I am developing a web application with Ext.Net.
How can I bind combobox from database?
This is my query:dynamic getRegions = (
from region in db.Regions
orderby region.RgnName
select region.RgnName);
how to bind values in combobox from database in that combobox my first value should be display as <----select----->, but i have no such values in my database.
View 5 Repliesi want to bind the records from the DB to ajax combobox dynamically based on the serach criteria. the record count may be around 6000. use ajax combobox and show 10 records at a time. how to do this. i am new to ajax combobox.
View 1 Repliesam using combobox in vs 2008 i want to databind to that combobox from database...tables..
View 3 RepliesI have downloaded the ajax control tool kit but i cant make the combobox display data from the db.
From what i read from online resources , it seems my syntax is correct...but data is not displayed!
Here some markup from my page
Â
<%@ Register assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" tagprefix="asp" %>
<asp:ComboBox ID="Supplier" runat="server" style="margin-left: 57px; display: inline;"
Width="245px" DataSourceID="dsSuppliers" DataTextField="SupplierName"
DataValueField="ID" MaxLength="0" AutoCompleteMode="SuggestAppend"></asp:ComboBox>
<asp:SqlDataSource ID="dsSuppliers" runat="server"
ConnectionString="<%$ ConnectionStrings:unrafpl %>"
SelectCommand="SELECT [ID], [SupplierName] FROM [tblSuppliers]">
</asp:SqlDataSource>
I am using AJAX ComboBox control (or I can use simple ASP.NET DropDown Control it does not matter) in my form. What I do is, I bind combo box control to my database and retrieve client names:
[Code]....
But here is the problem. I want First and Last names to go into separate TextBox controls (txtFirstName and txtLastName). Now it inserts Last Name and Firts Name in txtLastName control. At the same time I would really like to keep LastName + FirstName together in Combo Box.
I have the following items bound to my combobox:
Value: 1, Text: SNS
Value: 2, Text: ING
Value: 3, Text: ING
Choosing value 1 results in a SelectedValue of 1
Choosing value 2 results in a SelectedValue of 2
Choosing value 3 results in a SelectedValue of 2
does the combobox has as a disadvantage that the Text has to be unique?
I'm try to add a combobox to my form which i have done and populate it with the infomation i need but i want to stop the user from being able to edit the first 5 character in the textbox part of the combo box( 1 is this possible 2 am i going about it in the right way).
I have 3 columns fro a db to enter ips ie 123.456.7.89 at the start if each number i want (SE1)(SE2)(SE3) which i can do at the momment . So I get in the combobox list 3 items with (SE1)123.456.7.89 OR just (SE1) depending of i a result is returned from the DB. However i don't want the user to be able to edit out the (SE?) part of the sting in the textbox. When editing i've tried used the text change event to try and capture the change and make sure the string.length > 5 , but the event does not fire also when i leave the combobox it it adds to the combox list. If I refersh it goes back to how it should be with only the 3 items.
I have a problem with CascadingDropDown... I have two related comboboxes, where the second is a slave of the first (e.g. country the first, cities the second). What I want is that if I select one country from combobox 1 then the second must be "filtered" by that selection (it should display all the cities inside the selected country, and the actual CascadingDropDown implementation is OK), but if I leave the combobox 1 in the default option (e.g. "Please select a country") I want the second to display all the cities I have in the database. The problem is that when selecting default option for combobox 1 the second combobox is disabled and a postback to my webservice never occurs.
View 3 Repliesin aspx i written as follows
<ajaxToolkit:ComboBox ID="cmbAddressAlias" runat="server" DropDownStyle="Simple" AutoCompleteMode="Suggest" CaseSensitive="false" AutoPostBack="true" RenderMode="Inline" Width="170px" CssClass="cmbProvince" OnSelectedIndexChanged="cmbAddressAlias_SelectedIndexChanged"> </ajaxToolkit:ComboBox>
it binding correctly(datasource dynamically binded) and it raises event too while changing index but it is not raising event when we manually clearing the combobox text..if currently combobox having text "ASP" then i manually select that entire text and using del key i am deleting but it is not raising event for me.. when i change index it automatically raising event...i need to raise event while combobox is empty...
I wonder how to validate if a inserted item in a Combobox exists in a database during postback? If the item.text exists, a errormessage should notify the user that the item already exists in the database. If the item does not exists in the database a inserting should be done.
Should i use the customvalidator and create a servervalidationfunction that searches my databasetable for the item name?
Should i validate inside one of the two ComboBox control events, ItemInserting and ItemInserted?
After validating the existence i would like to validate if the inserting to the database was successfull.
