使用c＃asp.net在Gridview绑定时替换数据库值

Question

我正在使用c＃和asp.net在Gridview中显示一些数据库值。在绑定到Grid视图中之前，我需要通过保持一些条件来更改值。我在下面解释我的代码。

HealthComment.aspx：

 <asp:GridView ID="comnt_Gridview" runat="server" AutoGenerateColumns="false" Width="100%" CssClass="table table-striped table-bordered margin-top-zero" OnSelectedIndexChanged="comnt_Gridview_OnSelectedIndexChanged"  onrowdeleting="comnt_Gridview_RowDeleting" DataKeyNames="Bnr_ID"  >
<Columns>
<asp:TemplateField HeaderText="Sl. No" ItemStyle-CssClass="col-md-1 col-sm-1">
<ItemTemplate>
          <%# Container.DataItemIndex + 1 %>
 /ItemTemplate>
</asp:TemplateField>
 <asp:TemplateField HeaderText="Health ID" ItemStyle-CssClass="col-md-1 col-sm-1" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
<asp:Label ID="healthid" runat="server" Text='<%#Eval("Health_ID") %>'></asp:Label>
</ItemTemplate>

<asp:TemplateField HeaderText="Status" ItemStyle-CssClass="col-md-1 col-sm-1" ItemStyle-HorizontalAlign="Center">
<ItemTemplate>
 <asp:Label ID="Url" runat="server" Text='<%#Eval("Health_Comment_Status") %>'></asp:Label>
 </ItemTemplate>
 </asp:TemplateField>

 </Columns>
</asp:GridView>

HealthComment.aspx.cs：

comnt_Gridview.DataSource = objhealthCommentBL.getHealthCommentDetails();
comnt_Gridview.DataBind();

healthCommentBL.cs：

private healthCommentDL objhealthCommentDL = new healthCommentDL();
        public DataTable getHealthCommentDetails()
        {
            try
            {
                DataSet ds = objhealthCommentDL.getHealthCommentDetails();
                DataTable dt = ds.Tables[0];
                return dt;
            }
            catch (Exception e)
            {
                throw e;
            }
        }

healthCommentDL.cs：

SqlConnection con = new SqlConnection(CmVar.convar);
        public DataSet getHealthCommentDetails()
        {
            try
            {
                con.Open();
                DataSet ds = new DataSet();
                string sql = "SELECT Health_Comment_ID,Health_ID,Health_Comment_Status from T_Health_Comment";
                sql += " order by Bnr_ID ASC ";
                SqlCommand cmd = new SqlCommand(sql, con);
                SqlDataAdapter objadp = new SqlDataAdapter(cmd);
                objadp.Fill(ds);
                return ds;
            }
            catch (Exception e)
            {
                throw e;
            }
            finally
            {
                con.Close();
                con.Dispose();
            }
        }

在这里，我的要求是数据库中有两种类型的Health_Comment_Status --- ie-R and A当状态为R ，Gridview将显示已Rejected ;当状态为A ，Gridview将显示已Accepted 。请帮助我这样做。谢谢。

Answer 1

读取行值RowDataBound并将其置于条件上

Answer 2

for (int i = 0; i < GridView2.Rows.Count; i++)
{
    string Health_Comment_Status;
    Health_Comment_Status = GridView2.Rows[i].Cells[3].Text; // here you go vr =   the value of the cel
    if (Health_Comment_Status  == "R") // you can check for anything
    {
        GridView2.Rows[i].Cells[3].Text = "Rejected";
        // you can format this cell 
    }
    else
   { 
    GridView2.Rows[i].Cells[3].Text = "Accepted";
   }
}

您可以根据您的代码设置名称和项目索引。

Answer 3

您可以像这样使用C＃ 条件运算符简单地做到这一点：

<ItemTemplate>
  <asp:Label ID="Url" runat="server" 
  Text='<%#Eval("Health_Comment_Status") == "R" ? "Rejected" : "Accepted" %>'></asp:Label>
</ItemTemplate>