I have an unbound dropdownlist that is populated in my page_load event. I want to retrieve the text of the selection from the dropdownlist. I'm
using dropdownlist.selectedvalue.tostring(), which works on original page_load but not when I make another selection, even though autopostback is set to true. Do i have to write something in the selectedindexchanged event when not databinding?
I ran into a road block and hope someone has the quick answer. Searched the forum found several solutions but none worked for me.
Here's the issue:
Got a listbox set with Multiple selection. I want to get all the Selected values of that list box to use those values to later display into an email. Tried several ways but no luck and just got frustrated.
I have this listview
<asp:ListView ID="ListView1"
runat="server"
onpagepropertieschanging="ListView1_PagePropertiesChanging"
onitemdatabound="ListView1_ItemDataBound">
[Code]....
What I want is to be able to click on the button: btnAddCart and then in the code behind retrieve the value of product name (Eval("Prouct")) and price (%#Eval("Price","{0:#}")%) for that particular row/itemtemplate.
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrict();
}
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here when i click on ALL item from ddlzone1 it just "ALL" item in ddldistrict
i want when i select "ALL" item from ddlzone1 in ddldistrict14 show all data from database
I have two pages manager and user both have drop downs as
Week, Months and Years.
User have to enter some data week wise for each months and Manager have to approve that.
To Approve manager select months and week from dropdown on his own page and then navigate to User page.
How does I should bind the drop down so that if manager select 1st week from it's page and goes to view link of user then in drop down of user selected value shold be the same as selected by Manager on his own page.
On my page, whenever a DetailsView is updated, I must audit the changes into a database. On most pages this works perfect, as there were just textboxes - however on a page I am working on right now, with dropdownlists, my code isn't working.
Basically, what the code does is captures the Updating event of the SqlDataSource, creates a datareader to look at the contents of the row before it's updated, compares the contents to the parameters in the Update query of the SqlDataSource, and if one has changed to log this in a field in the Audit table. An extract of my code is below:
while (reader.Read())
{
for (int i = 0; i < reader.FieldCount; i++)
{
try {
if (reader[i].ToString() != [code].....
When the control is on a dropdownlist, it seems to never go 'into' the IF even though the fields are different. Do I need to do something special to compare the values of dropdownlists? Note I believe the value is stored as an int in my table.
I am creating an MVC project with a table using the JQGrid plugin. I would like to use a DropDownList to allow the user to specify a value, that will be used in an SQL query to retrieve specific data from the table. I.e. user can select a country from the list, and the table will display items only from that country. I cannot figure out how to retrieve the selected item from the DropDownList, within my data bind function for my table, within my controller class.
DropDownList in the View
<%= Html.DropDownList("Countries")%>
Setting up the DropdownList in my controller
//dt is a DataTable which holds the values for my list
List<SelectListItem> countries = new List<SelectListItem>();
for (int i = 0; i < dt.Rows.Count; i++)
[code]....
The problem seems to be that within a JsonResult function I don't have access to the ViewData or my ViewModel, which always seem to be null when I try and access them. I am very new to MVC and web development,
I have a button on the page and a gridview with checkboxes on the first column. The gridview is bound to a List. On buttonClick, I need to retrieve the underlying bound data item (MyEntity) for each selected row. How can I do this? I can't simply recreate MyEntity based on the gridview columns, because I am not displaying all the fields of MyEntity. I need a way to get a hold of MyEntity based on the key (MyEntityId).
View 2 RepliesI am having a problem with disabling DropDownList based on the chice of 1st DropDownList, there is no post back occuring, and it is a template based web app here is the current code:
<script type="text/javascript">
$(function() { var dropDownList1 = $('#<%= ddlUserType.ClientID %>');
var dropDownList2 = $('#<%= ddlMember.ClientID %>'); dropDownList1.change(function(e) {
if ( jQuery("#ddlUserType").val() != "ETOC") dropDownList2.removeAttr('disabled'); e.preventDefault();
else
dropDownList2.removeAttr('enabled'); e.preventDefault(); }
} );
</script>
what is happening now is page is blank and if I remove the above code everything shows, where I am going wrong. here is the plain and final javascript code which worked:
<script language="javascript">
function CheckDropDownState(lstbox)
{
if (lstbox.selectedIndex == 3) { document.forms[0].ddlMember.disabled = 1; }
else { document.forms[0].ddlMember.disabled = 0; }
}
</script>
and thew .aspx code: <asp:dropdownlist id="ddlUserType" runat="server" onclick="CheckDropDownState(this);"></asp:dropdownlist>
what i m trying is i hav two dropdownlists inside the gridview... namely say ddonsiteoffsite and ddhours... now what i want is if the selectedtext of ddonsiteoffsite is "onsite" the ddhours should b disabled... i tried the code snippet but ... its not disabling the ddhours... can someone help me please..
<asp:TemplateColumn HeaderText=" OnSite/OffSite" >
<ItemTemplate>
<asp:DropDownList ID="ddOnsiteOffside" runat="server" onchange="ToggleOnOff(this)">
[code].....
