How do I retrieve TextBox value of a GridView

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The code is just in a Normal WebForm

ASP.NET

<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:BoundField DataField="Subject" HeaderText="Subject" />
<asp:TemplateField HeaderText="Marks">
<ItemTemplate>
    <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>

</Columns>
    </asp:GridView>

This code is in inherited aspx.cs page

C#

protected void Page_Load(object sender, EventArgs e)
    {
        GridView1.DataSource = setSubject();
        GridView1.DataBind();
    }

private DataTable setSubject()
    {
        DataTable dt = new DataTable();
        dt.Clear();
        dt.Columns.Add("Subject");

        DataRow dr = dt.NewRow();
        dr["Subject"] = "English";
        dt.Rows.Add(dr);

        dr = dt.NewRow();
        dr["Subject"] = "Physics";
        dt.Rows.Add(dr);

        dr = dt.NewRow();
        dr["Subject"] = "Chemistry";
        dt.Rows.Add(dr);

        dr = dt.NewRow();
        dr["Subject"] = "Mathematics";
        dt.Rows.Add(dr);
        return dt;
    }


protected void Button1_Click(object sender, EventArgs e)
    {
Double result;
 foreach (GridViewRow grdrow in grd.Rows)
        {
            if (grdrow.RowType == DataControlRowType.DataRow)
            {
                TextBox textBoxValue = (TextBox)grdrow.FindControl("TextBox1");
                result = result + Convert.ToDouble(textBoxValue.Text);
            }
        }
}

I can not retrieve the value of after edited value of textbox using this.

But the code is effective for a different website(project).

Posted 9-Jul-12 3:54am

Kaushik Saha from Kolkata,India

Updated 9-Jul-12 7:10am

v6

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Comments

DamithSL 9-Jul-12 11:17am

are you bind data on page load? can show the page load code and full code of find control?

Kaushik Saha from Kolkata,India 9-Jul-12 12:38pm

yes.Now I clearly describe the total functions.

DamithSL 9-Jul-12 12:40pm

Ok, check my answer.

S@53K^S 9-Jul-12 11:20am

Did you try and fire the DataGrid RowEdit event and after that try and recapture the data for that if so then you will be able to get the data

3 solutions

Solution 1

firstly you are using grdrow instead of GridView1.
apart from this you can try
(TextBox)GridView1.Rows[0].FindControl("TextBox1");

and you want to select row from the grid then try this

(TextBox)GridView1.SelectedRow.Cells[0].FindControl("TextBox1");

hope it'll help.

Posted 9-Jul-12 5:25am

preet88

Solution 2

You can use FindControl method.

Try something like:

C#

// For every row
foreach (GridViewRow item in myGrid.Rows)
{   
    TextBox myTextBox = (TextBox)item.FindControl("myTextBox");
    string text = myTextBox.Text;       
}

Posted 9-Jul-12 5:27am

Sandeep Mewara

Comments

Kaushik Saha from Kolkata,India 9-Jul-12 12:36pm

Before i tried this but not solve.
So,I update the related code clearly.
Thanks try to help me.

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DamithSL · Accepted Answer · 2012-07-09T06:39:00

Solution 3

try adding IsPostBack when you bind data.

C#

private void Page_Load()
{
    if (!IsPostBack)
    {
        GridView1.DataSource = setSubject();
        GridView1.DataBind();
    }
}

Posted 9-Jul-12 6:39am

DamithSL

Comments

Kaushik Saha from Kolkata,India 9-Jul-12 13:52pm

Thanks