我有一個網格,我通過aspx頁面向模板字段中添加了幾列。使用靜態列和動態列清除網格
<asp:TemplateField>
<ItemTemplate>
<asp:LinkButton ID="lnkBtnDown" runat="server" CommandName="Download" Text="Download"></asp:LinkButton>
<asp:LinkButton ID="LnkBtnMan" runat="server" CommandName="Manual" Text="Manual"
Style="margin-left: 10px"></asp:LinkButton>
</ItemTemplate>
</asp:TemplateField>
網格從表中顯示搜索結果,並有幾個欄,我要躲起來,如文件名等欄,但我需要的數據,所以,我隱藏起來使用CSS樣式。
private void generateSearchGrid(DataTable dt)
{
if (dt == null || dt.Rows.Count == 0)
return;
dgvSearchResults.DataSource = dt;
dgvSearchResults.AutoGenerateColumns = false;
BoundField bfName = new BoundField();
bfName.DataField = dt.Columns["OsmProjectName"].ToString();
bfName.HeaderText = "Project Name";
BoundField bfProjID = new BoundField();
bfProjID.DataField = dt.Columns["OsmProjectID"].ToString();
bfProjID.HeaderText = "ID";
BoundField bfProjFile = new BoundField();
bfProjFile.DataField = dt.Columns["OsmProjectFile"].ToString();
bfProjFile.HeaderText = "Project File";
BoundField bfProjManual = new BoundField();
bfProjManual.DataField = dt.Columns["OsmProjectManual"].ToString();
bfProjManual.HeaderText = "Project Manual";
BoundField bfProjType = new BoundField();
bfProjType.DataField = dt.Columns["OsmProjectType"].ToString();
bfProjType.HeaderText = "Project Type";
dgvSearchResults.Columns.Add(bfProjID);
dgvSearchResults.Columns.Add(bfName);
dgvSearchResults.Columns.Add(bfProjType);
// WARNING : Keep these two at the end all the time in the same order.
dgvSearchResults.Columns.Add(bfProjFile);
dgvSearchResults.Columns.Add(bfProjManual);
dgvSearchResults.DataBind();
// Assigning a css where display has been set to none.
bfProjManual.HeaderStyle.CssClass = "hiddenCols";
bfProjID.HeaderStyle.CssClass = "hiddenCols";
bfProjFile.HeaderStyle.CssClass = "hiddenCols";
bfProjManual.ItemStyle.CssClass = "hiddenCols";
bfProjID.ItemStyle.CssClass = "hiddenCols";
bfProjFile.ItemStyle.CssClass = "hiddenCols";
}
在每一個搜索按鈕單擊事件我刷新由網格的開始,
dgvSearchResults.DataSource = null;
dgvSearchResults.DataBind();
dgvSearchResults.Columns.Clear();
但這清除所有列,包括我在預期ASPX page..as束縛的人。如果我不清除它們,搜索結果中的列就會一直堆積如山。
有沒有一種方法,我可以只清除綁定列的動態?