將gridview轉換爲圖像

我想將gridview轉換成圖像並將其保存到asp.net 3.5中的本地磁盤。我不知道該怎麼做。將gridview轉換爲圖像

任何人都可以請建議一些東西。

在此先感謝。

2011-07-21 Patel Tejas

http://stackoverflow.com/questions/2192799/html-to-image-in-javascript-or-python – rkw

您可以使用Java小程序。檢查以下網址： [此處輸入鏈接的描述] [1] [1]：http://stackoverflow.com/questions/58305/java-is-there-a-way-服用的-A-截圖，使用的Java並節省，這對一些 - 排序的 – Peyman

爲什麼你想將它轉換成圖像，我不確定。如果gridview有分頁，你必須像這樣捕獲每個頁面。更好的方法是將其導出爲類似Excel或其他東西。這裏是代碼做到這一點：

using System; 
using System.Data; 
using System.Configuration; 
using System.IO; 
using System.Web; 
using System.Web.Security; 
using System.Web.UI; 
using System.Web.UI.WebControls; 
using System.Web.UI.WebControls.WebParts; 
using System.Web.UI.HtmlControls; 

public class GridViewExportUtil 
{ 
    /// <summary> 
    /// 
    /// </summary> 
    /// <param name="fileName"></param> 
    /// <param name="gv"></param> 
    public static void Export(string fileName, GridView gv) 
    { 
     HttpContext.Current.Response.Clear(); 
     HttpContext.Current.Response.AddHeader(
      "content-disposition", string.Format("attachment; filename={0}", fileName)); 
     HttpContext.Current.Response.ContentType = "application/ms-excel"; 

     using (StringWriter sw = new StringWriter()) 
     { 
      using (HtmlTextWriter htw = new HtmlTextWriter(sw)) 
      { 
       // Create a table to contain the grid 
       Table table = new Table(); 

       // include the gridline settings 
       table.GridLines = gv.GridLines; 

       // add the header row to the table 
       if (gv.HeaderRow != null) 
       { 
        GridViewExportUtil.PrepareControlForExport(gv.HeaderRow); 
        table.Rows.Add(gv.HeaderRow); 
       } 

       // add each of the data rows to the table 
       foreach (GridViewRow row in gv.Rows) 
       { 
        GridViewExportUtil.PrepareControlForExport(row); 
        table.Rows.Add(row); 
       } 

       // add the footer row to the table 
       if (gv.FooterRow != null) 
       { 
        GridViewExportUtil.PrepareControlForExport(gv.FooterRow); 
        table.Rows.Add(gv.FooterRow); 
       } 

       // render the table into the htmlwriter 
       table.RenderControl(htw); 

       // render the htmlwriter into the response 
       HttpContext.Current.Response.Write(sw.ToString()); 
       HttpContext.Current.Response.End(); 
      } 
     } 
    } 

    /// <summary> 
    /// Replace any of the contained controls with literals 
    /// </summary> 
    /// <param name="control"></param> 
    private static void PrepareControlForExport(Control control) 
    { 
     for (int i = 0; i < control.Controls.Count; i++) 
     { 
      Control current = control.Controls[i]; 
      if (current is LinkButton) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as LinkButton).Text)); 
      } 
      else if (current is ImageButton) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as ImageButton).AlternateText)); 
      } 
      else if (current is HyperLink) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as HyperLink).Text)); 
      } 
      else if (current is DropDownList) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as DropDownList).SelectedItem.Text)); 
      } 
      else if (current is CheckBox) 
      { 
       control.Controls.Remove(current); 
       control.Controls.AddAt(i, new LiteralControl((current as CheckBox).Checked ? "True" : "False")); 
      } 

      if (current.HasControls()) 
      { 
       GridViewExportUtil.PrepareControlForExport(current); 
      } 
     } 
    } 
}

只需調用靜態導出方法與XLS文件的名稱和GridView控件：

GridViewExportUtil.Export("MyFile.XLS", myGridView);

來源

2011-07-21 05:37:12 Icemanind

以下鏈接可以幫助你：

Convert a DataGridView to a Bitmap

Exporting a DataGridView to an Excel/PDF/image file by using Reporting Services report generation - CodeProject

來源

2011-07-21 05:39:34

-2

你可以使用Java小程序。檢查以下網址：

Is there a way to take a screenshot using java and save it to some sort of image?

來源

2011-07-21 05:41:48 Peyman

將gridview轉換爲圖像

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