添加下拉所選項目的文本以特定列中的GridView

Question

我具有被顯示的結果如下設定

customer |2011 shipped qty|2011 sales price|2012 shipped qty|2012 sales price 

    aa  1      2.00    2     5.50 
    cc  2      3.00    4     6.25 

網格視圖，我具有兩個下拉列表作爲
monthdropdown1和quarterdropdown2

如果用戶爲選擇揚monthdropdown1，在網格中導致它應該顯示作爲

customer|2011 shipped qty|2011 sales price| 2012 shipped qty| 2012 sales price| 
      jan     jan     jan   jan 

    aa  1      2.00    2     5.50 
    cc  2      3.00    4     6.25 

和也相同季度分別

我只需要選擇dropdowntext添加到網格視圖標題列

注：這裏我格列屬性是autogeneratedcolumn =真

請找我的解決方案，我們是否可以添加選定的文本到GridView的列標題，也可以選定文本

我曾嘗試與此代碼在Rowdatabound event，並沒有爲我工作

if (e.Row.RowType == DataControlRowType.Header) 
{ 
    GridViewRow HeaderRow = new GridViewRow(0, 0, DataControlRowType.Header, DataControlRowState.Insert); 
    TableCell HeaderCell2 = new TableCell(); 
    HeaderCell2.Text = (DropDownList1.SelectedItem.Text); 
    HeaderCell2.ColumnSpan = 0; 
    HeaderRow.Cells.Add(HeaderCell2); 
    DataGrid1.Controls[0].Controls.AddAt(0, HeaderRow); 
} 

01添加saperate標題列

請找我任何其他解決方案，如果可能的

HTML

<asp:GridView ID="DataGrid1" Style="visibility: visible" runat="server" AlternatingRowStyle-BackColor="#E9EDF5" 
       Font-Names="Arial" ForeColor="#09538A" Font-Size="12px" BackColor="#ffffff" BorderColor="DarkGray" 
       Font-Bold="true" HeaderStyle-BackColor="#298DC7" EnableViewState="false" CellSpacing="20" 
       CellPadding="10" ShowFooter="false" HeaderStyle-Font-Bold="true" AutoGenerateColumns="True" OnRowDataBound="DataGrid1__RowDataBound"> 
        <RowStyle HorizontalAlign="Right" Height="20px"/> 
        <alternatingrowstyle Height="20px" BackColor="#E9EDF5"/> 
<%--    OnRowCommand="DataGrid1__RowCommand" OnRowDataBound="DataGrid1__RowDataBound">--%> 
       <HeaderStyle Font-Names="Arial;" CssClass="MyHeaderStyle" Font-Size="13px" ForeColor="White" 
        Font-Bold="True" Height="20" BackColor="#298DC7"></HeaderStyle> 
    <AlternatingRowStyle BackColor="#E9EDF5" /> 
      </asp:GridView> 

Answer 1

請點擊此鏈接，希望這會幫助你。

On Button click change header text

如果您仍然面臨着問題，那麼請讓我知道我會爲你創建一個樣本。

在您的代碼：

HTML：

<form id="form1" runat="server"> 
    <div> 
     <asp:GridView ID="DataGrid1" Style="visibility: visible" runat="server" AlternatingRowStyle-BackColor="#E9EDF5" 
      Font-Names="Arial" ForeColor="#09538A" Font-Size="12px" BackColor="#ffffff" BorderColor="DarkGray" 
      Font-Bold="true" HeaderStyle-BackColor="#298DC7" EnableViewState="false" CellSpacing="20" 
      CellPadding="10" ShowFooter="false" HeaderStyle-Font-Bold="true" AutoGenerateColumns="True"> 
      <RowStyle HorizontalAlign="Right" Height="20px" /> 
      <AlternatingRowStyle Height="20px" BackColor="#E9EDF5" /> 
      <%--    OnRowCommand="DataGrid1__RowCommand" OnRowDataBound="DataGrid1__RowDataBound">--%> 
      <HeaderStyle Font-Names="Arial;" CssClass="MyHeaderStyle" Font-Size="13px" ForeColor="White" 
       Font-Bold="True" Height="20" BackColor="#298DC7"></HeaderStyle> 
      <AlternatingRowStyle BackColor="#E9EDF5" /> 
     </asp:GridView> 
     <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged"> 
      <asp:ListItem Text="Jan" Value="0"></asp:ListItem> 
      <asp:ListItem Text="Feb" Value="1"></asp:ListItem> 
      <asp:ListItem Text="Mar" Value="2"></asp:ListItem> 
     </asp:DropDownList> 

