Question

我试图在rowdatabound中的每个单元格上检查获取文本，这样有点对我不起作用，因为它给出了空白记录。下面是我的设计。在Rowdatabound上获取每个单元格的标签并检查值并相应地更改背景颜色。我需要找到行单元格。

<asp:GridView ID="grv_taskfilter" runat="server"  AutoGenerateColumns="False"
    style="margin-top: 0px" OnRowDataBound="gv_RowDataBound" BackColor="White" 
    BorderColor="White" BorderStyle="Ridge" BorderWidth="2px"  CellPadding="2"
    CellSpacing="1" Font-Size="XX-Small" GridLines="None" >
        <Columns>
            <%--<asp:TemplateField ItemStyle-Width="30px" HeaderText="Project ID">
                <ItemTemplate>
                    <asp:Label ID="lblProjectID" runat="server"
                        Text='<%# Eval("ID")%>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>--%>
            <asp:TemplateField>
                <HeaderTemplate>
                    <asp:Label ID="lbl_ProjectNamehead" Text='Project Name' runat="server"></asp:Label>
                </HeaderTemplate>
                <ItemTemplate>
                 <a href="Task_description.aspx?id=<%#Eval("ProjectName")%>&flag=0" > <%# Eval("ProjectName") %></a>
                   <%-- <asp:LinkButton ID="lbl_ProjectName" Text='<%# Eval("ProjectName") %>' 
                        PostBackUrl='<%# "~/Task_description.aspx?RowIndex=" & Container.DataItemIndex %>'
                       runat="server"></asp:LinkButton>--%>
                </ItemTemplate>                                   
            </asp:TemplateField>

            <asp:TemplateField>
                <HeaderTemplate>
                    <asp:Label ID="lbl_ProjectNoshead" Text='Project nos' runat="server"></asp:Label>
                </HeaderTemplate>
                <ItemTemplate>
                    <asp:Label ID="lblProjectNos" Text='<%# Eval("ProjectNos") %>' runat="server"></asp:Label>
                </ItemTemplate>                                    
            </asp:TemplateField>                               

            <asp:TemplateField>
                <HeaderTemplate>
                    <asp:Label ID="lbl_QuestionScripting" Text='Questionnaire Submission for sripting' runat="server"></asp:Label>
                </HeaderTemplate>
                <ItemTemplate>
                    <asp:Label ID="lblQuestion_Scripting" Text='<%# Eval("Questionnaire_Submission_for_sripting") %>' runat="server"></asp:Label>
                </ItemTemplate>                                   
            </asp:TemplateField>

            <asp:TemplateField>
                <HeaderTemplate>
                    <asp:Label ID="lbl_Programing" Text='Programing of questionnaire and/or ConJoint Design/Email Send out' runat="server"></asp:Label>
                </HeaderTemplate>
                <ItemTemplate>
                    <asp:Label ID="lblPrograming_questionnaire" Text='<%# Eval("Programing_of_questionnaire_and_or_ConJoint_Design_Email_Send_out") %>' runat="server"></asp:Label>
                </ItemTemplate>                                   
            </asp:TemplateField>
</asp:GridView>

Answer 1

 if (e.Row.RowType == DataControlRowType.DataRow)
      {

              for (int i = 0; i < e.Row.Cells.Count; i++)
              {

                  Label lbl1 = (Label)e.Row.FindControl("lbl_Question_Scripting");//use e.rows.cell[]

                  if (lbl1.Text == "Not yet started")
                  {
                      e.Row.Cells[i].BackColor = Color.Gray;
                  }

                  if (lbl1.Text == "In progress")
                  {
                      e.Row.Cells[i].BackColor = Color.Orange;
                  }

                  if (lbl1.Text == "Alert")
                  {
                      e.Row.Cells[i].BackColor = Color.Yellow;
                  }
                  if (lbl1.Text == "Missed deadline")
                  {
                      e.Row.Cells[i].ForeColor = Color.Red;
                      // e.Row.Cells[i].BackColor = Color.Red;
                  }
                  if (lbl1.Text == "Not Applicable")
                  {
                      e.Row.Cells[i].BackColor = Color.BlueViolet;
                  }

          }
      }

当我这样做时，它改变整个行颜色，就像我尝试使用forecolor一样，每个单元格应根据状态具有不同的颜色

Answer 2

如果你想要行单元格，试试这个

protected void grv_taskfilter_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            GridViewRow grv = (GridViewRow)e.Row;

            Label lbl1 = (Label)grv.FindControl("lblQuestion_Scripting");
            if (lbl1.Text == "Condition_Text")
            {
                TableCell rowCell = (TableCell)lbl1.Parent;
                rowCell.Style["background"] = "red";
            }
        }
    }

编辑1：你可能会认为这是一个hacky解决方案。以下代码将假定列数是固定的，它将使用数据表作为数据源，css类用于单元格背景

为需要条件的每个现有列添加一列。例如，如果你有一个＆＃34;状态＆＃34;列，您可以添加＆＃34; STATUS_CSS＆＃34;列。
在绑定数据源之前，将条件应用于字段并将CSS列设置为适当的css类名称
绑定数据源，然后使用以下RowDataBound

-

protected void grv_taskfilter_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            GridViewRow grv = (GridViewRow)e.Row;
            DataRowView drv = (DataRowView)e.Row.DataItem;//you'll need to cast to another object if you're not using datatable
            //No need to check the value of the label. It should have been handled in step 2 above

            grv.Cells[0].CssClass = drv["Status_CSS"].ToString();// Fixed colums: Assuming that cell 0 will always be for Status
        }
    }

检查gridview中的标签文本并根据条件更改其背景颜色

2 个答案: