How to get the values of DataTable in aspx page [Resolved]

Posted by Amatya under ASP.NET on 5/31/2016 | Points: 10 | Views : 3956 | Status : [Member] | Replies : 3

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How to get the values of DataTable in aspx page? I have the DataTable values in .cs page now i want to get that values in aspx page in script? How can I get that

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Posted by: A2H on: 5/31/2016 [Member] [MVP] Silver | Points: 50

0	If you want to access the values in javascript then use a hidden field to pass the value like below .Here we are using Json , hence first we will serialize our datatable values to JSON using Json Serializer and then parse the Json back to array in javascript C#: //Loading dummy data DataTable table = new DataTable(); table.Columns.Add("Column1", typeof(string)); table.Columns.Add("Column2", typeof(string)); table.Columns.Add("Column3", typeof(string)); table.Columns.Add("Column4", typeof(string)); // Here we add five DataRows. table.Rows.Add("Sample1", "Sample2", "", "Sample4"); table.Rows.Add("TestValue1", "TestValue2", "TestValue3", "TestValue3"); //Creating Javascript seralizer object JavaScriptSerializer objjavascriptSerializer = new JavaScriptSerializer(); //Convert the datatable to list var dtlist = (from c in table.AsEnumerable() select new { Column1 = c.Field<string>("Column1"), Column2 = c.Field<string>("Column2"), Column3 = c.Field<string>("Column3"), Column4 = c.Field<string>("Column4") }).ToList(); //Seralize the data and assign it to hidden control HiddenField1.Value = objjavascriptSerializer.Serialize(dtlist); Aspx Page: <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script> <script> $(document).ready(function () { $("#<%=btnSecond.ClientID %>").click(function () { //Parse the Json value var dttable = JSON.parse($("#HiddenField1").val()); //Loop through each values in datatable $(dttable).each(function (index, val) { }) }); }); </script> References: https://msdn.microsoft.com/en-us/library/system.web.script.serialization.javascriptserializer(v=vs.110).aspx Thanks, A2H My Blog Amatya, if this helps please login to Mark As Answer. \| Alert Moderator

If you want to access the values in javascript then use a hidden field to pass the value like below .Here we are using Json , hence first we will serialize our datatable values to JSON using Json Serializer and then parse the Json back to array in javascript
C#:

//Loading dummy data
                DataTable table = new DataTable();
                table.Columns.Add("Column1", typeof(string));
                table.Columns.Add("Column2", typeof(string));
                table.Columns.Add("Column3", typeof(string));
                table.Columns.Add("Column4", typeof(string));
                // Here we add five DataRows.
                table.Rows.Add("Sample1", "Sample2", "", "Sample4");
                table.Rows.Add("TestValue1", "TestValue2", "TestValue3", "TestValue3");

                //Creating Javascript seralizer object
                JavaScriptSerializer objjavascriptSerializer = new JavaScriptSerializer();
                //Convert the datatable to list
                var dtlist = (from c in table.AsEnumerable()
                              select new
                              {
                                  Column1 = c.Field<string>("Column1"),
                                  Column2 = c.Field<string>("Column2"),
                                  Column3 = c.Field<string>("Column3"),
                                  Column4 = c.Field<string>("Column4")
                              }).ToList();
                //Seralize the data and assign it to hidden control
                HiddenField1.Value = objjavascriptSerializer.Serialize(dtlist);

Aspx Page:

 
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
        <script>
            $(document).ready(function () {
                $("#<%=btnSecond.ClientID %>").click(function () {
                    //Parse the Json value
                    var dttable = JSON.parse($("#HiddenField1").val());
                    //Loop through each values in datatable
                    $(dttable).each(function (index, val) {

                    })
                });
            });
          </script>

References:

https://msdn.microsoft.com/en-us/library/system.web.script.serialization.javascriptserializer(v=vs.110).aspx

Thanks,
A2H
My Blog

Amatya, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: A2H on: 5/31/2016 [Member] [MVP] Silver | Points: 25

0	You can use Gridview to display the data from datatable in aspx page. Sample Code: <asp:GridView ID="GridView4" runat="server" AutoGenerateColums="false"> <Columns> <%--Add your columns here--%> </Columns> </asp:GridView> You can use Datasource to assign the datatable to Gridview //Loading dummy data DataTable table = new DataTable(); table.Columns.Add("Column1", typeof(string)); table.Columns.Add("Column2", typeof(string)); table.Columns.Add("Column3", typeof(string)); table.Columns.Add("Column4", typeof(string)); // Here we add five DataRows. table.Rows.Add("Sample1", "Sample2", "", "Sample4"); table.Rows.Add("TestValue1", "TestValue2", "TestValue3", "TestValue3"); //Assigning datasoure to gridview GridView4.DataSource=table; GridView4.DataBind(); Also if you want to display a particular value then use a label control or textbox control <asp:Label ID="Label2" runat="server" Text=""></asp:Label> C#: //Loading dummy data DataTable table = new DataTable(); table.Columns.Add("Column1", typeof(string)); table.Columns.Add("Column2", typeof(string)); table.Columns.Add("Column3", typeof(string)); table.Columns.Add("Column4", typeof(string)); // Here we add five DataRows. table.Rows.Add("Sample1", "Sample2", "", "Sample4"); table.Rows.Add("TestValue1", "TestValue2", "TestValue3", "TestValue3"); Label2.Text=table.Rows[0]["Column1"].ToString(); Thanks, A2H My Blog Amatya, if this helps please login to Mark As Answer. \| Alert Moderator

You can use Gridview to display the data from datatable in aspx page.
Sample Code:

 <asp:GridView ID="GridView4" runat="server" AutoGenerateColums="false">
            <Columns>
                <%--Add your columns here--%>
            </Columns>
        </asp:GridView>

You can use Datasource to assign the datatable to Gridview

//Loading dummy data
                DataTable table = new DataTable();
                table.Columns.Add("Column1", typeof(string));
                table.Columns.Add("Column2", typeof(string));
                table.Columns.Add("Column3", typeof(string));
                table.Columns.Add("Column4", typeof(string));
                // Here we add five DataRows.
                table.Rows.Add("Sample1", "Sample2", "", "Sample4");
                table.Rows.Add("TestValue1", "TestValue2", "TestValue3", "TestValue3");
                //Assigning datasoure to gridview
                GridView4.DataSource=table;
                GridView4.DataBind();

Also if you want to display a particular value then use a label control or textbox control
<asp:Label ID="Label2" runat="server" Text=""></asp:Label>
C#:

//Loading dummy data
                DataTable table = new DataTable();
                table.Columns.Add("Column1", typeof(string));
                table.Columns.Add("Column2", typeof(string));
                table.Columns.Add("Column3", typeof(string));
                table.Columns.Add("Column4", typeof(string));
                // Here we add five DataRows.
                table.Rows.Add("Sample1", "Sample2", "", "Sample4");
                table.Rows.Add("TestValue1", "TestValue2", "TestValue3", "TestValue3");
                
                Label2.Text=table.Rows[0]["Column1"].ToString();

Thanks,
A2H
My Blog

Amatya, if this helps please login to Mark As Answer. | Alert Moderator

Posted by: Muneshs16 on: 6/11/2016 [Member] Starter | Points: 25

0	go to following link http://www.aspdotnet-suresh.com/2012/03/bind-data-and-display-datatable-on-aspx.html Munesh Amatya, if this helps please login to Mark As Answer. \| Alert Moderator

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