how to populate a dropdown list from stored procedure using dataset

Question

0.00/5 (No votes)

See more:

Hey everyone!

I am new to this, so I was hoping if someone could point me in the direction of a tutorial or a code sample. I have seen a bunch of stuff on the web, with this particular piece done in VB. I have my stored procedures in SQL & tables in place. I am trying to populate an asp dropdownlist from the records of a stored procedure using dataset. Does anyone know how to do this in C#?

I am using 3 layer architechure

I hope u guys can help me out.
Thanks

I am

Posted 27-Nov-12 20:33pm

msweety

Updated 27-Nov-12 20:41pm

v2

Add a Solution

Comments

sachinkale20 28-Nov-12 8:46am

u want only using dataset or even through reader will also suffice???

2 solutions

Solution 1

This is not the exact solution for your problem but I hope this will help you to get some idea to solve your problem.

This is the SP I used for this sample

SQL

CREATE proc [dbo].[ReadAllImageIDs] as 
SELECT ImageID FROM ImageData 
GO

below is the loadImageIDs method

C#

private void loadImageIDs()
{
    #region Load Image Ids
    SqlConnection con = new SqlConnection(DBHandler.GetConnectionString());
    SqlCommand cmd = new SqlCommand("ReadAllImageIDs", con);
    cmd.CommandType = CommandType.StoredProcedure;
    SqlDataAdapter adp = new SqlDataAdapter(cmd);
    DataTable dt = new DataTable();
    try
    {
        if (con.State == ConnectionState.Closed)
            con.Open();
        adp.Fill(dt);
        if (dt.Rows.Count > 0)
        {
            cmbImageID.DataSource = dt;
            cmbImageID.ValueMember = "ImageID";
            cmbImageID.DisplayMember = "ImageID";
            cmbImageID.SelectedIndex = 0;
        }
    }
    catch (Exception ex)
    {
        MessageBox.Show(ex.Message, "Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
    }
    finally
    {
        if (con.State == ConnectionState.Open)
            con.Close();
    }
    #endregion
}

for more details
Storing and Retrieving Images from SQL Server Using Strored Procedures and C#.net[^]

Thanks

Posted 27-Nov-12 21:05pm

Thilina Chandima

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Mohd. Mukhtar · Accepted Answer · 2012-11-27T21:18:00

Solution 2

Hi,

Try with the below code.

aspx page code for dropdownlist

C#

<asp:dropdownlist id="ddlName" runat="server" datatextfield="<%# Eval("TextFieldColumnName") %>" datavaluefield="<%# Eval("ValueFieldColumnName")%>" xmlns:asp="#unknown">
       
        </asp:dropdownlist>

Code Behind

C#

public DataSet GetItems()
{
    SqlConnection con = new SqlConnection(connectionString);
    SqlCommand cmd = new SqlCommand("procedureName;", con);
    cmd.CommandType = CommandType.StoredProcedure;
    SqlDataAdapter da = new SqlDataAdapter(cmd);
    DataSet ds = new DataSet();
    try
    {
        con.Open();
        da.Fill(ds);
        con.Close();       
    }
    catch (Exception ex)
    {
        //write error message
    }  
     return ds; 
}

bind Dropdown

C#

ddlName.DataSource = GetItems();
ddlName.DataBind();

Posted 27-Nov-12 21:18pm

Mohd. Mukhtar

Comments

msweety 28-Nov-12 5:19am

Hi Mohd,

thanks for the response it helped me...
could you pls let knoe where to write the bind dropdown code?

thanks in advance :-)

Mohd. Mukhtar 28-Nov-12 5:27am

In code behind file.

write the code in Page_Load method with as below.

if(!IsPostback) //This will make sure that only once the below code will be executed.
{
ddlName.DataSource = GetItems();
ddlName.DataBind();
}

msweety 28-Nov-12 5:36am

thanks again could you also pls help in wirting the code under the dropdown list button.?

protected void ddlLobGrpId_SelectedIndexChanged(object sender, EventArgs e)
{

}

Mohd. Mukhtar 28-Nov-12 6:02am

We can not write code here as we don't know functionality, and what do you want to perform here.

msweety 28-Nov-12 6:11am

under .cs page I would like to dynamically fill the dataset with a stored procedure here

