C# - Dropdownlist Is Not Bound In Dim Background?
Oct 12, 2010In my web page I show loading image with dim background. Dropdown list is not bound inside the dim background .In IE only I experience this problem.
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Can someone point me to some resources I can examine to learn how to do this?
If the handler for the selection changing can give me the value of the NEWLY selected item, it should just be a matter of accessing the cell for my BoundColumn in the same row and writing to it. I do not know the syntax to achieve this.
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Mar 25, 2010I thought this would be very simple but I can't get it. I have a dropdownlist bound to a datasource in order to produce a list of items. At the top of the ddl, I want a 'NEW ITEM' entry. It's not showing up.
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Code:
<asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="SQLDataSource1" DataTextField="emp_name" DataValueField="emp_id"></asp:DropDownList>
<asp:SqlDataSource ID="SQLDataSource1" runat="server" ConnectionString="<%$ConnectionStrings:ConnectionString1 %>" SelectCommand="select emp_id,emp_name,status from emp_master"></asp:SqlDataSource>
In this example code, when binding if the status of the employee is OffDuty then it must be highlighted in DropDownList.
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Apr 25, 2010I have a dropdownlist in the edititemtemplate of a detailsview. The dropdownlist is bound with an objectdatasource. The detailsview is bound to a seperate objectdatasource which connects it to the insert method. When the page loads the dropdownlist is bound properly. However, when I make a selection and select insert I get the following error: Could not find a property named 'DeptID' on the type specified by the DataObjectTypeName property in ObjectDataSource 'objCurrentProduct'. I've tried to remove the SelectedValue='<%# Bind("DeptID") %> attribute. I can then insert without an exception being thrown but the selected value of the dropdown is not recognized. Here is the code:
[Code]....
[Code]....
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protected void Page_Load(object sender, EventArgs e)
{
DropDownListTimeZone.DataSource = TimeZoneInfo.GetSystemTimeZones();
DropDownListTimeZone.DataBind();[code]....
It's ok, but I want it to be smarter for those users who aren't in CST. I was hoping there is some way to grab the user's TimeZoneInfo from something like Page.Request.??
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And after the page starts I would like to kick a web service that returns 10 items at a time to fill the list unlit it is completed without lag on the web page.
I could I go and execute my own web service call the set those values, but I can have that run in the background to avoid interupting the User's expereince?
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[Code]....
Do I need to do something on selectedindexchanged to somehow "clear out" the previous datasource? I can't find anything about this online, although one person seemed to suggest it was related to using a master page. (which I am using).
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Feb 15, 2014I have a grid with 5 rows and 5 columns, All containing templetefield(Combobox)I am trying to set the background color of my grid cell(contain combobox) depending upon which item is selected. (again, dependent on item selection, so background color is not permanent). How can i achieve this?
View 1 RepliesForms Data Controls :: Unable To Sort Data-Bound DropDownList When AppendDataBoundItems Is True?
Apr 26, 2010I'm having a problem sorting a dropdown that I've bound to a SQL Server data source. I've narrowed the problem down to the fact that I have a static item at the top of the dropdown with the data-bound items appended afterwards. If I remove the static item (<asp:ListItem Value="-1" Text="All" />) the ORDER BY part of the select clause works fine. How can I get around this issue? What I would like is to have the "All" static item at the top of the list with the data-bound items sorted alphabetically afterwards. I'm using Visual Studio 2010 and ASP.NET 4 if it makes any difference.
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Forms Data Controls :: DropDownList Do Not Have Data Bound?
Feb 22, 2011I got a dropdownlist do not have data bound, but populate the items from an object:
dlEmployees.ClearSelection();
// get employees
StaffBusinessCollection employeeCollection = StaffBusinessCollection.GetEmployees();
foreach (var employeeObject in employeeCollection)
{
ListItem li = new ListItem(employeeObject .EmployeeName, employeeObject .EmployeeID);
dlEmployees.Items.Add(li);
}
Now I want to get the 'Value' (ie.EmployeeID) of the selected employee.
I tried in the SelectedIndexChanged event but does not work, event the event did not get triggered:
protected void dlEmployees_SelectedIndexChanged(object sender, EventArgs e)
{
Label4.Text = dlEmployees.SelectedIndex.ToString();
}
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Apr 19, 2010this is my my code snip
[code]....
I put a textbox and a button to page when user click Button , I want to insert a new row to datagrid assume
TextBox.Text = Vivi
when user click Button
first : I use TextBox.Text to DataBase retrieve data for this No (ex: select Name, Tel from student where No = '" TextBox.Text + "'")
and then I want to add this datarow to my DataGrid
I hope I can get result like this
[code]....
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Mar 17, 2011i want to show a menu in some pages.
the menu is build from db with repeater
[code]....
when i am in "folder/page1.aspx" all the link are ok [URL]. when i'm in a folder "folder/folder2/page1.aspx" the links are [URL]
UPDATED:
i change it to
<a href="<%# VirtualPathUtility.ToAbsolute("~/admin/"+(string)Eval("TD_PageName"))%>"><%# Eval("TD_Name")%></a>
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Jun 23, 2010I have to set a LinkButton's OnClientClick attribute but I don't know what this value is until the LinkButton is bound to. I'm trying to set the value when the repeater binds, but I can't workout how to get the 'boundItem/dataContext' value.
<asp:Repeater ID="Repeater1" runat="server">
<ItemTemplate>
<asp:LinkButton Text="HelloWorld" ID="Hyper1" runat="server" OnDataBinding="Repeater1_DataBinding" >
</asp:LinkButton>
</ItemTemplate>
</asp:Repeater>
protected void Page_Load(object sender, EventArgs e)
{
var list = new List<TestObject>();
list.Add(new TestObject() {TestValue = "testing1"});
list.Add(new TestObject() { TestValue = "testing2" });
list.Add(new TestObject() { TestValue = "testing3" });
this.Repeater1.DataSource = list;
this.Repeater1.DataBind();
}
public void Repeater1_DataBinding(object sender, EventArgs e)
{
var link = sender as HyperLink;
//link.DataItem ???
}
Is there anyway to find out what the current rows bound item is?
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Nov 9, 2010My grid is not binding properly in IE and I found the reason why it is not working. one of my column value in grid is showing video and database value is
<object id='video' width='462' height='407' type='application/x-shockwave-flash'
data='http://view.vzaar.com/286291.flashplayer'>
<param name='movie' value='http://view.vzaar.com/286291.flashplayer'>
<param name='allowScriptAccess' value='always'>
<param name='allowFullScreen' value='true'>
<param name='wmode' value='transparent'>
<param name='flashvars' value='colourSet=blue&brandText=LSAT+Freedom&brandLink=lsatfreedom.com'>
<embed src='http://view.vzaar.com/286291.flashplayer'></embed>
</object>
When I comment to this column while binding, my grid is working fine and showing all next records.
But I want this column.
How to bind <object ....> tag to grid so that a video can be displayed.
C# - Retrieving Substring Of A Bound Value?
May 10, 2010I am binding some data to control, but want to limit the number of character of a specific field to a 30 first characters. I want to do it, if it's possible, on aspx page.
I tried this:
Text='<%# String.Format("{0}", Eval("Title")).Substring(0,30) %> '
But got this error: Index and length must refer to a location within the string. Parameter name: length
C# - Gridview Bound To Filenames In Directory
Feb 9, 2010I'm having some evils trying to get my GridView control to behave. I have the below code, which successfully displays all the files in the directory. However I require two changes, both of which I am struggling with:
a) Currently the URL you get when clicking on the URL field is [URL] (ie my home directory with the filename). What I require is that the 'Display Text' be the filename only, and the URL be my desired text followed by the filename eg: [URL]
b) I want only to see the files that start with a certain prefix eg "Pay". I can do that with something like: string[] filelist = Directory.GetFiles((@"C:MFData","Pay*.*"); but this doesn't like to bind to my Gridview!
const string DocumentFolderPhysicalPath = (@"C:MFData");
const string DocumentFolderUrl = (@"C:MFData"); [URL]; ; // now it is hardcoded but you could retreive it automatically
HyperLinkField hyperLinkField = new HyperLinkField();
hyperLinkField.DataTextField = "Name";
hyperLinkField.DataNavigateUrlFields = new string[] { "Name" };
//Would like this to work!
//HyperLinkField hyperLinkField2 = new HyperLinkField();
//hyperLinkField2.DataTextField = "Destination";
//hyperLinkField2.DataNavigateUrlFields = new string[] { (@"C:MFData") + "Name" };
GridView1.DataSource = GetDocuments(DocumentFolderPhysicalPath);
GridView1.Columns.Add(hyperLinkField);
GridView1.DataBind();
private System.IO.FileInfo[] GetDocuments(string physicalPath)
{
System.IO.DirectoryInfo directory =
new System.IO.DirectoryInfo(physicalPath);
if (directory.Exists)
{
return directory.GetFiles();
}
else
{
throw new System.IO.DirectoryNotFoundException(physicalPath);
}
}
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Jun 24, 2010I want to get the select value from a combobox that is bound to a dataset.For binding the combobox I use:
cboEmployees.DataSource = ds.Tables["employees"];
cboEmployees.ValueMember = "employee_number";
cboEmployees.DisplayMember = "employee_name";
string SelectedValue = cboEmployees.SelectedValue.ToString();
Data Bound Listbox Selectedindex Always -1?
Feb 21, 2010I've got a simple upload form. Here's my code:
[code]....
You are supposed to be able to select which gallery you want to upload a logo image for, and then select your image file and click the upload button. Here's my upload sub:
[code]....
My problem is that the data bound listbox gallerySelect's selectedIndex is always -1. I know its because it's data bound but I don't know what I have to do to be able to get the value.
[code]....