Forms Data Controls :: Conditionally Bind Text Property Of DropDownList
Dec 8, 2010
I'm modifying an existing application. I need to be able to bind the Text property of an asp:DropDownList control to one of two fields when the page is rendered. The existing code is like this:
[Code]....
I've tried to use conditional logic on the .aspx page when setting the Text property, but everything I've tried results in an error. I've also tried using code-behind to set the Tetxt property in the Page_Load event. This doesn't generate an error, but it doesn't set the property either.
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Sep 20, 2015
<?xml version="1.0" encoding="utf-8"?>
<MainConfig>
<WeatherStatus>
<id>Rainy</id>
<name>Rainy</name>
[code]....
I have two dropdownlist , now in one dropdownlist i want to bind only weather status nodes , and in other dropdownlist i want to bind only project classification node.
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May 7, 2015
How to bind two database field in single listbox in display field.
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Mar 11, 2014
How to update each data in gridview from template field textbox?
if select reason is adjust-In then update plus the qty else adjust -Out minus the qty.
<asp:GridView ID="GridView1" HeaderStyle-BackColor="#3A64F2" HeaderStyle-ForeColor="White" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField= "RowNumber" HeaderText="RowNumber" />
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<asp:BoundField DataField= "INV_TYPE" HeaderText="INV_TYPE" ItemStyle-Width="150" />
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[CODE]....
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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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May 7, 2015
I have a gridview that contains columns of electrical specification (value, resistance, etc.). The rows are populated with archival data from previous versions of th same part (rev A, rev B, etc.).
The question is: is there any way for me to review each row and set the font color to red if the value is different from the cell below, or above? This would highlight where changes were made to each individual revision of a part from the previous version.
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Feb 10, 2010
I have a asp.net FormView with a DropDownList for the selection of a month. The FormView is data bound to an ObjectDataSource.
<asp:DropDownList ID="MonthsList" DataSourceID="MonthsListDataSource" DataTextField="Value" DataValueField="Key" SelectedValue='<%# Bind("OrderDate.Month") %>' Width="100" runat="server" />
I like to bind the selected value to the nested property 'Month' of 'OrderDate' as shown above. The property OrderDate is of type DateTime. The error I'm getting while binding to a nested property is:
A call to Bind was not well formatted. Please refer to documentation for the correct parameters to Bind.
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Aug 5, 2010
I'm trying to bind indexed property to the datagrid control.
Here is my class which has a normal property ('p0') and 2 indexed properties ('p1' & 'p2'). I need to bind p1 and p2 as column in the datagrid.
[Code]....
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Apr 9, 2010
I have a database field called ImageLocation, I have the ImageUrl property bound to: Eval("ImageLocation", "{0}")I would like to bind the Visble property to false if the ImageLocation is null data. I can not figure out how to set the control properly, currently the Datalist shows me all the data and when the image location is null it shows me the name of the Hyperlink control which happens to be Hyperlink2.
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Oct 9, 2012
Using dropdown in gridview and bind the values in dropdown then based on dropdown display the value in another column.
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Nov 11, 2010
can we bind any type of System.Collection to DataSource property of a DataGrid ?
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Mar 7, 2011
I need to bind my dropdownlist to my dataset that is returning application specific text values. But for purposes on that page, i need to assign the value to each one starting at 0 to the number of items returned from my dataset..
Example, if my dataset only returns 1 item, the value of that item needs to be 0
[Code]....
If my dataset returns 4 items, the value of those items needs to be 0 thru 3
[Code]....
Is it possible to assign values like that to a dropdownlist from the code behind?
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Nov 16, 2010
Listview ItemTemplate has dropdownlist.
[Code]....
How to bind the dropdownlist to object.Salutation?
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Dec 19, 2010
i have a page for search.and there is abutton when user click on it.result get in dataset.
[Code]....
i have repeater in itemtemplate of repeater i put table and there is lable that i want show hotelname on it.but it has error.my code is:
[Code]....
the error is:DataBinding: 'System.Char' does not contain a property with the name 'hotelname'.
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Jul 12, 2010
I have a dropdownlist in datalist. I use arraylist to bind the datalist. In arraylist it is "DataNew" Class which has the property of DataTable "dt_city". Now I bind the DataTable to dropdownlist
Line73: <tr>
Line 74: <td style="width: 100px; height: 24px">
Line 75: <asp:DropDownList ID="DropDownList1" runat="server"
Line 76: SelectedValue='<%# DataBinder.Eval(((DataNew)Container.DataItem).dt_city,"city") %>'>
Line 77: </asp:DropDownList></td>
But I got the error of:
Server Error in '/AFIRS' Application.
