[英]Why rowdatabound can't find a link button in gridview?
我試圖通過RowDataBound從gridview獲取鏈接按鈕,但是它返回null,為什么? 這個名字是正確的。 即使您可以在代碼中看到,但仍然無法正常工作。
網格視圖:
<asp:GridView ID="grdViewWorks" OnRowDataBound="grdViewWorks_RowDataBound" runat="server" OnRowCommand="grdViewWorks_RowCommand" AutoGenerateColumns="false" EmptyDataText="No Data Found"
CssClass="table table-responsive table-bordered table-striped">
<Columns>
<asp:TemplateField HeaderText="Work No">
<ItemTemplate>
<asp:Label ID="lblWorkNo" runat="server" Text='<%# Eval("WorkNo") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField HeaderText="NIT No">
<ItemTemplate>
<asp:Label ID="lblNITNo" runat="server" Text='<%# Eval("NIT_No") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="WorkName" HeaderText="Work Name" />
<asp:BoundField DataField="OpeningDate" HeaderText="Opening Date" />
<asp:BoundField DataField="OpeningTime" HeaderText="Opening Time" />
<asp:BoundField DataField="OrganizationName" HeaderText="Organization" />
<asp:BoundField DataField="OfficeName" HeaderText="Office" />
<asp:TemplateField HeaderText="Show Contractors">
<ItemTemplate>
<asp:LinkButton ID="btnShowContractors" runat="server" Text="Show Contractors"
OnClick="btnShowContractors_Click"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
的.cs
protected void grdViewWorks_RowDataBound(object sender, GridViewRowEventArgs e)
{
try
{
LinkButton lb = e.Row.FindControl("btnShowContractors") as LinkButton;
ScriptManager.GetCurrent(this).RegisterPostBackControl(lb);
}
catch (Exception ex)
{
Utility.Msg_Error(this.Master, ex.Message);
}
}
lb始終為空。 為什么呢
在將任何內容添加到rowdatabound事件之前,您必須使用此條件
if (e.Row.RowType == DataControlRowType.DataRow)
{
LinkButton lb = e.Row.FindControl("btnShowContractors") as LinkButton;
ScriptManager.GetCurrent(this).RegisterPostBackControl(lb);
}
試試這個
if (e.Row.RowType == DataControlRowType.DataRow)
{
LinkButton lb = e.Row.FindControl("btnShowContractors") as LinkButton;
}
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