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Old May 23rd, 2011, 07:34 AM
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Default Problem with combobox data binding in window application

Hi all,

I am new in window application in C#. Currently I want to bind the selected SQL data into a combobox. I want to display only the Office name and the officeid will be the value for individual officename.
Here is my code and store procedure below:-

string con = ConfigurationManager.ConnectionStrings["MyDBConnectionString"].ConnectionString;
SqlConnection conn = new SqlConnection(con);
SqlCommand command = new SqlCommand("Office_Select", conn);
SqlDataAdapter adapter = new SqlDataAdapter(command);
DataSet ds = new DataSet();
adapter.Fill(ds, "User");

cmb_Office.DataSource = ds;
cmb_Office.DisplayMember = "OfficeName";
cmb_Office.ValueMember = "ds.OfficeID";

Store procedure:-
Create PROCEDURE [dbo].[Office_Select]

select OfficeName,OfficeID from User_Login

In case of Web Application this methode works well. I do not know why it is not working at all.
Please some one help me in this context.

With regards
Somesh Chatterjee
Old May 23rd, 2011, 07:36 AM
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If this is about a Windows application, I think you're better off posting this in a Win Forms forum, not an ASP.NET forum. If I were you, I'd find an appropriate category here: http://p2p.wrox.com/ and post your question there.


Imar Spaanjaars
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Old May 23rd, 2011, 09:12 AM
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HI there.. once you move.. check this:

cmb_Office.ValueMember = "ds.OfficeID";

should be

cmb_Office.ValueMember = "OfficeID";


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Old November 19th, 2012, 04:35 AM
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Default net grid

Each Windows Form has at least one BindingContext object that manages the CurrencyManager objects for the form. For each data source on a Windows Form, there is a single CurrencyManager object. Because there may be multiple data sources associated with a Windows Form, the BindingContext object enables you to retrieve any particular CurrencyManager object associated with a data source.
For example if you add a TextBox control to a form and bind it to a column of a table (e.g. "Customers.FirstName") in a dataset (e.g. "dsCust"), the control communicates with the BindingContext object for that form. The BindingContext object, in turn, talks to the specific CurrencyManager object for that data association. If you queried the CurrencyManager's Position property, it would report the current record for that TextBox control's binding. In the example below, a TextBox control is bound to the FirstName column of a Customers table on the dsCust dataset through the BindingContext object for the form it is on.

// Simple Data Binding
txtBox.DataBindings.Add("Text",dsCust,"Customers.F irstName");

// Get current Rowposition
CurrencyManager cm = (CurrencyManager)this.BindingContext[dsCust,"Customers"];
long rowPosition = (long)cm.Position;
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