CODEWITHSUNDEEP
c#asp.net
Woody
Woody

Reputation: 53

how to find a label in the itemtemplate on gridview?C# ASP.NET

I have a GridView that bound some data from DB and have a label in the ItemTemplate and EditTextbox in the EditItemTemplate they are in the same TemplateField. In the GridView some user has no data in somewhere field, If I want to insert a data for these user, I need to find GirdView label first and var the edittextbox, when updating I can Compare the value of them , such as the edittextbox value not equals to labeldata value then insert, but I can't find the value of the label when rowupdating or databound of gridview

how can i do it ?

I have try 

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        int rowCount = GridView1.Rows.Count;
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            if (rowCount >= 1)
            {
                Label lbDA_TEL_HK_NO = ((Label)e.Row.FindControl("lblKM_TEL"));
                Session["DA_TEL_HK_NO"] = lbDA_TEL_HK_NO.Text;
            }
        }
    }

It can find all the gridview data but not which I selected

P.S I'm a newbie, please help me

<asp:TemplateField ItemStyle-Width = "150px"  HeaderText = "香港內線">
<ItemTemplate>
    <asp:Label ID="lblHK_TEL" runat="server"
            Text='<%# Eval("[DA_TEL_HK_NO]")%>'></asp:Label>
</ItemTemplate>
<EditItemTemplate>
    <asp:TextBox ID="txtHK_TEL" runat="server" onkeyup="this.value=this.value.replace(/[^0-9]/g,'')"  MaxLength="3"
        Text='<%# Eval("[DA_TEL_HK_NO]")%>'></asp:TextBox>
</EditItemTemplate>

Upvotes: 2

Views: 3520

Answers (2)

H. Herzl
H. Herzl

Reputation: 3228

You can try something like this for read all rows in grid view:

for (var i = 0; i < GridView1.Rows.Count; i++)
{
    var label = GridView1.Rows[i].FindControl("lblKM_TEL") as Label;

    if (label != null)
    {
        // Manipulate label control
    }
}

Or you can gets label from selected row:

var label = GridView1.SelectedRow.FindControl("lblKM_TEL") as Label;

if (label != null)
{
    // Manipulate label control
}

Upvotes: 1

Tummala Krishna Kishore
Tummala Krishna Kishore

Reputation: 8271

From your aspx markup you are using the wrong label id .

you need yo use this label id lblHK_TEL

You code looks as follows after changes

Label lbDA_TEL_HK_NO = ((Label)e.Row.FindControl("lblHK_TEL"));

Upvotes: 1

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