How to show GridView's header and footer if all rows are deleted RSS

• • Reply
  n3x

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  0 Points

  5 Posts

  How to show GridView's header and footer if all rows are deleted

  Nov 21, 2020 10:41 PM|n3x|LINK

  I have GridView with CRUD operations, on load I'm adding one empty row with no data just to show the grid, after that I can add new rows, update, delete, but when I delete all rows my grid disappears and I lose Grid's header and footer.

  protected void Page_Load(object sender, EventArgs e)
  {
                  GridView1.DataSource = new object[] { null };
                  GridView1.DataBind();
  }
  

  Is there any solution to set this row static?

   protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
          {
              if (e.Row.RowType == DataControlRowType.DataRow)
              {
                  if (e.Row.DataItem == null)
                  {
                      e.Row.Visible = false;
                  }
              }
          }

• • Reply
  yij sun

  Contributor

  3730 Points

  1424 Posts

  Re: How to show GridView's header and footer if all rows are deleted

  Nov 23, 2020 06:14 AM|yij sun|LINK

  Hi n3x,

  Accroding to your description,I suggest you could set ShowFooter="true" , ShowHeader="true" and  ShowHeaderWhenEmpty="true".

  If you have other requirments,you could post sample to us.It will help us to solve your problems.

  Just like this:

   <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" OnRowDataBound="GridView1_RowDataBound" ShowFooter="true" ShowHeader="true" ShowHeaderWhenEmpty="true">
              <Columns>
                  <asp:TemplateField HeaderText="Id">
                      <ItemTemplate>
                          <asp:Label ID="lblId" runat="server" Text='<%# Bind("Id") %>'></asp:Label>
                      </ItemTemplate>
                  </asp:TemplateField>
                  <asp:TemplateField HeaderText="Num">
                      <ItemTemplate>
                          <asp:Label ID="lblnum" runat="server" Text='<%# Bind("num") %>'></asp:Label>
                      </ItemTemplate>
                  </asp:TemplateField>
                  <asp:TemplateField HeaderText="Total">
                      <ItemTemplate>
                          <asp:Label ID="lbltotal" runat="server" Text='<%# Bind("total") %>'></asp:Label>
                      </ItemTemplate>
                  </asp:TemplateField>
              </Columns>
          </asp:GridView>

  Code-behind:

   protected void Page_Load(object sender, EventArgs e)
          {
              GridView1.DataSource = new object[] { null };
              GridView1.DataBind();
          }
          protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
          {
              if (e.Row.RowType == DataControlRowType.DataRow)
              {
                  if (e.Row.DataItem == null)
                  {
                      e.Row.Visible = false;
                  }
              }
          }

  Result:

  

  Best regards,

  Yijing Sun

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