Grid.renderControl return empty при импорте внутри multiview

Question

Я уже более двух дней застрял в этом, и я искал везде решение, но без каких-либо результатов, почему на земле, когда я пытаюсь отобразить Grid в html, он возвращается пустым стоимость ? это мой код:

<asp:MultiView ID="MultiView1" ActiveViewIndex="0" runat="server" > 
<asp:View ID="View1" runat="server" > 
<telerik:RadGrid ID="RadGrid1" runat="server" RegisterWithScriptManager="false" AutoGenerateColumns="false" > 
<MasterTableView> 
<Columns> 
<telerik:GridBoundColumn HeaderText="ID" DataField="ID"></telerik:GridBoundColumn> 
<telerik:GridBoundColumn HeaderText="Name" DataField="NAME"></telerik:GridBoundColumn> 
<telerik:GridBoundColumn HeaderText="LastName" DataField="LASTNAME"></telerik:GridBoundColumn> 
<telerik:GridBoundColumn HeaderText="Description" DataField="DESCRIPTION"></telerik:GridBoundColumn> 
</Columns> 
</MasterTableView> 
</telerik:RadGrid> 
<asp:Button ID="Navigate" runat="server" OnClick="Navigate_Click" Text="Next" /> 
</asp:View> 
<asp:View ID="View2" runat="server" > 

Save your changes 
<asp:Button ID="save" runat="server" OnClick="save_click" Text="Save " /> 
</asp:View> 
</asp:MultiView> 

C#:

private void convertRadGridTohtml() 
{ 
    StringBuilder SB = new StringBuilder(); 
    StringWriter SW3 = new StringWriter(SB); 
    HtmlTextWriter htmlTW = new HtmlTextWriter(SW3); 
    RadGrid RadGrid1 = (RadGrid)MultiView1.Views[1].FindControl("RadGrid1"); 

    RadGrid1.RenderControl(htmlTW); 
    StringWriter oStringWriter = new StringWriter(); 
    HtmlTextWriter oHtmlTextWriter = new HtmlTextWriter(oStringWriter); 
    RadGrid1.RenderControl(oHtmlTextWriter); 
    string html = oHtmlTextWriter.InnerWriter.ToString(); 
    // toput.InnerHtml = html; 
} 

protected void save_click(object sender, EventArgs e) 
{ 
    convertRadGridTohtml(); 
} 
    protected void Page_Load(object sender, EventArgs e) 
{ 
    RadGrid1.DataSource= CreateTable(); 
    RadGrid1.DataBind(); 
} 

Answer 1

Пожалуйста, попробуйте ниже фрагмент кода.

.ASPX.CS

public string strQuery 
{ 
    get 
    { 
     if (ViewState["strQuery"] == null) 
     { 
      return ""; 
     } 
     else 
     { 
      return ViewState["strQuery"].ToString().Trim(); 
     } 
    } 

    set { ViewState["strQuery"] = value; } 

} 



protected void Page_Load(object sender, System.EventArgs e) 
{ 

    RadGrid1.DataSource = CreateTable(); 
    RadGrid1.DataBind(); 
} 



protected void save_click(object sender, EventArgs e) 
{ 
    string html = strQuery; 
} 
protected void Navigate_Click(object sender, EventArgs e) 
{ 
    convertRadGridTohtml(); 
    MultiView1.SetActiveView(View2); 
} 

private void convertRadGridTohtml() 
{ 
    StringBuilder SB = new StringBuilder(); 
    StringWriter SW3 = new StringWriter(SB); 
    HtmlTextWriter htmlTW = new HtmlTextWriter(SW3); 
    RadGrid RadGrid1 = (RadGrid)MultiView1.Views[1].FindControl("RadGrid1"); 

    RadGrid1.RenderControl(htmlTW); 
    StringWriter oStringWriter = new StringWriter(); 
    HtmlTextWriter oHtmlTextWriter = new HtmlTextWriter(oStringWriter); 
    RadGrid1.RenderControl(oHtmlTextWriter); 
    strQuery = oHtmlTextWriter.InnerWriter.ToString(); 
}