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Dynamic TextBox in GridView

Manish Pandey208128-Nov-2014
Hello Frnds
I want to add textboxes in GridView dynamically
and want to fetch entered value on button click
How should i do it ??
.netc# 
Updated on 29-Nov-2014
Manish Pandey

Manish Pandey

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1 Answers

Anonymous User

Anonymous User

29-Nov-2014
hi try this code:

Default.aspx code:

<asp:gridviewID="Gridview1"runat="server"ShowFooter="true"AutoGenerateColumns="false"onrowcreated="Gridview1_RowCreated"OnSelectedIndexChanged="Gridview1_SelectedIndexChanged">
            <Columns>
            <asp:BoundFieldDataField="RowNumber"HeaderText="Row Number"/>
            <asp:TemplateFieldHeaderText="Header 1">
                <ItemTemplate>
                    <asp:TextBoxID="TextBox1"runat="server"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateFieldHeaderText="Header 2">
                <ItemTemplate>
                    <asp:TextBoxID="TextBox2"runat="server"></asp:TextBox>
                </ItemTemplate>
            </asp:TemplateField>
            <asp:TemplateFieldHeaderText="Header 3">
                <ItemTemplate>
                     <asp:TextBoxID="TextBox3"runat="server"></asp:TextBox>
                </ItemTemplate>
                <FooterStyleHorizontalAlign="Right"/>
                <FooterTemplate>
                 <asp:ButtonID="ButtonAdd"runat="server"Text="Add New Row"onclick="ButtonAdd_Click"/>
                </FooterTemplate>
            </asp:TemplateField>
            </Columns>
        </asp:gridview>

Default.aspx.cs  Code:

using System;
using System.Collections;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using System.Collections.Specialized;
using System.Text;
using System.Data.SqlClient;
 
publicpartialclassGridViewWithTextBoxes : System.Web.UI.Page
{
    privatevoid SetInitialRow()
    {
        DataTable dt = newDataTable();
        DataRow dr = null;
        dt.Columns.Add(newDataColumn("RowNumber", typeof(string)));
        dt.Columns.Add(newDataColumn("Column1", typeof(string)));
        dt.Columns.Add(newDataColumn("Column2", typeof(string)));
        dt.Columns.Add(newDataColumn("Column3", typeof(string)));
        dr = dt.NewRow();
        dr["RowNumber"] = 1;
        dr["Column1"] = string.Empty;
        dr["Column2"] = string.Empty;
        dr["Column3"] = string.Empty;
        dt.Rows.Add(dr);
        ViewState["CurrentTable"] = dt;
 
        Gridview1.DataSource = dt;
        Gridview1.DataBind();
    }
 
    privatevoid AddNewRowToGrid()
    {
        int rowIndex = 0;
 
        if (ViewState["CurrentTable"] != null)
        {
            DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
            DataRow drCurrentRow = null;
            if (dtCurrentTable.Rows.Count > 0)
            {
                for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
                {
                    TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("TextBox1");
                    TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("TextBox2");
                    TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[3].FindControl("TextBox3");
 
                    drCurrentRow = dtCurrentTable.NewRow();
                    drCurrentRow["RowNumber"] = i + 1;
                    drCurrentRow["Column1"] = box1.Text;
                    drCurrentRow["Column2"] = box2.Text;
                    drCurrentRow["Column3"] = box3.Text;
 
                    rowIndex++;
                }
                dtCurrentTable.Rows.Add(drCurrentRow);
                ViewState["CurrentTable"] = dtCurrentTable;
 
                Gridview1.DataSource = dtCurrentTable;
                Gridview1.DataBind();
            }
        }
        else
        {
            Response.Write("ViewState is null");
        }
 
        SetPreviousData();
    }
 
    privatevoid SetPreviousData()
    {
        int rowIndex = 0;
        if (ViewState["CurrentTable"] != null)
        {
            DataTable dt = (DataTable)ViewState["CurrentTable"];
            if (dt.Rows.Count > 0)
            {
                for (int i = 1; i < dt.Rows.Count; i++)
                {
                    TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("TextBox1");
                    TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("TextBox2");
                    TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[3].FindControl("TextBox3");
 
                    box1.Text = dt.Rows[i]["Column1"].ToString();
                    box2.Text = dt.Rows[i]["Column2"].ToString();
                    box3.Text = dt.Rows[i]["Column3"].ToString();
 
                    rowIndex++;
 
                }
            }
 
        }
    }
    protectedvoid Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            SetInitialRow();
        }
    }
    protectedvoid ButtonAdd_Click(object sender, EventArgs e)
    {
        AddNewRowToGrid();
    }
    protectedvoid Button1_Click(object sender, EventArgs e)
    {
        int rowIndex = 0;
        StringCollection sc = newStringCollection();
        if (ViewState["CurrentTable"] != null)
        {
            DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
            if (dtCurrentTable.Rows.Count > 0)
            {
                for (int i = 1; i <= dtCurrentTable.Rows.Count; i++)
                {
                    TextBox box1 = (TextBox)Gridview1.Rows[rowIndex].Cells[1].FindControl("TextBox1");
                    TextBox box2 = (TextBox)Gridview1.Rows[rowIndex].Cells[2].FindControl("TextBox2");
                    TextBox box3 = (TextBox)Gridview1.Rows[rowIndex].Cells[3].FindControl("TextBox3");
    
                    sc.Add(box1.Text + "," + box2.Text + "," + box3.Text);
                    rowIndex++;
                }
            }
        }
    }
 
    protectedvoid Gridview1_RowCreated(object sender, GridViewRowEventArgs e)
    {
 
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            Label l = (Label)e.Row.FindControl("Label1");
            if (l != null)
            {
                string script = "window.open('Default.aspx');";
                l.Attributes.Add("onclick", script);
            }
        }
    }
    protectedvoid Gridview1_SelectedIndexChanged(object sender, EventArgs e)
    {
 
    }
}

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