c gets the gridview value code share

GridView Settings are as follows:

<asp:GridView ID="GridViewlb" runat="server" AutoGenerateColumns="False" CssClass="tabblue" ShowCellToolTip=" True"
              　　EmptyDataText=" No record yet! " Width="100%"  Height="100%" AllowPaging="True" OnPageIndexChanging="GridViewlb_PageIndexChanging"
              　　DataKeyNames="id" PageSize="26" OnRowCreated="GridViewlb_RowCreated" OnRowDataBound="GridViewlb_RowDataBound"
              　　AllowSorting="True">

            　　<Columns  >
                　　　　<asp:BoundField DataField="id" HeaderText=" Serial number "  />
                　　　　<asp:BoundField DataField="type" HeaderText=" type " />
                　　　　<asp:BoundField DataField="item" HeaderText=" project " ></asp:BoundField>
                　　　　<asp:BoundField DataField="detail" HeaderText=" content " >
                    　　　　　　<ItemStyle Width="100px" />
                    　　　　　　<ItemStyle Width="120px" />
                　　　　</asp:BoundField>
                　　　　<asp:BoundField DataField="basescore" HeaderText=" The basic points " />
                　　　　<asp:BoundField DataField="stdevaluation" HeaderText=" Scoring criteria " />
                　　　　<asp:TemplateField HeaderText=" score " >
                    　　　　　　<ItemTemplate> 
                        　　　　　　　　<asp:TextBox  id="textbox1" runat="server" Text="" Width="80%" Height="24px"></asp:TextBox>  
                    　　　　　　</ItemTemplate>
                    　　　　<ItemStyle Width="50px" />
                　　　　</asp:TemplateField>                   
            　　</Columns>
</asp:GridView>

Get the value of TextBox in GridView:

Obviously here is the template column, which can be used:

string str = ((TextBox)(this.GridView1.Rows[ The line Numbers ].Cells[6].FindControl("textBox1"))).Text.Trim();

If it is not a template column, it can be used

string str = this.GridView1.Rows[ The line Numbers ].Cells[6].Text.Trim();