DataBinding: 'System.Data.DataTable' does not contain a property with the name 'city'.
Description:
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: DataBinding: 'System.Data.DataTable' does not contain a property with the name 'city'.
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Mar 28, 2011
How do I bind all my columns name in my database in a dropdownlist?
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Nov 20, 2010
question is same as in thread, but also i would like to see example of this.
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Sep 14, 2010
I have a List<HybridDictionary> _Reasons.
I need to bind the list to a dropdown.
I tried the code as try
{
this.ddlReason.DataSource = _Reasons;
ddlReason.DataValueField = "Key";
ddlReason.DataTextField = "Value";
this.ddlReason.DataBind();
}
catch
{
//Log Entry
}
finally
{
}
But it not work.
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Jun 15, 2010
I am handling the row databound event. I need to bind a dropdownlist which is present only in the EditItemTemplate.
So it is throwing:
DropDownList ddlAccountingPeriod = e.Row.FindControl("ddlAccountingPeriod") as DropDownList;
UIControlHelper.BindApprovalPeriod(ddlAccountingPeriod);
this throws a null exception as the dropdown is not present in the ItemTemplate.
Is there a way to check whether it is itemtemplate or edititemtemplate.
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Aug 21, 2010
I'm trying gridview templateField DropDownList bind with arraylist. When i set bindsource i got this error. "//Error Object reference not set to an instance of an object."
My Sample .aspx
<asp:TemplateField HeaderText="Type">
<FooterTemplate>
<asp:DropDownList ID="_grvcboType" runat="server" Width="117px" DataTextField="Display" DataValueField="Value">
</asp:DropDownList>
</FooterTemplate>
<ItemTemplate>
<asp:Label ID="Label7" runat="server" Text='<%# Bind("Type") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
[Code]....
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Mar 4, 2010
I have a dropdownlist that's being populated from a SQL datasource. I would also like to have a tooltip for each dropdownlist list item on mouse over. I found the example below which adds a title attribute for each list item using the listitem text as a tooltip but I want to make the title/tooltip value another field in the database. In other words,
item.Attributes.Add("title", someotherdatabasefield);
The end result would be something like this where the text for 'title' comes from the database
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True">
<asp:ListItem Text="CompanyName1" Value="1" title="a really great company" />
<asp:ListItem Text="CompanyName2" Value="2" title="a really bad company" />
</asp:DropDownList>
[Code]....
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Oct 28, 2010
I have list of addresses and would like to bind ZIP Id to DropDownList.
when I use SelectedValue property it throw the error: 'DropDownList1' has a SelectedValue which is invalid because it does not exist in the list of items. Parameter name: value.
[Code]....
aspx.cs code:
[Code]....
Classes:
[Code]....
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Oct 29, 2010
I am new to ASP.NET, trying to learn it. I am using ASP.NET 3.5 with VB for scripting. Also read some books. I just can't figure out how to bind a DropDown List inside a Repeater Control. I saw a few examples but none were clear enough and explained all the details. I want to populate the Drop-Down using values from a Database inside the repeater.
I also read this article [URL] but still can't understand how to bind dropdown in a repeater.
I want to display 2 things inside the Repeater Control.
1. User Selected Values (which comes in the form of an Arraylist) from a previous page using "PostBackUrl" method.
2. Then allow users to select values from a Dropdown list corresponding to each design code they selected on previous page. (the dropdown values here must come from a backend db)
Also, I want to control the number or rows displayed inside the repeater control. It should be equal to the number of "design codes" selected by the user on a previous page.
Here is my code so far ....
ASPX Code:
<body>
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Mar 30, 2011
I need to bind drop down list inside InsertItemTemplate in ListView.
[Code]....
but method GetData() never calls. How can I bind DropdownList ?
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Aug 16, 2010
Using Visual Web Developer Express 2010 with ASP.NET 4.0.
I have a FormView and I want to set a default value from the database. I can't get it to bind to the value in the database. My FormView looks like this:
[Code]....
The EditItemTemplate does not even load when I click the edit button on my FormView control, but I don't get an error message either.
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