linking two dropdown list using asp.net vb code

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ASP.NET

hello all,

Please provide me code in asp.net vb code for linking two dropdowns

Regards
Ananth

Posted 10-Jun-11 1:58am

ananthnag55

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Vijay Radia · Answer 1 · 2011-06-10T02:01:00

Please Follow Following Steps.

1. Create Function to get Data For First Dropdown.
2. set datatext and datavalue property of dropdown to database table columns.
3. Assign Datasource and call databind property of first dropdown.
4. on selected index change event, get selected value/text from first dropdown and get data for second dropdown using where condition.
5. follow step 2 and 3 for second dropdown.

Savalia Manoj M · Answer 2 · 2011-06-10T02:38:00

Hi...

Try this...

protected void Page_Load(object sender, EventArgs e)
{
DataTable dt = new DataTable();
dt = objDA.GetList();
DropDownList1.DataSource = dt;
DropDownList1.DataBind();

}

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
if (DropDownList1.SelectedIndex > 0)
{

DataTable dt = new DataTable();
dt = objDA.GetList(DropDownList1.SelectedValue);
DropDownList1.DataSource = dt;
DropDownList1.DataBind();
}
}

Sandeep Mewara · Answer 3 · 2011-06-10T05:48:00

Solution 5

Just Google or use CP Search for "Cascading dropdown"

Try, use/implement it. If you face issues while implementing it then do share across your effort with issues.

Posted 10-Jun-11 5:48am

Sandeep Mewara

ananthnag55 · Answer 4 · 2011-06-10T02:04:00

Solution 2

please provide me code for this

Posted 10-Jun-11 2:04am