访问传入参数的值以单击事件c＃

Question

我有一个像这样定义的gridview ......

<asp:GridView runat="server" id="gvProjectLineage"
    ShowFooter="false"
    DataKeyNames="projectLineageID"
    AutoGenerateColumns="False"
    AllowPaging="false"
    AllowSorting="false"
    RowStyle-CssClass="shade" CellSpacing="1"
    AlternatingRowStyle-CssClass="unshade"
    BorderColor="Transparent"
    DataSourceID="gvProjectLineageDataSource"
    Width="100%">
    <HeaderStyle HorizontalAlign="Left" Font-Underline="true"></HeaderStyle>
        <Columns>
            <asp:BoundField ReadOnly="True" 
                HeaderText="Lineage ID"
                InsertVisible="false" 
                DataField="projectLineageID"
                HeaderStyle-CssClass="columnHeader" 
                ItemStyle-VerticalAlign="Top"
                Visible="false">
            </asp:BoundField>
            <asp:BoundField ReadOnly="True" 
                HeaderText="Relationship type"
                InsertVisible="false" 
                DataField="projectRelationshipType"
                HeaderStyle-CssClass="columnHeader" 
                ItemStyle-VerticalAlign="Top"
                Visible="true">
            </asp:BoundField>
            <asp:BoundField ReadOnly="True" 
                HeaderText="Related Project"
                InsertVisible="false" 
                DataField="projectTitle"
                HeaderStyle-CssClass="columnHeader" 
                ItemStyle-VerticalAlign="Top"
                Visible="true">
            </asp:BoundField>

            <asp:TemplateField ShowHeader="False" 
                HeaderStyle-Font-Underline="false" 
                ItemStyle-HorizontalAlign="Left" 
                FooterStyle-HorizontalAlign="Left">
                   <ItemTemplate>
                       <asp:LinkButton ID="btnDelete"
                           CommandArgument='<%# Eval("projectLineageID") %>'
                           CommandName="Delete" 
                           runat="server">
                           <img style="border:none;"
                             src="/content/images/icon/deleteIcon.png"
                             title="Delete this lineage" />
                       </asp:LinkButton>
                   </ItemTemplate>
            </asp:TemplateField>

            <asp:TemplateField ShowHeader="False" 
                HeaderStyle-Font-Underline="false" 
                ItemStyle-HorizontalAlign="Left" 
                FooterStyle-HorizontalAlign="Left">
                   <ItemTemplate>
                       <asp:LinkButton ID="btnDeleteAll" 
                           CommandArgument='<%# Eval("projectLineageID") %>' 
                           runat="server" 
                           OnClick="btnDeleteAll_Click" >
                           <img style="border:none;"
                            src="/content/images/icon/deleteIcon.png"
                            title="Delete this lineage AND it's reciprocal lineage" />
                       </asp:LinkButton>
                   </ItemTemplate>
            </asp:TemplateField>

        </Columns>
        <EmptyDataTemplate>There are currently no relationships identified for this S&T project.</EmptyDataTemplate>
</asp:GridView>

第一个＆＃34;删除＆＃34;按钮调用一个简单的删除查询，它可以正常删除表中选定的行。但是，当我调用第二个删除按钮（＆＃34; DeleteAll＆＃34;）时，我想使用[projectLineageID]查找项目的相关沿袭记录并一次删除它们。

当我拨打第二个删除功能＆＃34; onclick＆＃34;如下所示，我在[0]栏中得不到任何结果。

protected void btnDeleteAll_Click(object sender, EventArgs e)
{
    //Delete lineage and reciprocal lineage for relationship types 1 (Transitioned from) and 2 (Transitioned to)
    util u = new util();
    GridViewRow grdrow = (GridViewRow)((LinkButton)sender).NamingContainer;
    string strRelID = grdrow.Cells[0].Text;
    int intRelID = System.Convert.ToInt32(grdrow.Cells[0].Text);
    string relType = grdrow.Cells[1].Text;
    string relProj = grdrow.Cells[2].Text;

    Response.Write ("Deleting relationship between " +  projectID  + " and the project in column 3  " + relID + "   " + relType + "  " + relProj + "  :");
}

如何让projectLineageID将其传递给查询？ 而且，为什么我无法显示它？即使我试图＆＃34;转换＆＃34;它，我收到一个错误，告诉我＆＃34;输入字符串的格式不正确。＆＃34;

谢谢， 鲍勃