Forms Data Controls :: Insert Empty Value Into Listbox As Default
Jan 6, 2011How can I insert an empty value in my dropdownlistbox and have it as a default? I tried .Items.Insert(0, new ListItem("", ""); and it does not work.
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How can I insert an empty value in my dropdownlistbox and have it as a default? I tried .Items.Insert(0, new ListItem("", ""); and it does not work.
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In my detailsview, I have an emptydatatemplate set up to allow users to enter new records. The code works. However, once the record is inserted, the detailsview defaults to a standard insert screen. I know this will cause confusion for the users. I would prefer the detailsview to either show in edit mode or a read-only mode. I have used detailsview.changemode and detailsview.currentmode in the custom sub created for the add new button of the emptydatatemplate- neither of which do what I was hoping. It would be even better if when there was no data, it defaulted to the insert screen (which seems like that should be an easy, no-brainer way for .net to function) but it doesn't. Or, I don't know how to accomplish it.
I don't want to force the user to click cancel after inserting an item through the emptydatatemplate just to be able to use the detailsview for other records.
i have a some Records in My Data table. i want to get Distinct Records so i have used data View for That. when i look in into DataTable.DefaultView it Shows Empty.
i have Cleared the RowFilter of this Default View.
I have two ListBoxes. I can move items from one list box to the other. I have an Insertcommand for inserting added values from the "ActivePrograms" list box to a db.
my problem is that it inserts only one item when sometimes the user added multiple items.
how do I insert all existing items from "ActivePrograms" list box?:
second issue: how do I make sure the insert command go through the list of items in the listbox and makes sure these rows does mot already exsited in the db? in other words insert only NEW values for that 'Id' value
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i was able to implement a gridview with insert, edit and delete features, but I NEED to be able to display an empty row for insert even if the select statement returns no row. How do I do that?
Here is the code I have so far:
<asp:Label ID="Label2" runat="server" Text="Accession # "></asp:Label>
<asp:TextBox runat="server" ID="accession_num" AutoPostBack="True"></asp:TextBox>
<asp:SqlDataSource ID="SqlDataSource2" runat="server"
ConnectionString="<%$ ConnectionStrings:pdmstestConnectionString %>"
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How to display empty GridView to insert new record if no data retreived for some record on the result from data table?Actually i am trying to give a user an option to add recrod from Gridview. On result of some query it is perfectly displaying data and a footer row with the insertion textbox but when there is no data in the gridview it is not displaying. It should display with footer having insert textbox.
View 5 RepliesI have a detailsview in insert mode. I want to prompt the user to enter data in all fields, if left empty. Could someone please find a few minutes to show me how to do it?
View 2 RepliesI have a listbox inside a formview in a details page(master/details). The values for the listbox will come from a lookup table and when the user select one or more values it should be inserted in a table. The process sould be like the following:
The user will select one or multiple values and click on a Select button. Then a label should show the selected values. Then the user will click on the Insert button in the formview to insert it in the database.
I am using DetailsView to INSERT new records. I have a field "Paid Date"(date) that needs to be pre-populated with the current date. 90% of the time, the user will use the default date, however, there are times when the user will need to change the data as needed. I want to add this default in the code-behind. I DO NOT want to use template item.
View 3 RepliesFormview1 datasource ID is SQLTest. When I click New on the form and go into insertmode, is there an easy way to auto file textboxID to the value of the NextIDNumber field ( field 9) from SQLTest datasource?
View 3 RepliesHow do I set the value of a field in a detailsview to the selectedvalue of a gridview on the same page? I am also trying to set today date as value of another field in the detailsview as well as UserID. I wrote the following codebehind for the date setting:
TextBox tb = (TextBox)DetailsView2.FindControl("TextBoxCreDate");
tb.Text=System.DateTime.Now.ToShortDateString();
TextBoxCreDate is a template field in my DetailsView.
Unfortunately, I get a Object reference not set to an instance of an object. Error message.
I'm using a formview in Insert mode with an AccessDataSource. I want to switch to readonly mode upon insertion to let the user confirm the input worked, then give them the option to insert a new record. If I set the DefaultMode to Insert, then after the first record is inserted, I get a new blank insertion form (no confirmation). If I set the DefaultMode to ReadOnly, after insertion, I get a blank form (presumably because I am not on the record just inserted).
