I'm trying to populate a date from a bound text field in a DetailsView. I keep getting a error when a DBNull is in the column. How do I avoid the DBNull when populating the text field.My code is as follows:
I have three cascading drop down boxes populated by way of a web service. I would like the selection of the third box to then populate the details View based solely on that selection. When I run the page, the DetailsView is populated with every item from the table (using paging) instead of only showing the details of the item selected in drop down. In the database the a field named ItemId is the identity for the table. Am I simply not passing this correctly to the detailsView from the ddl?
I've got a dropdownlist control that the user can select an an employee name and that should then fill in the detailsview control with specific information about that employee.
My dropdownlist control works fine and I do have AutoPostBack set to true. For some reason my detailsview doesn't work. There's no error message. The detailsview control just doesn't show up.
Here's my code:
This is the sqldatasource control for the dropdownlist control:
[Code]....
This is the sqldatasource control for the detailsview control:
I am trying to arrange the information from a SQL record into a 3 column by 3 row table to fit the form presentation that I want. I have placed on the page 3X3 table and then tried to place a detailsview in the first cell for the first picture called P1dv.
I have place a detailsview in the last cell that would control the paging of information called Controldv. I need to fiqure out how to link P1dv paging to Controldv page action. I am using visual web dev. 2005. I am not updating or editing these are read only views.
example of what i need the form output to look like:
But I´m trying to do that programmatically, not with the sqldatasource. So I wrote the method that binds data to Detailsview and I call it in the page_load. The problem is that I have to click two times on the select button to view the detailsview. The first time I click on the select button nothing happens.
I have a gridview with a Select button. Clicking the Select button for a particular item, I need its full details displayed in DetailsView. how I can bind to DetailsView? Here is what I have so far.
I know the back button always presents a problem, but this one doesn't make any sense.
I have a simple details view and a button on a page. The button sends the user to the homepage. I am trying to prevent the user from being able to use the detailsview if they click Back in their browser.
This is the button click event
[code]....
When the button is clicked...oddly the user is sent to the homepage then when they click the browser back button they are sent to previous page with the detailsview still visiible.
I know I am missing something, can someone fill me in?
there is a radio button, a dropdownlist. radiobuttons are OY, OTY,VDA ( in my database there are fields named OY.OTY,VDA) if i select OY in my radio button the data should be displayed from field OY in dropdownlist and if i select OTY in my radio button the data should be displayed from OTY field in dropdownlist is it possible. there is a sqldatasource for dropdownlist .
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:MS16ConnectionString %>" SelectCommand="SELECT DISTINCT OY FROM COURSE_INTAKE"> </asp:SqlDataSource>
THE SELECTED DROPDOWNLIST DATA IS REQUIRDE TO BE DISPLYED IN A GRIDVIEW.
I want to attach a calenderextender to a textbox which is within a detailsview....now i need to specify a TargetControlID for the calenderextender....but the boundfield of a detailsview doesn't have an ID attribute.......so i am unable to set the TargetControlID to the Id of the textbox...how do i go about it?
Suppose I have a DetailsView, which is bound to a SQLDataSource. The underlying table has two columns, an ID and a value. When in display mode, I want to display only the value. When I switch the DetailsView to edit mode, I want the user to edit the value, and not see or edit the ID. Making the ID column not visible solves this, EXCEPT that then the ID value is not stored in the DetailsView so two-way binding does not work, and I can't update the corresponding DB record. How do I do two-way data binding with a DetailsView, but hide the ID column from the user?
I wanna use the DetailsView control without binding it with a datasource (just in insert mode) but the problem is when I try to get the values of the fields throught ItemInserting event handler I found the e.Values property empty however there are some fields.
Note: I wanna use it (The DetailsView control) [instead of allign the fields manually] because there're already a theme for it in whole the system and I don't want to do that again from scratch for custom template.
What I want to achieve is that by changing the assignment in the Page_Load method I can hide / show the Edit button, but that does not work. When playing around in the markup file I can make the button show up or hide, but I can never change it from the code behind file.
I also tried to explicitly call dvwSomeDetailsView.DataBind after setting the property, but this also didn't work. Overriding OnPreRender and placing the code from the Page_Load method in their didn't do anything to improve this either.
Maybe I'm thinking too complicated - shouldn't there be an easy way to set programmatically whether the button should / shouldn't show?
I have a DetailsView Control, inside as a template a TextBox. I need to findout the value for a TextBox when Inserting data Event handler-, _ItemInserting. The script does not work.
protected void uxInsertAuthor_ItemInserting(object sender, DetailsViewInsertEventArgs e) { //// Find control on page TextBox myAuthorProfile = (TextBox)uxInsertAuthorInput.FindControl("uxContentAuthorDisplayer"); // Set a default value in Data Base if field has been left empty (DB field NOT NULL) if (string.IsNullOrEmpty(myAuthorProfile.Text)) { string myAllert = "Field is NULL"; } else { string myAllet = "Field is NOT NULL"; } }
I have a Gridview and when the edit button is clicked the details of that row is displayed using a detailsview. While displaying, I need to find a control in detailsView, and then bind it with a Datasource. First of All I'm not sure about the event to be used but have used DetailsView1_DataBound. However, if I have to find the control using: var control=(ControlType)DetailsView1.Findcontrol("ID"); Always returns null. May be I am not using the right event, and it couldn't find the control at that point.
I am creating a GridView/DetailsView page. I have a grid that displays a bunch of rows, when a row is selected it uses a DetailsView to allow for Insert/Update.
My question is what is the best way to link these? I do not want to reach out to the web service again, all the data i need is in the selected grid view row. I basically have 2 separate data sources that share the same "DataObjectTypeName", the first data source retrieves the data, and the other to do the CRUD.
What is the best way to transfer the Selected Grid View row to the Details View? Am I going to have to manualy handle the Insert/Update events and call the data source myself?
Is there no way to link these two so they use the same data source ?
When I click to edit the First Name, the field Last Name als goes into Edit mode. I just want the field where I clicked the edit button that goes in Edit mode.
I have the following code in my codebehind Page_Load function that sets the default selected value of a dropdownlist in detailsview based on the name of a record returned from a sql data query.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load Me.Page.Title = "Editing record" 'Perform dropdown list population operations Dim myDDL As DropDownList = DetailsView1.FindControl("reqCategoryDropDown") If Page.IsPostBack = False Then
[Code]....
After which I set attempt to set the selected value of the dropdownlist as above. The page is still not setting the selected value.
I have a webform with a gridview displaying records which are selectable thru a "Select" button on the GridView control. Below the GridView, I have a DetailsView control showing details of the selected GridView record. Also, I have a "New" button which allows me to add to the GridView and associated table thru SQL. In the DetailsView, I have a delete button which allows me to delete from the GridView and associated table thru SQL.
The issue I am having is that when I click the "New" button (to add a record), it performs correctly and displays the input-ready DetailsView with 2 fields for input. However, if I cancel that, and click "New" again, the DetailsView does not display at all.I am certain that I am binding the data correctly as I have several tests which implement the same logic with the only difference being that the tests require only one field while I now require 2 fields.
I am accessing a DetailsView from the following event
public void dvDetails_DataBound(Object sender, EventArgs e)
I am casting the sender to my detailsview like so
DetailsView dv = (DetailsView)sender;
Now when I look in "dv" I can see the DataItem property has the data I want in it under a field name, but I dont know how to write the code access the value??
The field name is shown in the dataitem property as "_DTMON_F", I tried to say