我有一个调用两个子网格的父网格。但出于某种未知原因，他们被解雇了两次。我似乎真的无法弄清楚这段代码的问题。谁能指导我？
后端代码(C#):
protected void grdGrpPrntRpt_RowDataBound(object sender,
GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
TextBox litGrp = (TextBox)e.Row.FindControl("litGrp");
litGrp.Text =
DataBinder.Eval(e.Row.DataItem, "GroupName").ToString();
ViewState["GroupName"] = litGrp.Text;
DataSet ds = (DataSet)ViewState["ds"];
DataView dv = ds.Tables[3].DefaultView;
dv.RowFilter = "GroupName='" + litGrp.Text + "'";
DataTable dt = dv.ToTable();
GridView gvinner = (GridView)e.Row.FindControl("grdInnerMain");
gvinner.DataSource = dt;
gvinner.DataBind();
}
}
catch (Exception Ex)
{
//report error
}
}
protected void grdInnerMain_RowDataBound(object sender,
GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
TextBox litUsr = (TextBox)e.Row.FindControl("litUsr");
litUsr.Text =
DataBinder.Eval(e.Row.DataItem, "FirstName").ToString();
// string username=
DataSet ds = (DataSet)ViewState["ds"];
DataView dv = ds.Tables[3].DefaultView;
dv.RowFilter = "userName='" +
DataBinder.Eval(e.Row.DataItem, "UserName").ToString().Replace("'",
"''") + "' and GroupName='" + ViewState["GroupName"].ToString()
+ "'";
DataTable dt = dv.ToTable();
totalPages = 0;
totalCost = 0;
GridView gvinner2 = (GridView)e.Row.FindControl("innerGrid");
gvinner2.DataSource = dt;
gvinner2.DataBind();
}
}
catch (Exception Ex)
{
//report error
}
}
protected void innerGrid_RowDataBound(object sender,
GridViewRowEventArgs e)
{
try
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
DataView dv =
((DataSet)ViewState["dspaper"]).Tables[0].DefaultView;
dv.RowFilter = "paperid=" +
Convert.ToInt32(DataBinder.Eval(e.Row.DataItem,
"paperid").ToString());
DataTable dt = dv.ToTable();
e.Row.Cells[0].Text = dt.Rows[0]["PaperName"].ToString();
// e.Row.Cells[2].Text = DataBinder.Eval(e.Row.DataItem,
"TotalPagesPrinted").ToString() == "0" ? DataBinder.Eval(e.Row.DataItem,
"TotalPagesSent").ToString() : DataBinder.Eval(e.Row.DataItem,
"TotalPagesPrinted").ToString();
e.Row.Cells[2].Text = DataBinder.Eval(e.Row.DataItem,
"TotalPage").ToString() == "0" ? DataBinder.Eval(e.Row.DataItem,
"Pages_Sent").ToString() : DataBinder.Eval(e.Row.DataItem,
"TotalPage").ToString();
// e.Row.Cells[3].Text =
Convert.ToDouble(e.Row.Cells[3].Text.ToString()).ToString("0.00");
totalPages += Convert.ToInt32(e.Row.Cells[2].Text.ToString());
totalCost += Convert.ToDouble(e.Row.Cells[3].Text.ToString());
e.Row.Cells[1].Text = DataBinder.Eval(e.Row.DataItem,
"Color").ToString() == "0" ? "B & W" : "Color";
}
if (e.Row.RowType == DataControlRowType.Footer)
{
e.Row.Cells[2].Text = totalPages.ToString();
e.Row.Cells[3].Text = totalCost.ToString("0.00");
}
if (e.Row.RowType == DataControlRowType.Header)
{
e.Row.Cells[0].Text =
CResourcesManager.GetString("grdHeaderMediaReport");
e.Row.Cells[1].Text =
CResourcesManager.GetString("grdHeaderColorReport");
e.Row.Cells[2].Text =
CResourcesManager.GetString("grdHeaderPagesReport"); ;
e.Row.Cells[3].Text =
CResourcesManager.GetString("grdHeaderTotalCostReport");
}
}
catch
{ }
}
前端代码:
<asp:GridView Width="100%" ID="grdGrpPrntRpt" runat="server"
AutoGenerateColumns="False"
CellPadding="0" CellSpacing="2" BorderWidth="0px"
ShowHeader="false" RowStyle-HorizontalAlign="Left"
OnRowDataBound="grdGrpPrntRpt_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<table id="tblInnerHeader" runat="server"
width="100%" cellspacing="0" cellpadding="0">
<tr bgcolor="gray" valign="top">
<td width="20%" height="30px">
