帮忙看个错误。。。急

[wylp_19]

private void treeView1_NodeMouseClick(object sender, TreeNodeMouseClickEventArgs e)
{
try
{

string tv = e.Node.Text.ToString();
DataTable dt = ds.Tables["tb_zcMain"];

DataView dv = new DataView(dt); switch (e.Node.Parent.Text)
{
case "资产类别":
{
dv.RowFilter = "zclb = '" + tv + "'";
this.dataGridView1.DataSource = dv;
break;
}
case "使用部门":
{
dv.RowFilter = "syfs = '" + tv + "'";
this.dataGridView1.DataSource = dv;
break;
}
case "增加方式":
{
dv.RowFilter = "zjfs = '" + tv + "'";
this.dataGridView1.DataSource = dv;
break;
}
case "使用情况":
{
dv.RowFilter = "syqk = '" + tv + "'";
this.dataGridView1.DataSource = dv;
break;
}
case "存放地点":
{
dv.RowFilter = "cfdd = '" + tv + "'";
this.dataGridView1.DataSource = dv;
break;
}
case "保管人员":
{
dv.RowFilter = "bgry = '" + tv + "'";
this.dataGridView1.DataSource = dv;
break;
}
}
}
catch (Exception err)
{
Console.WriteLine(err.Message);
}

}


DataTable dt = ds.Tables["tb_zcMain"];

dt一直是空呢。。。。帮忙看看谢谢

[saucer]

》DataTable dt = ds.Tables["tb_zcMain"];

你的ds是怎么填充的？

int count = ds.Tables.Count;
string s = ds.Tables[0].TableName;

都是什么？

[宝_爸]

1.查看ds是不是已经被填充好了。
2.表的名字["tb_zcMain"]是不是正确

[amandag]

DataTable dt = ds.Tables["tb_zcMain"];
==
数据从那里来？

[hongqi162]

猜想楼主是定义了一个全局DataSet，在page_load里面填充数据，NodeMouseClick里面获得这个dataset里面的表数据。

[hongqi162]

protected void Page_Load(object sender, EventArgs e)
{
//if (!Page.IsPostBack) 
//{
............
//}
}