Dropdownlist - Get String Value From ASPxComboBox
Apr 27, 2010
I'm trying to extract the selected value from a a DropDownList as a string as follows:
if ((ASPxComboBox1.SelectedItem.Value).ToString = "Selection")
This is not working. if there is a away of getting each selected string extracted?
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Similar Messages:
May 26, 2010
Aspxcombobox populating on the fly works fine with IE, but with others browsers, when using arrow keys for navigation, the second depended control, always has value for the first next and not for the current, so I have a bit of delay.
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Jan 31, 2011
I have aspxcombobox. There are so many items with different lengths. If i select Small ones the combobox width is in minimum size and if i am selecting larger length item combobox width is increasing to fit the item in it. any property to set the combobox width constant for any item.
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Sep 5, 2010
I have two combo and one button. child combo fill on basis of parent combo key value. click on parent combo value will change on child combo,click on button show those combo selected text.I can do it bellow in my syntax.i use north wind database.
<div>
<dx:ASPxComboBox ID="ASPxComboBoxParent" runat="server" AutoPostBack="True" OnSelectedIndexChanged="ASPxComboBoxParent_SelectedIndexChanged"
TextField="ShipName" ValueField="OrderID" ValueType="System.Int32">
</dx:ASPxComboBox>
<dx:ASPxComboBox ID="ASPxComboBoxChild" runat="server" TextField="ProductID" ValueField="OrderID"
ValueType="System.Int32">
</dx:ASPxComboBox>
<dx:ASPxButton ID="ASPxButton1" runat="server" OnClick="ASPxButton1_Click" Text="ASPxButton">
</dx:ASPxButton>
<dx:ASPxLabel ID="ASPxLabelMessage" runat="server">
</dx:ASPxLabel>
</div>
C# syntax
protected void Page_Load(object sender, EventArgs e)
{
if (!this.IsPostBack)
{
NorthwindDataContext db=new NorthwindDataContext();
var r=from p in db.Orders
select p;
ASPxComboBoxParent.DataSource = r;
ASPxComboBoxParent.DataBind();
}
}
protected void ASPxComboBoxParent_SelectedIndexChanged(object sender, EventArgs e)
{
NorthwindDataContext db=new NorthwindDataContext();
int a= Convert.ToInt32( ASPxComboBoxParent.SelectedItem.Value);
var r = from p in db.Order_Details
where p.OrderID == a
select p;
ASPxComboBoxChild.DataSource = r;
ASPxComboBoxChild.DataBind();
ASPxComboBoxChild.SelectedIndex = 1;
}
protected void ASPxButton1_Click(object sender, EventArgs e)
{
ASPxLabelMessage.Text = "Parent is" + Convert.ToString(ASPxComboBoxParent.SelectedItem.Text) + "And child is" + Convert.ToString(ASPxComboBoxChild.SelectedItem.Text);
}
After click the parent combo,child combo fill But click on button always get child combo index=0 value event i change the child combo value .Why not value change on button event?
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Apr 14, 2010
I have a string that contains comma separated values that I want to get into a DropDownList on a View.
Expample:
"Valve, Body, Handle, Cover, None" I'd like each value in that string to appear as a selection choice in a DropDownList, with the KeyValue 1, 2, 3, 4, 5 etc (corresponding the the index location within the string.
Valve = 1
Body = 2
Handle=3
Cover = 4
None = 5
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Oct 18, 2010
Iam using a dropdown list ,in that am having 4 values ,the following are my values
Uk-L1
Us-L1B
Aus-BUssness
Uk-HSMP
and here i need to choose the a particular value as a selected index ,and i did that for a exact value and in my requirement i will pass only the values after that '-' .so that i need get the value to be selected and here am using the following code to select it is not working can any one help for this.
Code:
DropList.SelectedIndex = DropList.Items.IndexOf(DropList.Items.FindByValue("L1"));
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Mar 6, 2010
Trying to add another 2nd dropdownlist to Query String... Below This Query String works Perfectly:
Query = String.Format("SELECT {0} FROM {1} WHERE NACategory = '{2}' ORDER BY {3}", PrimaryKeyColumn, TableName, DDLCategory.SelectedItem.Text, SetSorting())
I've tried to add a 2nd DDLSubCategory.SelectedItem.Text - But its throwing and error message.
Exception of type System.StackOverflowException was thrown.