<asp:TextBox ID="litGrp"
ForeColor="White" BackColor="Gray" CssClass="LabelText2"
runat="server" BorderStyle="None"
BorderWidth="0"></asp:TextBox>
</td>
<td width="2%">
</td>
<td width="78%" align="left">
<asp:ImageButton ID="imgMainShowHide"
runat="server" ImageUrl="~/Images/plus.jpg"
OnClick="imgMainShowHide_Click" />
</td>
</tr>
</table>
<table id="tblFirstInnerGrid" runat="server"
visible="false" width="100%" cellspacing="2"
cellpadding="0">
<tr>
<td align="center">
<asp:GridView Width="100%"
ID="grdInnerMain" runat="server" AutoGenerateColumns="False"
CellPadding="0" CellSpacing="2"
BorderWidth="0px" ShowHeader="false" RowStyle-HorizontalAlign="Left"
OnRowDataBound="grdInnerMain_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<table id="tblHeader"
runat="server" width="100%" cellspacing="0" cellpadding="0">
<tr bgcolor="Wheat"
valign="top">
<td width="20%"
height="25px">
<asp:TextBox
ID="litUsr" ForeColor="Blue" BackColor="Wheat" CssClass="LabelText2"
runat="server" BorderStyle="None" BorderWidth="0"></asp:TextBox>
</td>
<td width="2%">
</td>
<td width="78%"
align="left">
<asp:ImageButton ID="imgShowHide" runat="server" ImageUrl="~/Images/plus.jpg"
OnClick="imgShowHide_Click" />
</td>
</tr>
</table>
<table id="tblInnerGrid"
runat="server" visible="false" width="100%" cellspacing="2"
cellpadding="0">
<tr>
<td align="center">
<asp:GridView
ID="innerGrid" runat="server" AutoGenerateColumns="False" CellPadding="0"
CellSpacing="2" HeaderStyle-CssClass="GridHeaderNoSorting" BorderWidth="0px"
ShowFooter="true" RowStyle-HorizontalAlign="Left" Width="98%"
OnRowDataBound="innerGrid_RowDataBound">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<%-- <asp:Label ID="lblMedia" runat="server"></asp:Label>--%>
</ItemTemplate>
</asp:TemplateField>
<%--<asp:BoundField DataField="Color" HeaderText="Color/ B & W" /> --%>
<asp:TemplateField HeaderText="Color/ B & W">
<ItemTemplate>
<%-- <asp:Label ID="lblColor" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Color").ToString()=="0" ? "B & W" :"Color" %>'></asp:Label>--%>
</ItemTemplate>
</asp:TemplateField>
<%--<asp:BoundField DataField="TotalPagesPrinted" ItemStyle-HorizontalAlign="Center" />--%>
<asp:TemplateField ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center"
FooterStyle-HorizontalAlign="Center">
<ItemTemplate>
<%--<asp:Label ID="lblPagesPrinted" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"Color").ToString()=="0" ? "B & W" :"Color" %>'></asp:Label>--%>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Total_Cost" ItemStyle-HorizontalAlign="Center" HeaderStyle-HorizontalAlign="Center"
FooterStyle-HorizontalAlign="Center" />
</Columns>
<HeaderStyle CssClass="GridHeaderNoSorting" />
<AlternatingRowStyle CssClass="GridAlternateRowStyle" />
<RowStyle CssClass="GridRowStyle" />
<FooterStyle CssClass="GridFooter" HorizontalAlign="Left" />
</asp:GridView>
</td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<AlternatingRowStyle CssClass="GridAlternateRowStyle" />
<RowStyle CssClass="GridRowStyle" />
</asp:GridView>
</td>
</tr>
</table>
</ItemTemplate>
</asp:TemplateField>
</Columns>
<AlternatingRowStyle CssClass="GridAlternateRowStyle" />
<RowStyle CssClass="GridRowStyle" />
</asp:GridView>
额外信息
出于某种原因，事件 grdGrpPrntRpt_RowDataBound 被调用的次数与下一个网格中的数据一样多。它应该在接下来的两个网格中的全部数据被绑定(bind)后立即终止，但它会再次调用它并再次重复整个过程。
最佳答案
这可能是由于 AutoEventWireUp ，在你的代码中可能是真的。
如果是，请将其设为假。谢谢
关于c# - Gridview 被调用两次，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19396191/