Question about data taken from two columns to a single dropdown list

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Sir,
I have the code for taking data from two columns from the database to a single dropdown list.My code is :

C#

drpMaterialName.DataSource = ClassLibrary1.mainclass.dset("Purchase_Material_Name", "");
            drpMaterialName.DataValueField = "fullname";
            drpMaterialName.DataTextField = "fullname";
            DataBind();

sql code:

SQL

ALTER PROCEDURE Purchase_Material_Name

AS
    select Material_name+''+Size as fullname from Materials
    RETURN

I got vales from two columns to the dropdown. But the thing is i need your help to save these selected data into two columns

Posted 26-Sep-14 20:56pm

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ChauhanAjay · Answer 1 · 2014-09-26T21:27:00

I would suggest that you use some kind of a separator between the two columns

for example change you query to the following
select Material_name+'!'+Size as fullname from Materials

The only thing you need to be careful about is that the separator does not exists in any of the columns. As I don't know your data I have provided a "!" as the separator.
You will be the better judge of the separator.

When you receive the value from the dropdown control you may split the data value at the separator and use these separated values in your insert statement and insert it in the two different columns.

manvendra patel · Answer 2 · 2014-09-26T21:44:00

try this

in your query should be one space between two column name

select Material_name+' '+Size as fullname from Materials

C#

String [] str=drpdownList.SelectedItem.ToString().Split('-');
String str1=str[0].Trim();
String str2=str[1].Trim();

str1 get first column data and str2 to get second column data

read more about split function
http://www.webblogsforyou.com/how-to-split-string-date-into-day-month-year/[^]

Santhosh Babu Mahimairaj · Answer 3 · 2014-09-28T21:40:00

Hi Dude,

Alter your code like this

1)Stored Procedure :

SQL

SELECT
   (ISNULL(Material_name,'')+''+ISNULL(Size,'')) [MaterialNameText],
   (ISNULL(Material_name,'')+'#separator#'+ISNULL(Size,'')) [MaterialNameValue]
   FROM Materials

NOTE: In SQL concordinate try to use isnull

2)In C# Code

C#

drpMaterialName.DataSource = ClassLibrary1.mainclass.dset("Purchase_Material_Name",    "");
        drpMaterialName.DataValueField = "MaterialNameValue";
        drpMaterialName.DataTextField = "MaterialNameText";
        DataBind()

Bind MaterialNameValue in Data value Field (it contain separator)
Bind MaterialNameText in Text Field

C#

String [] strValue=Convert.ToString(drpdownList.SelectedValue).Split('#separator#');
String Material_name=strValue[0].Trim();
String Size=strValue[1].Trim();

Now you can easily store value into db

Note:Try to use Convert.ToString() insted of TOString()

Question about data taken from two columns to a single dropdown list

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