     <asp:DropDownList ID="DropDownList2" runat="server" AutoPostBack="true" OnSelectedIndexChanged="DropDownList2_SelectedIndexChanged"> 
      <asp:ListItem Text="Quater1" Value="0"></asp:ListItem> 
      <asp:ListItem Text="Quater2" Value="1"></asp:ListItem> 
      <asp:ListItem Text="Quater3" Value="2"></asp:ListItem> 
     </asp:DropDownList> 

    </div> 

</form> 

.CS：

public partial class _Default : System.Web.UI.Page 
{ 
protected void Page_Load(object sender, EventArgs e) 
{ 
    List<employee> obj = new List<employee>() { 
      new employee(1, "Sunny1"), 
      new employee(2, "Sunny2"), 
      new employee(3, "Sunny3"), 
      new employee(4, "Sunny4"), 
      new employee(5, "Sunny5"), 
      new employee(6, "Sunny6"), 
      new employee(7, "Anny7")}; 
    DataGrid1.DataSource = obj; 
    DataGrid1.DataBind(); 
} 
protected void DropDownList2_SelectedIndexChanged(object sender, EventArgs e) 
{ 
    Changetext(); 
} 
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) 
{ 

    Changetext(); 
} 

private void Changetext() 
{ 
    string str = DropDownList1.SelectedItem.ToString() + " "; 
    str += DropDownList2.SelectedItem.ToString(); 
    if (DataGrid1.Rows.Count > 0) 
    { 
     for (int i = 0; i < DataGrid1.HeaderRow.Cells.Count; i++) 
     { 
      DataGrid1.HeaderRow.Cells[i].Text = DataGrid1.HeaderRow.Cells[i].Text + " " + str; //selectedvalue/text; 

     } 
    } 
} 
} 

MODAL類：

public class employee 
{ 
public int ID { get; set; } 
public string Name { get; set; } 
public DateTime Date { get; set; } 

public employee(int id, string _name) 
{ 
    ID = id; 
    Name = _name; 
    Date = DateTime.Now; 
} 

public employee() 
{ 

} 

} 

使用此代碼，讓我知道。與您的HTML這是工作正常。

Answer 2

假設你的下拉列表看起來是這樣的： -

<asp:DropDownList ID="ddlMonth" runat="server" AutoPostBack="true" 
    OnSelectedIndexChanged="ddlMonth_SelectedIndexChanged" > 
    <asp:ListItem Selected="True" Text="Select" Value="-1"></asp:ListItem> 
    <asp:ListItem Text="January" Value="1"></asp:ListItem> 
    <asp:ListItem Text="February" Value="2"></asp:ListItem> 
</asp:DropDownList> 

你可以操縱這樣的GridView的標題： -

protected void ddlMonth_SelectedIndexChanged(object sender, EventArgs e) 
{ 
    if(ddlMonth.SelectedValue != "-1") 
    { 
     for (int i = 1; i < DataGrid1.HeaderRow.Cells.Count; i++) 
     { 
      DataGrid1.HeaderRow.Cells[i].Text += " " + ddlMonth.SelectedItem.Text; 
     } 
    } 
} 

爲相若方式下拉季度。如果您必須更改標題文本，請考慮使用StringBuilder。

更新：

使用for環代替。我已經從1開始循環，因爲我想跳過第一列。因此你可以操縱循環。