How do I get the just inserted record to display? If I need to set the ID of the formview to the just inserted record OnInserted, how do I get that given I'm using an AccessDataSource?
I have 2 dropdownlist in my detailsview that second dropdownlist get thier data based first dropdownlist selecet value;
following error arised:
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control
I solve it by this solution:
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current problem:
when I want to insert new item ( detailsview insert mode), default value of my DropdownList sent to parmlist
i am devalope one webpage it contain one textbox and two listboxes in that user can enter textbox value and select multipule selected values fromlistbox in that how to store database values into one record (i.e database contain 3cloumns in that store in column1:20(textbox value) and clomun2:4,3,5(selected listbox values ) and column3:4,5(selected listbox values)).in that i am using wcf service for inserting method how to pass multipule selected values into services in c
View 1 RepliesI have a web project with more than 100 input boxes , so in every INSERT and UPDATE to sql server in front of sql statement I must put the golden N word, so it will be in UNICODE mode. Do we have some alternative of this? How can i make it in EVERY UPDATE and INSERT to sql server in data layer level- make it like u insert UNICODE (without N word) How can you get MSSQL server to accept Unicode data by default into a VARCHAR or NVARCHAR column?
I know that you can do it by placing a N in front of the string to be placed in the field but to by quite honest this seems a bit archaic in 2008 and particuarily with using SQL Server 2005. Example:
cmd = New SqlCommand(sql, ConnectionFromEnum(whichDatabase))
cmd.Connection.Open()
i = cmd.ExecuteNonQuery()
so....
the question is : Am I suppose to make something with SQLCOMMAND to set- "enter evthng like it is UNICODE, with N auto"? or i must specify UNICODE by default in somewhere else? just to indicate that i already set in web.config
<globalization requestEncoding="utf-8" responseEncoding="utf-8" fileEncoding="utf-8" responseHeaderEncoding="UTF-8" culture="en-GB"/>
So global questions HOW TO MAKE INSERT AND UPDATE Unicode by default in every insert and update methods, without placing N word in front of literal string?
I am designing a program that will let me enter the name of an item to swap and adds the swap to an array list when a button Add is pressed. Once the item is added to the array list a Sub Procedure should be called which displays the contents of the array list in a list box.
The system will also allow me to remove items from the array list using a Remove button
followed by updating array list.
I have done some part which puts item into the listbox1 which i named lstSwapList.I would need some assistance on the Sub Procedure to display the Value or Description on the other listbox2 which i have also named lstContent,if a value is selected from the listbox1.
I would also want to know how to update the Listbox content,However i hv added a sample of the way i guess it may be.
Any complete solution from anybody on the Sub Procedure and the Update Swap procedure will be greately appreciated.
The script below is what i have done so far.
Partial Class _Default
Inherits System.Web.UI.Page
Protected Sub lstContent_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstContent.SelectedIndexChanged
End Sub
Protected Sub lstSwapList_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles lstSwapList.SelectedIndexChanged
End Sub
Protected Sub btnAddSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnAddSwap.Click
Dim SwapValue As String = "Sixty Pounds"
Dim Counter As Integer = 8
Dim SwapN0 As Integer
lstSwapList.Items.Add(SwapValue)
lstSwapList.Items.Add(Counter)
lstSwapList.Items.Add(New ListItem("300", "1"))
lstSwapList.Items.Add(New ListItem("ASP.Net", "2"))
lstSwapList.Items.Add(New ListItem("Programming", "3"))
SwapN0 = lstSwapList.SelectedValue
For Counter = 0 To -1
SwapN0 = lstContent.Items.Count
Next
End Sub
Protected Sub btnDeleteSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnDeleteSwap.Click
lstSwapList.Items.Remove(lstSwapList.SelectedValue)
End Sub
Protected Sub btnUpdateSwap_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnUpdateSwap.Click
End Sub
End Class
=======================================
Sub UpdateSwap(ByVal valueA As String, ByVal ValueBAs String, ByVal ValueC As Integer, ByVal ValueD As Date)
I have a page that has a formview. Right now, I can only get it to default to the select view with an option at the bottom of the results to click New... allowing to insert a new record. I'd like to default to the insert view. How do I do
View 3 RepliesI have a gridview with two bound fields. On clicking a button i want to display the values in first row of gridview in two textboxes. But if gridview cell is empty i am getting the text in textbox to which the value of cell is given as -' 'i know my problem will be solved if i use the template fields instead. But i want a solution while maintaining the bound fields ,if any.
