Gridview updation problem?

Question

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C#

protected void GVVAC_RowUpdating(object sender, GridViewUpdateEventArgs e)
   {
       DataTable dt = new DataTable();
       int st = Convert.ToInt32(GVVAC.DataKeys[e.RowIndex].Values[0].ToString());
       TextBox txtage1 = (TextBox)GVVAC.Rows[e.RowIndex].FindControl("txtage");
       TextBox txtvaccinename1 = (TextBox)GVVAC.Rows[e.RowIndex].Cells[3].Controls[1];
       TextBox txtadmin1 = (TextBox)GVVAC.Rows[e.RowIndex].Cells[4].Controls[1];
       TextBox txtdose1 = (TextBox)GVVAC.Rows[e.RowIndex].Cells[5].Controls[1];

       breederdailypl.Age = Convert.ToInt32(txtage1.Text.ToString());
       breederdailypl.vaccine = txtvaccinename1.Text.ToString();
       breederdailypl.admin = txtadmin1.Text.ToString();
       breederdailypl.dose = txtdose1.Text.ToString();



       breederdailypl.Snum = st;
       dt = breederdailybal.updatevaccine(breederdailypl);
       //chkHatchdetails = objhatcheryBAL.updateHatchMasterdet(objhatcheryPL);
       ScriptManager.RegisterClientScriptBlock(this.Page, this.GetType(), "UpdateDetails", "alert('Update Successful');", true);
       GVVAC.EditIndex = -1;

       grid();





   }

when i edit the textbox and enter the new value ,but new value is not come to the textbox... .please help me

Posted 7-Nov-13 17:35pm

Siva Hyderabad

Updated 7-Nov-13 18:37pm

v2

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Comments

Raajkumar.b 7-Nov-13 23:43pm

Try like This
GridViewRow R = GridView1.Rows[e.RowIndex];
TextBox txtword = (TextBox)R.FindControl("txtage");
string word = txtage.Text;

JoCodes 7-Nov-13 23:55pm

Which textbox?all the textboxs? Use Findcontrol to access the controls which is inside the templatefield of Gridview as Raajkumar commented.Can you post your gridview markup code too on how you have used the edititemtemplatefield

Siva Hyderabad 8-Nov-13 0:10am

<asp:GridView ID="GVVAC" runat="server" DataKeyNames="sno,age,VaccineName,hoconfby,farconfby" AutoGenerateColumns="false"
OnRowDataBound="GVVAC_RowDataBound" OnRowCommand="GVVAC_RowCommand" EmptyDataText="No Records Found"
Width="100%" BorderColor="#BDBDBD" AllowPaging="false" HeaderStyle-BackColor="#04B431"
HeaderStyle-ForeColor="White" onrowupdating="GVVAC_RowUpdating"
onrowcancelingedit="GVVAC_RowCancelingEdit" onrowediting="GVVAC_RowEditing">
<rowstyle backcolor="White" forecolor="#333333">
<HeaderStyle BackColor="#5CB3FF" Font-Bold="True" ForeColor="White" />
<columns>

<asp:TemplateField HeaderText="Age">
<itemtemplate>
<asp:Label ID="lbl_age" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"age") %>'>

<edititemtemplate>
<asp:TextBox runat="server" ID="txtage" Width="70px" MaxLength="8" Text='<%#DataBinder.Eval(Container.DataItem,"age") %>'>

JoCodes 8-Nov-13 1:48am

R u able to get the previous value in the textbox or no value at all?

Siva Hyderabad 8-Nov-13 1:51am

previous value only..

3 solutions

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Anudeep Jaiswal - MCA · Answer 1 · 2013-11-07T17:43:00

Solution 1

I Think On Page Load You Bind Grid..

And Forgot to Check IsPostBack.

Please Check....

Posted 7-Nov-13 17:43pm

Anudeep Jaiswal - MCA

Comments

Siva Hyderabad 7-Nov-13 23:52pm

thanks your reply,i tried with debuging point..but firstly value is not come to the textbox

JoCodes · Answer 2 · 2013-11-07T20:08:00

Solution 2

I would suggest you to use Bind instead of using Eval binding in your template field .

MSDN reference for this .

http://msdn.microsoft.com/en-us/library/ms178366.aspx[^]

Also , try to check the Ispostback condition as Anudeep suggested.

Hope this helps...

Posted 7-Nov-13 20:08pm

JoCodes

C For Code!!! · Answer 3 · 2013-11-07T20:11:00

May be you are filling grid somewhere on page_load.
The problem arises from here, when you click on update button page gets postback and before your update_eventhandler page_load executes it refreshes your grid to previous values. Now when your
update event executes it gets same values which grid is getting from database.
what you can do just put following code in your page load

if(!Page.Ispostback)
{
//call fill grid method from here
}

hope this helps!!!