How to get selected value of table name to populate child dropdownlist?

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C#

<select id="allTables" name="SelectedTable" >
    option value="--Select--" selected>Select </option>
    @foreach (string s in res.allTables)
    {
        <option value="@s">@s</option>
    }
</select>

JavaScript

function getTable1Columns() {
           //code? get selected table name and use it to get column names into other list.
    }

Posted 25-Apr-15 22:21pm

Abhinav79

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F-ES Sitecore 26-Apr-15 6:40am

Using ajax? Using form submissions? Using SQL Server? Oracle? Access? MongoDB? ADO.Net? LinqToSQL? nHibernate? Entity Framework? Without knowing anything about the technology you are using it is impossible to answer this question, all you have shown in an html select box.

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Abhinav79 · Answer 1 · 2015-04-26T05:22:00

<pre lang="c#">
string cs = ConfigurationManager.ConnectionStrings["DbConnection"].ConnectionString;
                SqlConnection con = new SqlConnection(cs);
                SqlDataAdapter da = new SqlDataAdapter("spGetAllTables", con);
                DataTable dataTable = new DataTable();

                da.Fill(dataTable);
                List<string> dt = new List<string>();
                for (int i = 0; i < dataTable.Rows.Count; i++)
                {
                    dt.Add(dataTable.Rows[i][0].ToString());
                }
                RES.allTables= dt;

</string></string>

This is how i'm fetching table names. anything now?