Dropdownlist Not Behaving Properly When Datavaluefield And Datatextfield Are Same?
Mar 24, 2011
I have a dropdownlist for which I am loading data from excel. Excel has 2 columns Product and Email. Data in Product column is binding to DataTextField and Email column to DataValueField. The dropdown works fine when email is different for different product but when email has same value for different product then whatever I select, on postback the selected value changes to the first item of the same email value.
Below are the sample data in Excel to show the behavior of dropdown
Example 1. (Drop down works fine for this example)
Product Email
iPad prashanth364@gmail.com
iPhone 3G prashanth364@yahoo.co.in
iPhone4 prashanth364@in.com
Example 2. (In the example below, whatever I select (iPad or iPhone 3G or iPhone4) on post back the dropdown selected value will be iPad)
Product Email
iPad prashanth364@gmail.com
iPhone 3G prashanth364@gmail.com
iPhone4 prashanth364@gmail.com
Example 3. (In the example below, when I select iPad the dropdown works fine but when I select iPhone 3G or iPhone4 on post back the dropdown selected value will be iPhone 3G. Basically, on selecting iPhone4 here, on post back it shows iPhone 3G)
Product Email
iPad prashanth364@yahoo.co.in
iPhone 3G prashanth364@gmail.com
iPhone4 prashanth364@gmail.com
Below is the function where I am loaidng the data from excel to dropdown private void ExtractFromExcelInitial()
{
// Put user code to initialize the page here
// Create connection string variable. Modify the "Data Source"
// parameter as appropriate for your environment.
string ExcelFilePath = Server.MapPath("~/ProductExcel") + "\ProductEmail.xls";
String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +
"Data Source=" + ExcelFilePath + ";" +
"Extended Properties=Excel 8.0;";
[Code].....
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