How do you refresh a combo box from clicking on something from another Combobox (using Visual Basic).
I don't want to use a button for this as i know it works that way by using .Databind() on the other combobox.
In access it is so easy by using the click event on a combo box but visual studio does not seem to use it.
I do have combo box on my page where the items are retrieved from database.
I have an link label which leads to new form to add value for corresponding column in database.
After add the value, when i click refresh on my current page, the values in combo box must be updated.Â
 I have used this
 private void button3_Click(object sender, EventArgs e)
{
this.Refresh();
}
in my application i want to bind the data to a div, which is in a datalist so how can i bind the value .
View 2 RepliesI would to like to know about how can i bind the TreeView with multiple tables
E.g.
i have a table
Class -- fields are [id,class]
Term -- fields are [id,classid,terms]
subject -- fields are [id,classid,subject,terms]
topic -- fields are [id,classid,subjectid,termsid,topic]
[all joined with Foreign keys]
my need the following output requirement.
[Code]...
MCA is a parent class and under MCA there are Terms and under Terms there are Subjects and under Subjects there are Topics according to Topics wise. My requirement is when i Clicked on the MCA it will show Terms and after clicked on any Terms it display Subjects and after clicked on the Subject it display Topics and after clicked on topic it must display contents according to topic-wise.
I have this code in the page load...For some reason the dropdown binds to the db, but the gridview that I want to bind is not displayed. What could be the reason for this? C#:
SqlConnection conn = new SqlConnection(GetConnectionString());
conn.Open();
SqlCommand cmd = new SqlCommand("SELECT CompanyName, CompanyID FROM Company ORDER BY CompanyName", new SqlConnection(GetConnectionString()));
SqlCommand cmd2 = new SqlCommand("SELECT p.ProjectName AS ProjectName, p.Status FROM Project p, Company c WHERE c.CompanyID = p.CompanyID AND c.CompanyID = 3", new SqlConnection(GetConnectionString()));
cmd.CommandType = CommandType.Text;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
conn.Close();
company_list.DataSource = ds;
company_list.DataTextField = "CompanyName";
company_list.DataValueField = "CompanyID";
company_list.DataBind();
company_list.Items.Insert(0, "-- Please Select Company --");
cmd2.Connection.Open();
SqlDataAdapter sqlAdapter = new SqlDataAdapter(cmd2);
DataSet ds2 = new DataSet();
sqlAdapter.Fill(ds2);
Gridview1.DataSource = ds2;
Gridview1.DataBind();
cmd2.Connection.Close();
cmd2.Connection.Dispose();
ASP.net:
<asp:gridview ID="Gridview1" runat="server" ShowFooter="True"
AutoGenerateColumns="False" GridLines="None">
<Columns>
<asp:TemplateField HeaderText="Project Name">
<ItemTemplate>
<asp:TextBox Text='<%#DataBinder.Eval(Container.DataItem, "ProjectName") %>' CssClass="input input1" ID="project_name" width="150" runat="server" ReadOnly="True"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="Status">
<ItemTemplate>
<asp:TextBox Text='<%#DataBinder.Eval(Container.DataItem, "Status") %>' CssClass="input input1" ID="status" width="150" runat="server" ReadOnly="True"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:gridview>
Suppose in .aspx page their is dropdown in which i want to bind two coloumn in that dropdown.for example :-
in database their two column of First_name ,Last_name .I want these two columns value come in a single dropdown using C#.
How to bind a div with Database data
View 3 Replieshow to bind database values to a calendar. What i am trying to do is the following. i've got a stored procedure in an sql server database which checks if a backup is done correctly or not with some other information in different collumns. There is one column with the end date and one column with the status of the backup.
what i am trying to do is to bind the calendar so that when the backup finished on lets say 27 th of march and it ended correctly or not i want to see in my calendar on the 27th of march the status information. how is the best way to approach this.
How can I bind data from a database to a ListBox control in ASP.NET?
View 2 RepliesHow to bind Menu and their submenus from database for example like this menu
Home page Departments Contact Us
-Accounting
-IT
-Engineering
i am trying to bind rating control from my database. example like. Orkut Answer streangth. i have three option Yes, No and cant say and according database value, i want to show stranth for that option.
View 2 RepliesI have build a usercontrol in asp.net, and there is a property like the following.
Everything works fine when the bound value is an integer. However, if the bound field return a null from database, it will return a invalid cast error.
change to a nullable int is not desirable because it changes the how programmer work with the control's property in code-behind.
[code]....
Can we bind the database to User control.
View 2 Repliesi try to bind ads from database toAdrotaor controlusing EntityFramwork,but this error comes
[code]...