Web Forms :: Formview - Insert Item Template - Fill Various Textfields According To Dropdown List
Mar 26, 2010
I have a web form for handling invoices which has a form view. When I'm in insert item template, I need to have various fields. Some of them are contract number, invoice number, register date and other that are easy to handle. But there is a dropdown list related with a table of prices (the table has price name, price initial payment, number of payments, amount of month fee and so on). So, when the dropdown is selected, fields related with price should get their values from price table, and then the user decides to keep them or type in new values. How can I get it done? Should I use a Dynamic populate extender or type all the code behind using SelectedIndexChanged method to populate price related controls?
I have a formview with various templates set up for a database that has 255 columns. I need the insertitemtemplate to pre-fill values based upon a specific selection by the user (just like the edit item template) but when the template is switched to insertitemtemplate every text box is cleared. The idea is that a new entry is usually made by making minor changes to an existing entry. With 255 fields I don't want to require the user to enter every field when only three or four need to change.
i have a dropdown list in edit mode and read only mode. If users upload pictures, i want them to chose a category for the uploaded pics and display it in a gridview as below.(See Picture below). When i include "SelectedValue='<%# Bind("CategoryID")" in edit and item template mode, i get this error "'PictureReadOnlyCategories' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value "
When i removed the "SelectedValue='<%# Bind("CategoryID")" from edit and item template, i get the result on the pic below(screenshot). If u can see the pic below the category is not selected, it just display the -- No Category -- even when i chose a category for the pic. I want when a pic is uploaded and i category chosen, to display on the gridview. The code for the error message is below:
I have used gridview item template , which has two dropdown list. The first dropdown list is binded from database to the dropdown list. I have using the below code , to show the select message in dropdown list before selecting any item from dropdown list. In first row its show me --Select-- message and my vaues.. if i select some value form dropdownlist and click add new button it will create a new row dynamic then in previous row again it come back --Select-- message. on going to second row. I need to remain first row user selected value on going to next row. The New row will show --select-- message..
I'm using visual web developer and MS.Access and have the following created. 1. A formview control to enter data into the database 2. A File upload control that allows users to upload files. But however i'm unable to include the file upload control in the formview control. How can i achieve this? Below is the code for the page:
Setting up the editItem template of a gridview. I have a template field with a dropdown list for editing. When the gridview goes into edit mode the dropdown list is displayed with all the right options but the current value of the field (pre-editing) is not the selected value of the dropdown list? How do I make that happen? I have a couple fields where the editItem template will use a dropdown list and I'm sure a user will not realize those values have changed and they will just edit what they intended to edit and save the changes, inadvertently also making changes to other fields.
Does anyone know how to do this so when I select something the 1st dropdown and the 2nd one becomes visible and populates list from a Select statement. I really need help on how to do in an aspx and not on the code behind page.
I have ASPxDataView and ASPxRadioButtonList within item template. i also have two SQLDataSource's (first fill ASPxDataView, second ASPxRadioButtonList). They are using other database tables connected with the foreign key. Is there any way to pass parameter to my second sqlDataSource (id) to fill RadioButtonList property ? i mean select * from TABLE2 where id = @id ; (@id is a value from TABLE1 which is a value of column returned by first sqlDataSource)
I have a Formview residing inside am Item Template of a Gridview. The formview is not populating, and I am pretty convinced that I am not passing the parameter properly from the Gridview to the Formview. I have listed the relevant code only, so that you can scan though it easierGridview tag:
Clicking the label of a drop down list, re-sets the selected value to the first item in the list. This has a history of causing data entry problems when users accidently click on the label.
In the below example ddlContactType has a selected value as 'PRIMARY' and whenever i click on the lblContactType Text, the dropdown box Selected value is changing to "Select One" Text.
How to prevent this one. It should be on PRIMARY Only.