I am having a 2 dropdown list, in the first dropdown I have 3company names,for each company I am having separate tables,every table have a empcode, if the user select the company name in the 1st dropdownlist, as per company selected the 2nd dropdownlist it will fill the list of employee codes as per the selection..
View 1 RepliesI have a unbound checkbox column in the GridView control.
When i try to get the value of checkbox in the C# code the checkstate is always false.
I want to check if the Checkbox is selected in a row and get the values of all the cells in that row.
CheckBox chkSelect= (CheckBox)GridView1.Rows[1].FindControl("chkSelect");
<asp:GridView
runat="server"
ID="GridView1"
AutoGenerateColumns="False"
[Code].....
I am binding months to a list 0-13 items default selection is 0 months duration, and years 0-8 items and 0 years is the default selection.As I know there are always going to be 12 months in a year, I could use selectedvalue or selectedindex without any perceived problem. Is there a reason why I should not use either/or of the two properties to select a list item?
View 2 RepliesMy problem is I need to set selected value of a drop down list to a value I retreive from a database. The example only has a know value.
Below is the HTML and Code.
<asp:DropDownList
id="ddlCatogory1st1"
DataSourceID="srcCatogory1st1"
DataTextField="CategoryName"
DataValueField="CategoryID"
AutoPostBack="true"
Runat="server" />
<asp:sqldatasource id="srcCatogory1st1"
ConnectionString="server=(local);database=db;Trusted_Connection=true"
SelectCommand="SELECT CategoryID, CategoryName FROM Categories WHERE ParentCategoryID is null ORDER BY CategoryID"
Runat="server" ></asp:sqldatasource>
Sub Page_Load()
DISPLAY_CATEGORY()
End Sub
Sub DISPLAY_CATEGORY()
ddlCatogory1st1.DataBind()
ddlCatogory1st1.Items.FindByValue("A").Selected = True
End Sub
When I run this page I get
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
Line 222:
Line 223: Sub DISPLAY_CATEGORY()
Line 224: ddlCatogory1st1.DataBind()
Line 225: ddlCatogory1st1.Items.FindByValue("A10").Selected = True
Line 226: End Sub
Even if I take out the databind I get the same error.
drpdwncity.SelectedItem.Text = READER("CITY").ToString.Trim
i am using the above code
when the dropdown is displayed it shld display the vlaue from the databse , but here it displays the first value instead
How can I save dropdownlist selected value? (mabey into cookie?)I have a language selection dropdown, but on page reload it resets te value.
View 9 RepliesI'm having issues getting the selecteditems and value after Databinding a dropdown list. I have a button event with dropdownlist2.Selecteditem.text, but will always get the "-- Select --" as the SelectedItem.text ?
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I have items in a sql table that i populate a dropdown list with. so on page load the items are sent to dropdown list. I have a button on the page with the dropdown list that onclick it launches another page that allows more items to be added to the database table.
What I want to do is to refresh/update the list of items in the dropdown list when the second page is closed. In addition the last item added to the table will be the selected item in the drop down list.
I am inserting a new states in the table from dropdown list , the dropdown list has new in the list, clicking on new gets me a pop up which takes the new state and inserts in a table. My requirement is I want to get the last inserted state in the dropdownlist and its id to be selected as soon as insertion is done.
The second function is to insert the contact details where i have countryid,stateid,cityid
protected void stateSave(object sender, EventArgs e) {
using (SqlConnection conn = new SqlConnection(cs)) {
SqlCommand cmd = new SqlCommand("newStates", conn);
cmd.CommandType = CommandType.StoredProcedure;
SqlParameter outparm = new SqlParameter("@stateID", SqlDbType.Int);
[Code] ....
I am populating a DataTable and binding it to a GridView's source.
I have a dropdown box in an itemtemplate in the gridview.
I want the dropdown to have 3 options and depending on what is in a column from row in datatable a specific value will be selected.
I was able to do this when I was binding gridview source by looping through SQL but now I that I am putting the results in a datatable I am not sure how to go about it.
I would like to be able to pass a new value into a dropdownlist control from another webpage and cause an autopostback to occur. How can this be done?
View 27 Replieslearning asp.net and prepare my final year project. i've problem in dropdownlist hope i found answer here. I've two dropdown list each consist four listitem as follows
dropdownlist1
uk,usa,india,singapore.
dropdownlist2
uk,usa,india,singapore.
if anyone of the country selected from dropdownlist1 then dropdownlist2 that particular country automatically get masked or readomly
how to get the default value from a dropdownlist when the form load.
View 13 RepliesI have a dropdownbox which does an autopostback when selected index has changed. But the selected value never changed.
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I've many input elements one of which is, a radio button group with Autopostback set to true. After selecting one item from the radio button, the drop down list below fetches values from database and is refreshed. I choose some value in the dropdown list and submit the form. I've many server side validation controls. When I submit the form, if any of the server validation fails, it'll show the error message in the form. But the value I choose in the dropdown list disappears and it shows the first value of the dropdown list.
How to show the selected value in the list after submission of form?
Below is the partial code from my form. When I type anything other than "Hello" is the "Comments" text box, it will show the error message. I know I can use, other validators to check this. But purposely I want to use Customvalidator.
My C# code
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My ASP.net code
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