View 2 RepliesIm working with the following example and it works fine; i was wondering how to add / save data to another field at the same time:
I would like to add data to ImageID and PageID when the button is clicked... I can't seem to get the selectedvalue of the PageID from the dropdownlist..
Private Function GetConnectionString() As String
System.Configuration.ConfigurationManager.ConnectionStrings("ConnectionString2").ConnectionString
End Function
Private Sub InsertRecords(sc As StringCollection)
Dim conn As New SqlConnection(GetConnectionString())
Dim sb As New StringBuilder(String.Empty)
For Each item As String In sc
Const sqlStatement As String = "INSERT INTO Display_Logo (ImageID) VALUES"
sb.AppendFormat("{0}('{1}'); ", sqlStatement, item)
Next
Try
conn.Open()
Dim cmd As New SqlCommand(sb.ToString(), conn)
cmd.CommandType = CommandType.Text
cmd.ExecuteNonQuery()
Page.ClientScript.RegisterClientScriptBlock(GetType(Page), "Script", "alert('Records Successfuly Saved!');", True)
Catch ex As System.Data.SqlClient.SqlException
Dim msg As String = "Insert Error:"
msg += ex.Message
Throw New Exception(msg)
Finally
conn.Close()
End Try
End Sub
Protected Sub Button1_Click(sender As Object, e As EventArgs)
Dim sc As New StringCollection()
For Each item As ListItem In ListBox1.Items
If item.Selected Then
sc.Add(item.Text)
End If
Next
InsertRecords(sc)
End Sub
I have two dropdown lists ddlstate and ddldistricts onchange of ddlstates I am displaying the districts. Here my requirement is to make the default seleted district as "Warangal" i.e I need to highlight this list item
View 1 RepliesWhen I click on the Alphabets it will show the details of a player...however, when that particular letters has no details of the player..I want to show."No results can be found"..Is there anyway to do it?
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
ViewState["CurrentAlphabet"] = "ALL";
this.GenerateAlphabets();
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I have a listbox which populated from using a datatable. I have a Add button in my page. On clicking the add button I want to insert a blank row in the listbox. This can be done easily by
ListBox_Admin.Items.Add("");
after this is done I want to select this item as in setfocus on this item.How do I do this.
I am inserting mortgage loan scenarios in via GridView table. Let's say $100K loan with FICO score 700 in state of MN.
Sometimes I want to apply the same scenario to multiple states rather than Inserting one row at a time. I figured a Listbox with SelectionMode="Multiple" option would be to way to go.
Here is some code snippets:
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I am making a student registration form. For photo upload i want that when user open registration form then bydefault image should be shown and if user does not upload any image then by default image should be inserted in database but if user upload the image then that image should save in database.
For photo upload i have taken this code
<asp:Image ID="UserImage" runat="server" Width="140px" ImageUrl="~/images/default.gif" />
<asp:FileUpload ID="FileUpload1" runat="server" />
<asp:Button ID="btnUpload" runat="server" Text="Upload"
CausesValidation="false" onclick="btnUpload_Click" />
I'm trying to populate 1000 ListItems in a ListBox.
how to do it. Currently only 100 items are being displayed even though I set the capacity of the ListBox to 1000.
Below is sort of how my code looks like. :)
listBox.Items.Capacity = 1000;
foreach(entity ent in enitityCollection)
{
ListItem listItem = new ListItem();
listItem.Value = ent.Id.ToString();
listItem.Text = ent.Name;
listBox.Items.Add(listItem);
}
entityCollection has 989 records in it.
Code does not generate any error. only that at the end of the loop I only get 100 items mapped to my ListBox.
Is this how the ListBox is designed for?