Sub PFTFormView_ItemUpdating(ByVal sender As Object, ByVal e As FormViewUpdateEventArgs) Dim PFTObj As New PFT Dim PFTDST As New Data.DataSet Dim newPFTLastName As String = DirectCast(PFTFormView.FindControl("txtPFTLastName"), TextBox).Text Dim newPFTFirstName As String = DirectCast(PFTFormView.FindControl("txtPFTFirstName"), TextBox).Text PFTObj.PFTLastName = newPFTLastName PFTObj.PFTFirstName = newPFTFirstName PFTObj.PFTHome = DirectCast(PFTFormView.FindControl("txtPFTHome"), TextBox).Text If PFTObj.UpdatePFT(Session("PFTId")) Then Me.lblErrorMessage.Text = "PFT Update Successfully" Else ' Me.lblErrorMessage.Text = "PFT Update UnSuccessfully" End If PFTDST = Nothing PFTObj = Nothing end sub
I wish to add a sub to vb file that changes the display value of several asp:panels located in a Formview Item Template. My only question is what is the proper event to run this in. (databound, item created etc...) If it matters this formview appears in a Gridview Item Template.
I have a template field in which I have a drop down as Edit Template.....When I am selecting the drop down the changes are not reflected. How do i need to bind the dropdown as I am soing it to the textbox: MyCode:
I am using C#, Object Data Source, formview and a BLL. I have two drop down lists and two data sources. One populates the other. Drop down list #1 populates Drop Down list # 2 based on its selection . Drop down list # 1 is populated with DataSource #1. Forview is using DataSource #3 to send the ietms. When I add: SelectedValue='<%#Bind("Make_ID") %>', I get the error below:
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control
I have seen a solution online but it is using LINQ and I am not familiar with it. I need to find the selected value of the drop down lists.
How can I use required field validators in the insert item template in a listview control? The empty fields in the insert item template are preventing the user from deleting or updating ay other row.
I would like to set the one template for edit/insert and view in my custom FormView control . But i got these odd exception Unable to cast object of type 'System.Web.UI.LiteralControl' to type 'System.Web.UI.WebControls.Table'.
public class CustomFormView : FormView { [PersistenceMode(PersistenceMode.InnerProperty), TemplateContainer(typeof(FormView), BindingDirection.TwoWay)] public IBindableTemplate FormTemplate { get; set; } protected override void OnInit(EventArgs e) { ChangeMode(FormViewMode.Edit); if (FormTemplate != null) { if (CurrentMode == FormViewMode.Edit) { FormTemplate.InstantiateIn(this); } } base.OnInit(e); } } edited : in the first step , I created the new user control and added a formview ("FV") public partial class Form : UserControl { private IBindableTemplate _template = null; [PersistenceMode(PersistenceMode.InnerProperty), TemplateContainer(typeof(FormView), System.ComponentModel.BindingDirection.TwoWay)] public IBindableTemplate FormTemplate { set;get } protected void Page_Init() { if (FormTemplate != null) { FV.InsertItemTemplate = FV.EditItemTemplate = FormTemplate; if (!IsPostBack) FormTemplate.InstantiateIn(FV); } } }
Now , I want to convert this user control to web control.
I have a drop down list control populated with items and some code to take the currently selected item value. The problem is I only get the value of the first item in the list regardless of what item is actually selected. Here is my code to populate the drop down:
protected void displayCreateCategories() { StoreDataContext db = new StoreDataContext(); var a = from c in db.Categories orderby c.Name select new{catName= c.Name, catId=c.CategoryID}; ddlCategory.DataSource = a; ddlCategory.DataTextField = "catName"; ddlCategory.DataValueField = "catId"; ddlCategory.DataBind(); }
To get the value of the currently selected item which in my case is always of type integer I do label1.text=Convert.toInt32(ddlCategory.SelectedValue); I get the selected value, but it is always for the 1st item in the list. I'm pulling my hair out over this.
i have used one drop down list box...in that ....whn i m running web applicaiton i need to stick the value which i m selected for the movement upto i select the next choice. it is always going to the first value always. i have 40 items in my drop down. whn i select the 5TH item after selecting 5th item it going to first item.
I am using database table as datasource for my dropdownlist. I want to add an extra item in my dropdownlist for example "select country".
how can i do that.. currently my code is:
dropdownlist1.datasource=dt; dropdownlist1.datavaluefield="country_id"; dropdownlist1.datatextfield="country_name"; dt is a datatable , "country_id" & "country_name" are columns