Mohd. Mukhtar 28-Nov-12 6:53am

If you are fetching the data form database as per the selected value of dropdown then write your code something like below.

protected void ddlLobGrpId_SelectedIndexChanged(object sender, EventArgs e) {
string selectedValue = ddlLobGrpId.SelectedItem.Value;
DataSet ds = GetDataFromDB(selectedValue);
}

public DataSet GetDataFromDB(string selectedValue)
{
//write your code here to execute SP and return the result
}
But still I am not sure what really you want to do into above method.

msweety 28-Nov-12 8:59am

thanks a lot Mohd it helped me a lot....:-)

Mohd. Mukhtar 28-Nov-12 9:42am

Welcome :)

msweety 30-Nov-12 8:09am

hi mohd,

i want to display the data from database as per the selected value of dropdown.

pls see my code:
.aspx.cs
protected void ddlDisplayName_SelectedIndexChanged(object sender, EventArgs e)
{
AdminActivityBL ObjAdminActivity = new AdminActivityBL();
ObjAdminActivity.GetDisplayNames_Details();
string SelectedValue = ddlDisplayName.SelectedItem.Value;

}
Bussines layer:

public DataSet GetDisplayNamesDetails()
{
AdminActivityDB objAdminActivityDB = new AdminActivityDB();
return objAdminActivityDB.GetDisplayNamesDetails();
}

dataaccess layer:

public DataSet GetDisplayNamesDetails()
{
try
{
Database objDB = new SqlDatabase(ConfigurationHelper.ConnectionString);
using (DbCommand objCMD = objDB.GetStoredProcCommand(Constants.USP_GET_DISPLAYNAMES_DETAILS))
{
DataSet retDS = objDB.ExecuteDataSet(objCMD);
return retDS;
}
}
catch (Exception ex)
{
//EventLog objLog = new EventLog();
//objLog.LogError(ex);

throw ex;
}

}.

is this something right?

:-)

msweety 29-Nov-12 3:20am

hi mohd.. i have populated the dropdown list values from stored proc in database. now i have to store the selected dropdownlist value to database on clicking the add button.

Could you pls help me out..in this

Mohd. Mukhtar 29-Nov-12 4:40am

Write your code like below.

public void button_Click(object sender, EventArg e)
{
string ddlValue = dropDownList.SelectedItem.Value;
//fill all the record.
//Save the record into DB
}

Refer the below link.

http://stackoverflow.com/questions/11352286/save-data-to-sql-db-using-a-class-in-c-sharp

msweety 30-Nov-12 8:46am

hi mohd,

i want to display the data from database as per the selected value of dropdown.

pls see my code:
.aspx.cs
protected void ddlDisplayName_SelectedIndexChanged(object sender, EventArgs e)
{
AdminActivityBL ObjAdminActivity = new AdminActivityBL();
ObjAdminActivity.GetDisplayNames_Details();
string SelectedValue = ddlDisplayName.SelectedItem.Value;

}
Bussines layer:

public DataSet GetDisplayNamesDetails()
{
AdminActivityDB objAdminActivityDB = new AdminActivityDB();
return objAdminActivityDB.GetDisplayNamesDetails();
}

dataaccess layer:

public DataSet GetDisplayNamesDetails()
{
try
{
Database objDB = new SqlDatabase(ConfigurationHelper.ConnectionString);
using (DbCommand objCMD = objDB.GetStoredProcCommand(Constants.USP_GET_DISPLAYNAMES_DETAILS))
{
DataSet retDS = objDB.ExecuteDataSet(objCMD);
return retDS;
}
}
catch (Exception ex)
{
//EventLog objLog = new EventLog();
//objLog.LogError(ex);

throw ex;
}

}.

is this something right?

:-)

Mohd. Mukhtar 3-Dec-12 1:21am

Hi,

Update your code as below.

.aspx.cs
protected void ddlDisplayName_SelectedIndexChanged(object sender, EventArgs e)
{
AdminActivityBL ObjAdminActivity = new AdminActivityBL();
string selectedValue = ddlDisplayName.SelectedItem.Value;
DataSet ds = ObjAdminActivity.GetDisplayNamesDetails(selectedValue);
//Bind ds with gridview or listview to display result on front end.
}