Forms Data Controls :: DropDownList Programaticly?
Mar 7, 2010
I would like to know how i add a column with a DropDownList Programaticly.This is how i create the Columns
[Code]....
In my TemplateField tmpfield i want a DropDownList. How would i do that?
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Sep 30, 2010
I have code, where i add ImageButton to table programaticly and I need to assign event handler to this ImageButton. When I write ASP/HTML code, there is attribute OnCommand, but in C#, there is nothing like this. Just CommandName and CommandAttribute.
ImageButton ib = new ImageButton { CommandName = "Edit", CommandArgument = id.ToString(), ImageUrl = "~/Images/icons/paper_pencil_48.png", AlternateText = "Edit document" };
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Mar 25, 2011
I have a TextBox and a Gridview.
[code]...
Without DataSource, how can i add in my .cs file programaticly just TextBox1.Text to Gridview's first column?
GridView1.Columns[1].ToString() = TextBoke.
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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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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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Mar 8, 2010
I want to making another dropdownlist visible=false when clicking in dropdownlist on the same detailsview?
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Dec 2, 2010
I am using 3 dropdown list in a gridview and the values for the dropdownlist is dynamic from database.based on first dropdown list selected value the values must fill to second dropdown and based on second dropdownlist selected value then items should load to 3rd dropdown and same for 4th dropdown list. Here if i select age,gender,sex, fist name, last name from the template name Human. The first drop down only populate the fields like Age,gender,Sex and so on., When the second dropdown list populate from the fields corresponding Template name Human, Finance, and so on.
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May 7, 2015
I my website i have 2 dopdownlost i want when i change the value of one.. The other one loads data depending on the first one value
the both of the dropdownlists is in ajax update panal and i do have script manager
i used this code but not working
protected void floor_ddl0_SelectedIndexChanged(object sender, EventArgs e)
{
floor_ddl1.DataBind();
}
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Jan 3, 2010
I have a wizard control and I have defined a custom header template for it and I have put a label control inside that header template and I need to access it programaticly at runtime.
How do I get reference to it in the 'ActiveStepChanged' event of the wiard?
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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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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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Dec 17, 2012
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..
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Dec 2, 2010
I have a problem with my dropdownlist on edit he doesn't want to add any of his parameters to the update. I tried controlparameter and normall parameter both didn't work The folowing I have: Dropdownlist with Datasource: I Have a gridview with templatefields: I have the following asp.net code:
[Code]....
I have the following Business Layer where it connects to:
[Code]....
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Mar 15, 2011
I have a dropdownlist and a button(btnSend).
protected void btnSend_Click(object sender, EventArgs e)
{
InsertIntoTemporary();
LoadAddressdetails();
MassSendOut();
}
What i need to do is as follows;
1) Once i select the item in the dropdownlist, it will extract data from my sql query which is :
string mySQL = "SELECT * FROM examtimetable WHERE subject_name= '" + dd_cat.SelectedValue + "'";
Once seleted,it will display everything in a gridview1.
subject_id subject_name admission_no date venue seat_no
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May 24, 2010
I have data coming from two tables with a foreign key relationship - one User table containing users of the web application, and one Page table containing details about pages visited by each user.I would like to be able to view these data in a gridview or the like on a page. It's easy enough to just show the User table data like so (I'm using the Entity Framework and LINQ):
[Code]....
But how can I show the Page details? I'm not bent on any particular way of showing it, but the only idea I've been able to come up with is to have a dropdown list for each user in a column. But I can't figure out how to get the page data into such a dropdown list. The tables are associated with the primary/foreign key UserID.The closest I've come to finding something similar to this is this for Linq2SQL: http://weblogs.asp.net/scottgu/archive/2007/07/16/linq-to-sql-part-5-binding-ui-using-the-asp-linqdatasource-control.aspx , and this using more traditional data access: ttp://www.highoncoding.com/Articles/169_DropDownList_Inside_GridView__Method_1_.aspx . Either way, regardless of data access technology, I can't relate these solutions to my example and get it to work
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Sep 15, 2010
I have a slight issue I awas trying to fix for 2-3 days, but nothing I try works.
The scenario:
DetailsView control in edit mode, I pass parameters to the SqlDataSourceProducts (edit.aspx?id=2) and the data source selects the appropriate data and fills in the DetailsView form.
Except two drop down lists. These two DDLs (DDL2 and DDL3) are dependent on the previous DDL (DDL1) in the DetailsView.
when the selected value of the DDL1 changes, DDL2 and 3 change their lists and get bound to the database.
The problem is: when I edit something from the database, DDL2 and 3 appear empty and when I update any other field and leave these, they get blanked in the database.
My goal is to set the selected value of DDL2 and 3 to the values in the database WHERE ID = QueryStringField="id".
I can go for not binding the data unless the field is changed, but does not sound professional and user friendly.
code:
The SqlDataSource used to select the parameters from the table and populate the DetailsView
[Code]....
The code of the fields that hold the DDLs in the DetailsView control
[Code]....
The codebehind:
[Code]....
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Dec 1, 2010
update database using data from dropdownlist on gridview C#
<asp:GridView ID="GridView" runat="server" AutoGenerateColumns="False"
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Dec 30, 2010
I have a gridview.In Header of gridview i added dropdownlist.
[Code]....
Here the problem is, i am getting selected value in temp variable(if i change to 20,50,100) in dropdown selection event but it is not binding the pagesize for the gridview and also dropdownlist showing the value "10" only after the pageload.
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May 26, 2010
I am populating a dropdownlist in a detailsView on Page_Load using a table adaptor as follows
[Code]....
[Code]....
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Apr 10, 2010
I've got a GridView populated via a SqlDataSource whose Select command is controlled by a DropDownList. This is all working nicely:
How do I support the "All" user choice:
In other words, when the user selects "All" there are no aircraft names that match that so nothing is returned. Instead, I'd like the select statement to skip the WHERE clause in this case and just show everything. Do I need to create a second page for this case or is there a way to programmatically alter the SELECT command or some other way to accomplish this?
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Nov 19, 2010
I have a Gridview and two link button in that GridView , one link button click is to add edit row ( Edit ), one link button click is to select row ( Select ). I have a dropdownlist inside row which selected when i click link button Select in the gridview edit template, as of my business logic i need to show the dropdownlist only when the user clicks Edit button and when the user clicks Select button . That mean when the user clicks Select button then they clicks Edit button on the gridvview i should allow him to edit the dropdownlist (showing the value to the user through a label).
ASPX CODE
[Code].... C#
When I click Select link button , then I click Edit link button . They have errors : Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index" I don't know what error?. How to fix it
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Apr 26, 2010
I'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.
[Code]....
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Jun 24, 2010
when i change page from page1 to page 2 I remember Dropdownlist in session
Session("Dropdownlist")=Dropdownlist
now when i go back to page1 I set the Dropdowlist the way what it was before i left page1
Dropdownlist=Session("Dropdownlist")
Everything its remember but when i load the page with my Dropdownlist again. The selectedindex shows default value in the control Dropdownlist.But it does remmeber old selectedindex.I got it wired with Gridwiew and gridwiew show Data by remmeber old selectedindex. Well generally I like to remember selectedindex when i go to a differente page and when i go back have it set in the control dropdownlist the way when i left the page
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Nov 18, 2010
I have dropdownlist.datasource=from p in db.test select p dropdownlist.databind() My data in database test:
test1
test2
test3
How to add always the first value in DropDownList "---" ? Dropdown looks like this:
---
test1
test2
test3
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