Question

我有一个gridview，生成的输出是

但我想删除String spreadsheetId = "my spread sheet ID"; String range = "Class Data!A2:A4"; ValueRange response = service.spreadsheets().values() .get(spreadsheetId, range) .execute();列，并希望这种类型的输出

永远不要更改SQL查询，因为这样查询就可以根据我的逻辑运行。我还想在每个文本框中删除Column_Name，如何通过使用循环并保存在SQL Server数据库中来获取所有gridview数据？

ASPX：

&nbsp

代码隐藏：

<asp:Content ID="Content2" ContentPlaceHolderID="body" Runat="Server">
    <form id="form" runat="server">
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="true" 
             onrowdatabound="GridView1_RowDataBound">
        </asp:GridView>
        <asp:Button ID="Button1" runat="server" OnClick="load" Text="gridview" />
        <asp:Button ID="Button2" runat="server" OnClick="show" Text="Button" />
        <asp:Button ID="Button3" runat="server" OnClick="save" Text="Save" />
    </form>
</asp:Content>

Answer 1

更改您的Codebehind代码：

protected void Page_Load(object sender, EventArgs e)
{
If(!IsPostBack)
{
    string query = "USE db_compiler SELECT Column_Name FROM tbl_field WHERE Table_Name='deptt'";
            con.Open();
            SqlCommand cmd = new SqlCommand(query, con);

            DataTable dt = new DataTable();
            SqlDataAdapter adp = new SqlDataAdapter(cmd);

            DataTable table = new DataTable();
            adp.Fill(dt);

            Session["num"] = dt.Rows.Count;

            for (int i = 0; i < dt.Rows.Count; i++)
            {
                DataColumn dc = new DataColumn(dt.Rows[i]["Name"].ToString());
                table.Columns.Add(dc); // Make this Column in 2nd DataTable and bind that to Gridview
            }
            DataRow r = table.NewRow();
            Session["table"] = dt;
            table.Rows.Add(r); // Add as many row you want to add  with for loop
            Gridview1.DataSource = table;
            Gridview1.DataBind();

}
}

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        for (int i = 0; i < e.Row.Cells.Count; i++)
        {
            TextBox txt = new TextBox();
            e.Row.Cells[i].Controls.Add(txt);
        }
    }
}

Answer 2

您可以尝试使用此修改后的RowDataBound事件处理程序：

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if (e.Row.RowType == DataControlRowType.DataRow)
    {
        for (int i = 1; i < e.Row.Cells.Count; i++) // Does not process the first cell
        {
            TextBox txt = new TextBox();
            TableCell cell = e.Row.Cells[i];
            txt.Text = cell.Text.Replace("&nbsp;", ""); // Removes &nbsp;
            cell.Text = "";
            cell.Controls.Add(txt);
        }
    }

    e.Row.Cells.RemoveAt(0); // Removes the first cell in the row
}

我怎样才能删除asp.net c＃中的gridview列？

2 个答案: