How to insert DataValueField into database.... from gridview ? [Answered]RSS

• • Reply
  akhterr

  Member

  74 Points

  188 Posts

  How to insert DataValueField into database.... from gridview ?

  Aug 06, 2019 11:21 AM|akhterr|LINK

  i am inserting multiple data into gridview from dropdown list ,i have bind dropdownlist data from database where DataTextField and DataValueField  are coming....Now i want to store DatavalueField in session of multiple row of gridview data,,then i insert bulk data into database...

  here is my code

  using System;
  using System.Collections.Generic;
  using System.Linq;
  using System.Web;
  using System.Web.UI;
  using System.Web.UI.WebControls;
  using System.Configuration;
  using System.Data;
  using System.Data.SqlClient;
  
  namespace WebApplication1
  {
      public partial class WebForm1 : System.Web.UI.Page
      {
          SqlConnection con = new SqlConnection("Data Source=DESKTOP-5PJ76B9;Integrated Security=SSPI;Initial Catalog=SPS;MultipleActiveResultSets=True;");
          protected void Page_Load(object sender, EventArgs e)
          {
              if (!IsPostBack)
              {
                  BindGrid();
                  itemload();
              }
          }
  
          private void itemload()
          {
            
              con.Open();
              SqlDataAdapter adpr1 = new SqlDataAdapter("select * from ItemMasterFile ", con);
              DataSet dspr1 = new DataSet();
              adpr1.Fill(dspr1);
              DropDownList1.DataSource = dspr1.Tables[0];
              DropDownList1.DataTextField = "Descriptionitem";
              DropDownList1.DataValueField = "Codeitem";
              DropDownList1.DataBind();
          }
  
          private void BindGrid()
          {
              GridView1.DataSource = DataSource;
              GridView1.DataBind();
          }
  
          private DataTable DataSource
          {
              //-- this is the property that will retain the data source and data will keep on adding in there on button click
              get
              {
                  DataTable dtSource = new DataTable();
                  if (null != Session["__DataSource"])
                      dtSource = Session["__DataSource"] as DataTable;
                  else
                      dtSource = GetDataFromDatabase();
  
                  return dtSource;
              }
  
              set
              {
                  Session["__DataSource"] = value;
              }
          }
  
          private DataTable GetDataFromDatabase()
          {
              //-- here is a sample code, that just generate data for Gridview, you will require to write code here to fetch data from Database.
              DataTable resultDt = new DataTable();
              resultDt.Columns.AddRange(
                  new DataColumn[] {
          new DataColumn("Descriptionitem"),
          new DataColumn("QTY"),
       
              });
  
              for (int i = 0; i < 0; i++)
              {
                  DataRow dr = resultDt.NewRow();
                  //dr["Field1"] = "Field1 " + i.ToString();
                  //dr["Field2"] = "Field2 " + i.ToString();
                  //dr["Field3"] = "Field3 " + i.ToString();
                  resultDt.Rows.Add(dr);
              }
  
              return resultDt;
          }
  
          protected void btnSave_Click(object sender, EventArgs e)
          {
              DataTable dtSource = DataSource;
              DataRow dr = dtSource.NewRow();
              dr["Descriptionitem"] = DropDownList1.SelectedItem.Text.Trim();
  
             // dr["Descriptionitem"] = DropDownList1.Text.Trim();
              dr["QTY"] = txtqty.Text.Trim();
         
  
              dtSource.Rows.Add(dr);
              DataSource = dtSource;
  
              BindGrid();
  
              txtqty.Text = string.Empty;
          }
      }
  }

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• • Reply
  samwu

  Contributor

  2900 Points

  1227 Posts

  Re: How to insert DataValueField into database.... from gridview ?

  Aug 07, 2019 08:47 AM|samwu|LINK

  Hi akhterr,

  According to your description, I made a demo for your reference.

  I put the DatavalueField of dropdownlist in session and bind it to GridView, then convert the session to a datatable and insert the value into the database by traversing the datatable.

  
  The code:

  <div>
              <asp:DropDownList ID="DropDownList1" runat="server"></asp:DropDownList>
              <asp:GridView ID="GridView1" runat="server"></asp:GridView>
              <asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
              <asp:GridView ID="GridView2" runat="server"></asp:GridView>
          </div>
  protected void Page_Load(object sender, EventArgs e)
          {
              if (!IsPostBack)
              {
                  BindDrop();
                  BindGrid();
              }
          }        
          public void BindDrop()
          {
              string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
              using (SqlConnection con = new SqlConnection(constr))
              {
                  using (SqlCommand cmd = new SqlCommand("SELECT CustomerId, Name, Country FROM Customer"))
                  {
                      using (SqlDataAdapter sda = new SqlDataAdapter())
                      {
                          cmd.Connection = con;
                          sda.SelectCommand = cmd;
                          using (DataTable dt = new DataTable())
                          {
                              sda.Fill(dt);
                              DropDownList1.DataSource = dt;
                              DropDownList1.DataTextField = "Name";
                              DropDownList1.DataValueField = "customerId";                           
                              DropDownList1.DataBind();
                          }
                      }
                  }
              }
          }
          public void BindGrid()
          {
              DataTable dt = new DataTable();
              dt.Columns.AddRange(new DataColumn[] { new DataColumn("customerId") });
              foreach (ListItem item in DropDownList1.Items)
              {
                  dt.Rows.Add(item.Value);
                 
              }
              Session["Customers"] = dt;
              GridView1.DataSource = (DataTable)Session["Customers"];
              GridView1.DataBind();
          }
  
          protected void Button1_Click(object sender, EventArgs e)
          {
              DataTable dt = (DataTable)Session["Customers"];
  
              for (int i = 0; i < dt.Rows.Count; i++)
              {
  
                  var a = dt.Rows[i]["customerId"].ToString().Trim();
                  string query = "INSERT INTO ID VALUES(@Id)";
                  string constr = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
                  using (SqlConnection con = new SqlConnection(constr))
                  {
                      using (SqlCommand cmd = new SqlCommand(query))
                      {
                          cmd.Parameters.AddWithValue("@Id", a);
                          cmd.Connection = con;
                          con.Open();
                          cmd.ExecuteNonQuery();
                          con.Close();
                      }
                  }
              }
          }
  

  Best regard,

  Sam

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