Query = String.Format("SELECT {0} FROM {1} WHERE NACategory = '{2}' AND NASubCategory = '{3}' ORDER BY {4}", PrimaryKeyColumn, TableName, DDLCategory.SelectedItem.Text,
DDLSubCategory.SelectedItem.Text, SetSorting())
Can Someone take a look I'm not sure how to write (add) 2nd DropdownList (DDLSubCategory.SelectedItem.Text)
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Aug 11, 2010
How do I bind a result from a JSON string to a dropdownlist (I have 2 fields), "NAAM" should be DataTextField and "CODE" should be the DataValueField. Using ddl.Items.Add doesn't do the trick.
string:
{"NAAM":["Drenthe","Flevoland","Friesland","Gelderland","Groningen","Limburg","Noord Brabant","Noord Holland","Overijssel","Utrecht","Zeeland","Zuid Holland"],"CODE":["D","X","B","G","A","K","P","L","E","M","S","H"]}
code:
[Code]....
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Aug 30, 2010
I have ASP .NET page, and VB module. I have DropDownlist in the ASP page that retrieve information from SQL database. I am trying to make a string varaible equal the value of the dropdownlist selected.
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Oct 22, 2010
I'm trying to bind a List<String> to a DropDownList in a user control. I think I'm doing the right thing, but it seems that after my code executes the bindings are cleared. Here's the code for review!
User control:
<asp:DropDownList ID="subjectNameDropDown" runat="server"/>
<asp:DropDownList ID="yearLevelDropDown" runat="server"/>
Auto-generated designed code-behind:
public partial class NewSiteMetadataUserControl {
protected global::System.Web.UI.WebControls.DropDownList subjectNameDropDown;
protected global::System.Web.UI.WebControls.DropDownList yearLevelDropDown;
}
Code-behind:
public partial class NewSiteMetadataUserControl : UserControl
{
protected override void CreateChildControls()
{
subjectNameDropDown = new DropDownList();
yearLevelDropDown = new DropDownList();
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
EnsureChildControls();
// Attempt 1
List<String> subjectNames = GetSubjectValues();
foreach (var subjectName in subjectNames)
subjectNameDropDown.Items.Add(subjectName);
subjectNameDropDown.DataBind();
// Attempt 2
List<String> yearLevels = GetYearLevelValues();
yearLevelDropDown.DataSource = yearLevels;
yearLevelDropDown.DataBind();
}
}
Should this approach work? If it should, how can I debug what happens after the code executes?
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Feb 22, 2010
Trying to Add a Dropdownlist Selection to a Query String. When I use this :
[Code]....
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Feb 19, 2010
I am trying to get the values selected by the user from the dropdownlist into a string..but its only getting the fist value of the dropdownlist,
does anyone knows what i am doing wrong?
string trade = DropDownList1.SelectedValue;
string adress = DropDownList2.SelectedValue;
string code = DropDownList3.SelectedValue.ToString();
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Jul 14, 2010
I have a gridview where I can browse an user's information. Through the gridview I'm also able to edit some of this information. A recent change in my client's needs demands that one of these fields is now a DropDownList. This field represents a user's "schedule" (not literally a schedule but works like one), and the different schedule options to be assigned to a user are shown in the drop down list.
Problem: In the drop down list I want to show list items like "9-12 15-17", "10-14 15-18" so that it is easy for the administrator to tell which schedule he's assigning to an user. However, that shouldn't be their actual value. I need "9-12 15-17" to actually be '1' since this is the schedule ID that I'm trying to pass on to the DB.
Here's what I have so far:
[Code]....
And with this last method I change the selected item's value to the Index. Meaning that if I select "9-12 15-17" which has an Index of 1 in the dropDownList, the actual value is now 1. Again, this is the behavior I expect. My experience with ASP is quite little as I'm new on this, but as far as I know, this only actually updates the string array. How would I go about modifying this to reflect my updates on the database? All input is taken into account.
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Sep 2, 2012
i have 2 DDL in my page that when users select item from ddldistric1 item in ddlcity1 will change these are my code
protected void DDLcity1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrictC();
}
private void BindDistrictC()
[code]...
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Jan 8, 2013
I am having two dropdownlist in my project,one dropdownlist for empid, another dropdownlist for month, if the user select the empid, the values are retrieved in the textbox.
In the second dropdownlist, if the user select the month in the dropdownlist it will display the leave details, its all working fine, if the user again select the first dropdownlist that means empid, I want to show the second dropdownlist as select month, how can do this.....
