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我有一些疑问这是我对 aspx 页面和 .cs 页面的编码如何实现以下目标为了它

<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>

<asp:GridView ID="GridView1" runat="server" >
<Columns>
<asp:TemplateField HeaderText="8-14">
<ItemTemplate>
<asp:TextBox ID="TxtWeek2" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>

在 .CS 页面中

protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DropDownList1.Items.Add("Select");
DropDownList1.Items.Add("January");
DropDownList1.Items.Add("February");
DropDownList1.Items.Add("March");
DropDownList1.Items.Add("April");
DropDownList1.Items.Add("May");

SqlConnection cn = new SqlConnection("Data Source=192.169.10.22;Initial Catalog=SHRICITYUNO;User ID=uno;Password=uno");
SqlCommand cmd = new SqlCommand();
cn.Open();
cmd = new SqlCommand("SELECT Week1 FROM Finman_FundPlan", cn);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
GridView1.DataSource = ds;
GridView1.DataBind();
}

}


protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
string s = DropDownList1.SelectedItem.Text.ToString();
if (DropDownList1.SelectedItem.Text == "January")
{
this.GridView1.Columns[0].HeaderText = "";
this.GridView1.Columns[0].HeaderText = "29-31";
}
else if (DropDownList1.SelectedItem.Text == "February")
{
this.GridView1.Columns[0].HeaderText = "";
this.GridView1.Columns[0].HeaderText = "-";
}
else if (DropDownList1.SelectedItem.Text == "March")
{
this.GridView1.Columns[0].HeaderText = "";
this.GridView1.Columns[0].HeaderText = "29-31";
}
else if (DropDownList1.SelectedItem.Text == "April")
{
this.GridView1.Columns[0].HeaderText = "";
this.GridView1.Columns[0].HeaderText = "29-30";
}
else if (DropDownList1.SelectedItem.Text == "May")
{
this.GridView1.Columns[0].HeaderText = "";
this.GridView1.Columns[0].HeaderText = "29-31";
}
}
4

1 回答 1

1

您可以在客户端使用 Javascript 来完成。如果您观察网格视图，那么您会注意到 row[0] 是 gridview 的标题行。现在您可以检查决定您必须更改的单元格测试。请参阅以下 javascript 函数来完成您的任务

<script language="Javascript"> 
function ChangeHeaderText()
{
   var gridObject = document.getElementById("Gridview1"); 
   gridObject.rows[0].cells[0].innerText = 'NewHeader Text'; 
   return false; 
} 
</script>

//call above function on 'onchange' event of dropdownlist
<asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True" onchange = "return ChangeHeaderText()"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
</asp:DropDownList>

试试这个它会工作......

于 2012-05-16T07:10:02.550 回答