.net Gridview:导出到csv问题
我有下面的场景。我有两种用数据填充GridView的方法。详情如下:.net Gridview:导出到csv问题,.net,excel,csv,export,export-to-excel,.net,Excel,Csv,Export,Export To Excel,我有下面的场景。我有两种用数据填充GridView的方法。详情如下: protected void btSearch_Click(object sender, EventArgs e) { lqPackWeights.WhereParameters.Clear(); ControlParameter cp = new ControlParameter(); cp.Type = TypeCode.String; if (radBuyer.Checked)
protected void btSearch_Click(object sender, EventArgs e)
{
lqPackWeights.WhereParameters.Clear();
ControlParameter cp = new ControlParameter();
cp.Type = TypeCode.String;
if (radBuyer.Checked)
{
cp.ControlID = "ddlProd";
cp.PropertyName = "SelectedValue";
lbRadMiss.Text = "";
}
else if (radProd.Checked)
{
cp.ControlID = "tbxProdAC";
cp.PropertyName = "Text";
lbRadMiss.Text = "";
}
else
{
cp.ControlID = "lbRadMiss";
cp.PropertyName = "Text";
lbRadMiss.Text = "Please check appropriate radio button before you attempt a search";
}
cp.Name = "IDDesc";
lqPackWeights.WhereParameters.Add(cp);
GridView1.DataSourceID = "lqPackWeights";
GridView1.DataBind();
}
及
这两种方法都可以很好地使用相应的数据集填充gridview
我还有以下将gridview内容导出为csv的代码:
protected void btnExportCSV_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.csv");
Response.Charset = "";
Response.ContentType = "application/text";
GridView1.AllowPaging = false;
GridView1.DataBind();
StringBuilder sb = new StringBuilder();
for (int k = 0; k < GridView1.Columns.Count; k++)
{
sb.Append(GridView1.Columns[k].HeaderText + ',');
}
sb.Append("\r\n");
for (int i = 0; i < GridView1.Rows.Count; i++)
{
for (int k = 0; k < GridView1.Columns.Count; k++)
{
sb.Append(GridView1.Rows[i].Cells[k].Text + ',');
}
sb.Append("\r\n");
}
Response.Output.Write(sb.ToString());
Response.Flush();
Response.End();
}
protectedvoid btnExportCSV\u单击(对象发送方,事件参数e)
{
Response.Clear();
Response.Buffer=true;
AddHeader(“内容处置”、“附件;文件名=GridViewExport.csv”);
响应。Charset=“”;
Response.ContentType=“应用程序/文本”;
GridView1.AllowPaging=false;
GridView1.DataBind();
StringBuilder sb=新的StringBuilder();
for(int k=0;k
导出到csv在第一种情况下(即if/else if场景)效果很好,但在第二种情况下,只提取标题
这到底是怎么回事?!我添加了一些中断,看起来正在执行导出到csv代码,但是实际的GridView内容没有放在同一个csv文件中
有什么想法吗?请确保在导出之前重新绑定数据。不久前,我在一个项目中遇到了同样的问题,因为我们在GridView上关闭了VIEWSTATE,所以在回发时,我们试图在网格填充数据之前导出数据。我实际上通过删除GridView1.AllowPaging=false解决了这个问题;GridView1.DataBind();从导出脚本
不知道为什么它会起作用……但它确实起作用了 您需要添加一个javascript函数。查看这篇解释它的博文: 谢谢
Jon是否可能在您尝试导出时GridView实际上还没有绑定(因此没有行)?您好Mattruma-感谢您的关注。抱歉我的无知,但我应该如何重新绑定数据,即我应该将数据绑定到哪里?我觉得自己是这样一个问这些问题的工具,因为我知道这些问题很可能非常简单,可笑。这不是问题!我们的代码中通常有一个名为BindData()的方法,它将数据绑定到网格,并执行任何过滤。在导出方法中,我们总是先调用BindData(),然后再进行导出。
protected void btnExportCSV_Click(object sender, EventArgs e)
{
Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition", "attachment;filename=GridViewExport.csv");
Response.Charset = "";
Response.ContentType = "application/text";
GridView1.AllowPaging = false;
GridView1.DataBind();
StringBuilder sb = new StringBuilder();
for (int k = 0; k < GridView1.Columns.Count; k++)
{
sb.Append(GridView1.Columns[k].HeaderText + ',');
}
sb.Append("\r\n");
for (int i = 0; i < GridView1.Rows.Count; i++)
{
for (int k = 0; k < GridView1.Columns.Count; k++)
{
sb.Append(GridView1.Rows[i].Cells[k].Text + ',');
}
sb.Append("\r\n");
}
Response.Output.Write(sb.ToString());
Response.Flush();
Response.End();
}