Populate sql data value to text box in asp .net?

Question

3.86/5 (3 votes)

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SQL-Server-2012

Hi,
I have a text box named txtItemID. An Sql data base table named Item is used. It has the column named ItemID, which is created by using max(ItemID)+1 value. My requirement is whenever the page load occurs(run my page in asp .net), the max(ItemID)+1 value should be shown in the text box txtItemID. I have done these codes but it doesn't works :

C#

private void BindItemID()
    {
        SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["mydb"].ConnectionString);
        con.Open();
        SqlCommand cmd = new SqlCommand("Select ItemID from Item", con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        DataTable dt = new DataTable();
        da.Fill(dt);
        txtItemID.Text = dt.ToString();
        txtCode.DataBind();     
        
    }

Posted 31-Mar-14 23:05pm

My Doubt

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2 solutions

Solution 2

Hi,
Use like

C#

private void BindItemID()
{
    SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["mydb"].ConnectionString);
    string sItemID = string.Empty;
    try
    {
        con.Open();
        SqlCommand cmd = new SqlCommand("Select max(ItemID)+1 from Item", con);
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        sItemID = Convert.ToString(cmd.ExecuteScalar());
        txtItemID.Text = sItemID.ToString().Trim();
    }
    catch (Exception ex)
    {
    }
    finally
    {
        con.Close();
    }
}

Posted 1-Apr-14 1:36am

Mahesh_Bhosale

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PJ003 · Accepted Answer · 2014-04-01T00:53:00

Solution 1

Will return the last ItemID from table 'Item'

SQL

SELECT IDENT_CURRENT('Item')

Will populate the value to textbox

C#

txtItemID.Text = Convert.ToString(dt.Rows[0]["ItemID"]);

Posted 1-Apr-14 0:53am

PJ003

Updated 1-Apr-14 1:03am

v2