如何在GridView中

Question

問題檢索文本從DB數據和地點最初是我加載頁面與具有1行與具有文本每列的GridView。當我需要檢索時，我需要gridview使行的數目與DB相同，以便它能夠工作。但在GridView未裝有DATAS ... 我工作的代碼....

int rowIndex = 0; 
      ViewState["CurrentTable"] = dt.Tables[1]; 
      LoadGridViewfromDB(); 
      DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"]; 
      if (dtCurrentTable.Rows.Count > 0) 
      { 
       for (int i = 1; i <= dtCurrentTable.Rows.Count; i++) 
       { 
        System.Web.UI.WebControls.TextBox combobox = (System.Web.UI.WebControls.TextBox)gvmonoprixmasters.Rows[rowIndex].Cells[0].FindControl("combo"); 
        System.Web.UI.WebControls.TextBox sizes = (System.Web.UI.WebControls.TextBox)gvmonoprixmasters.Rows[rowIndex].Cells[1].FindControl("sizes"); 
        System.Web.UI.WebControls.TextBox barcodenumber = (System.Web.UI.WebControls.TextBox)gvmonoprixmasters.Rows[rowIndex].Cells[2].FindControl("barcodeno"); 
        System.Web.UI.WebControls.TextBox ratio = (System.Web.UI.WebControls.TextBox)gvmonoprixmasters.Rows[rowIndex].Cells[3].FindControl("ratio"); 
        System.Web.UI.WebControls.TextBox qty = (System.Web.UI.WebControls.TextBox)gvmonoprixmasters.Rows[rowIndex].Cells[4].FindControl("qty"); 
        combobox.Text = dt.Tables[1].Rows[i - 1]["Combo1"].ToString(); 
        sizes.Text = dt.Tables[1].Rows[i - 1]["Sizes"].ToString(); 
        barcodenumber.Text = dt.Tables[1].Rows[i - 1]["Barcode_Number"].ToString(); 
        ratio.Text = dt.Tables[1].Rows[i - 1]["Ratio"].ToString(); 
        qty.Text = dt.Tables[1].Rows[i - 1]["Quantity"].ToString(); 
        rowIndex++; 
       } 
       gvmonoprixmasters.DataSource = dtCurrentTable; 
       gvmonoprixmasters.DataBind(); 
      } 
     } 

protected void LoadGridViewfromDB() 
{ 
    try 
    { 
     DataTable dtCurrentTable =(DataTable)ViewState["CurrentTable"]; 
     if (ViewState["CurrentTable"] != null) 
     { 
      DataTable dt = new DataTable(); 
      DataRow dr = null; 

       dt.Columns.Add(new DataColumn("Col1", typeof(string))); 
       dt.Columns.Add(new DataColumn("Col2", typeof(string))); 
       dt.Columns.Add(new DataColumn("Col3", typeof(string))); 
       dt.Columns.Add(new DataColumn("Col4", typeof(string))); 
       dt.Columns.Add(new DataColumn("Col5", typeof(string))); 
       for (int i = 1; i <= dtCurrentTable.Rows.Count; i++) 
       { 
       dr = dt.NewRow(); 
       dr["Col1"] = dtCurrentTable.Rows[i - 1]["Combo1"].ToString(); 
       dr["Col2"] = dtCurrentTable.Rows[i - 1]["Sizes"].ToString(); 
       dr["Col3"] = dtCurrentTable.Rows[i - 1]["Barcode_Number"].ToString(); 
       dr["Col4"] = dtCurrentTable.Rows[i - 1]["Ratio"].ToString(); 
       dr["Col5"] = dtCurrentTable.Rows[i - 1]["Quantity"].ToString(); 
       dt.Rows.Add(dr); 
      } 
      ViewState["CurrentTable"] = dt; 
      gvmonoprixmasters.DataSource = dt; 
      gvmonoprixmasters.DataBind(); 
     } 
     else 
     { 
      Response.Write("ViewState is null"); 
     } 
    } 
    catch (Exception ee) { } 
} 

Answer 1

在ASPX頁面

<asp:GridView ID="GridView1" runat="server"> 
     <Columns> 
      <asp:TemplateField HeaderText="COl1"> 
       <ItemTemplate> 
        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Eval("col1") %>'></asp:TextBox> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:TemplateField HeaderText="Col2"> 
       <ItemTemplate> 
        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Eval("col2") %>'></asp:TextBox> 
       </ItemTemplate> 
      </asp:TemplateField> 
      <asp:TemplateField HeaderText="Col3"> 
       <ItemTemplate> 
        <asp:TextBox ID="TextBox1" runat="server" Text='<%# Eval("col3") %>'></asp:TextBox> 
       </ItemTemplate> 
      </asp:TemplateField> 
     </Columns> 
    </asp:GridView> 

在aspx.cs頁面使用

GridView1.DataSource = dt.Tables[1]; 
     GridView1.DataBind();