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Apr 15, 2010
I 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>
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Mar 29, 2011
I have a table and 7 column name.
I bind the 7 column name in one dropdownlist.
Now the problem is,how do I extract the data value in a dropdownlist?
For example,
Dropdownlist contain 7 column name
-subject_name
-subject_code
-venue
-time
-seat_no
-admission_no
-subject_id
when I click the subject_name,I want it to appear in a gridview
Example
Math|9.00-10.00|Hall|18|09090J|...
Below is my current codes which I have a problem.
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "SELECT '" + dd_list.SelectedValue+ "' FROM examtimetable ";
adapSel = new SqlDataAdapter(mySQL, conn);
conn.Open();
DataSet dsSel = new DataSet();
adapSel.Fill(dsSel);
GridView1.DataSource = dsSel;
GridView1.DataBind();
conn.Close();
}
Previously I have bind 7 column name in my dropdownlist
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack == false)
{
SqlConnection conn = new SqlConnection("Data Source= EN\SQLEXPRESS;" + "Initial Catalog=ms;Integrated Security=SSPI");
SqlCommand sqlCmd = new SqlCommand("select column_name from information_schema.columns where table_name='examtimetable' and COLUMN_NAME not like '%ID'", conn);
conn.Open();
SqlDataReader ds;
ds = sqlCmd.ExecuteReader();
dd_list.Items.Clear();
dd_list.DataSource = ds;
dd_list.DataTextField = "Column_Name";
dd_list.DataValueField = "Column_Name";
dd_list.DataBind();
dd_list.Items.Insert(0, "Select Option");
ds.Close();
conn.Close();
}
}
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Nov 15, 2010
i use 2 dropdownlist with 2 object data source first dropdownlist to display departments name using object datasource (field to display DeptName , value of field DeptID)
second dropdownlist to display Employee name but depend on departments (field to display EmpName , value of field EmpID)
how to display employee name in dropdownlist depend on departments name in the other dropdownlist
2 tables
1 table deprtments with column (DeptID , DeptName , DeptDescription)
2 table Employee with column (EmpID , DeptID , EmpName)
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Mar 28, 2011
Currently,below is my code.
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
SqlConnection conn = new SqlConnection("Data Source= E\SQLEXPRESS;" + "Initial Catalog=k;Integrated Security=SSPI");
SqlDataAdapter adapSel;
string mySQL = "select column_name from information_schema.columns where table_name='examtimetable' '" + dd_list + "'";....
I receive an error "Incorrect syntax near 'System.Web.UI.WebControls.DropDownList'."
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Sep 6, 2012
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrict();
}
[Code]......
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
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Aug 12, 2012
i have 3 drop down list in my page
1-ddlzone1
2-ddldistrict1
3-ddlstore1
this is ddlzone1 code
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e) {
DDLstore1.Items.Clear();
DDLstore1.Items.Add(new ListItem("select center", ""));
DDLstore1.AppendDataBoundItems = true;
SqlCommand _cmd = new SqlCommand("selectcenter", _cn);
[CODE].....
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Mar 8, 2010
I want to making another dropdownlist visible=false when clicking in dropdownlist on the same detailsview?
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Dec 9, 2010
I have a gridview with 3 nested dropdownlists in one cell on edit like this:To get the exact fields when the user clicks on edit I used the following code(yes it's messy)
[Code]....
The BLLOnderhoud is a class and the getReserveInfo is used to get the Model - Brand(merk) Information.Since the dropdownlists are nested in the gridview I can't call them directly and they can't call any of my functions.And this is the problem, when I change the dropdownfield Model the Auto field wich is the last dropdown(in the picture is a typo) should be binded like in the following code:
[Code]....
But the dropdownlist onDataBound event can't call any of my functions that are in my class.So my question is how can the onDataBound event of the second dropbox trigger a function? The only thing that the function has to do is to bind the 3rd dropdownlist
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Mar 25, 2011
I had use a combox to let user select staff name and then it will automatically retrive the responsible recommending officer and approving officer to display in other 2 dropdownlist.
my code works fine but when user select staff name each time, the page will reload once to refresh the dropdownlist.
user complaint and don't want the page reload every time, how can i disable the postback? I need to use ajax?
[Code]....
[Code]....
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Jan 11, 2011
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].....
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