the position and alignment of these pictures? For example, how would I make it so that the pictures are in a line vertically and centered on the webpage?
protected void Page_Load(object sender, EventArgs e) { string[] filesindirectory = Directory.GetFiles(@"C:UsersJordanDesktopWeb Images"); int i = 1; foreach (string s in filesindirectory) { Image img = new Image(); img.ID = "image" + i.ToString(); img.ImageUrl = s; img.Visible = true; Page.Controls.Add(img); i++; } }
