gridview隐藏了列后，要在什么事件中取得模板列中的控件值？

2007-07-11 12:39:42 226 阅读 AI 写同款 · GEO 优化AI 选题数据监测一键分发 ›

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<asp:TemplateField HeaderText="小图片" SortExpression="ImgUrlSml">
<EditItemTemplate>
<asp:Label ID="Label2" runat="server" Text='<%# Eval("ImgUrlSml") %>'></asp:Label>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Bind("ImgUrlSml") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
++++++++++++++++++++++++++++++++++++++++

Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
e.Row.Cells(8).Visible = False
End If
End Sub

问题一：怎样隐藏HeaderText？
问题二：如何取得Label1的值？

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切换为时间正序

Jinglecat 2007-07-11

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上面代码贴乱了，无法直接运行，

主要就是使用 FindControl 方法的使用

Jinglecat 2007-07-11

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问题一：怎样隐藏HeaderText？
＝＝＝＝＝＝
你执行了
e.Row.Cells(8).Visible = False
还可以看到 HeaderText ？？？

问题二：如何取得Label1的值？
＝＝＝＝＝＝
你准备在哪里获取？

// 外部 Button
protected void Button1_Click(object sender, EventArgs e)
{
int cellIndex = 0; // 单元格索引
foreach (GridViewRow row in GridView1.Rows) {
CheckBox chk = row.FindControl("MyCheckBoxID") as CheckBox;
Label lbl = (Label)row.FindControl("MyLabelID");
// OR
//int cellIndexOfCheckBox = 1; // 表示 CheckBox 所在列索引
//CheckBox chk = row.Cells[cellIndexOfCheckBox].Controls[0] as CheckBox;
if (chk.Checked) {
Label1.Text = row.Cells[cellIndex].Text;
}
}
}

// RowDataBound 事件
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
CheckBox chk = e.Row.FindControl("MyCheckBoxID") as CheckBox;
Label lbl = (Label)e.Row.FindControl("MyLabelID");
}

// RowCommand 事件
protected void GridView1_RowCommand(object sender, GridViewCommandEventArgs e)
{
Control cmdSource = e.CommandSource as Control;
GridViewRow row = cmdSource.NamingContainer as GridViewRow;
int rowIndex = row.RowIndex;
int cellIndex = 0;
Label1.Text = row.Cells[cellIndex].Text;
CheckBox chk = row.FindControl("MyCheckBoxID") as CheckBox;
Label lbl = (Label)row.FindControl("MyLabelID");
}

以专业开发人员为伍 2007-07-11

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GridView1.Columns[8].Visible=false;

leo_boy 2007-07-11

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Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
e.Row.Cells(8).Visible = False
End If
End Sub

这样还是没能隐藏HeaderText哦？是不是跟我用objectdatasource绑定gridview有关系？

leo_boy 2007-07-11

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搞定。刚才少写了[e.RowIndex]，怪不得老出错。
感谢晓风残月 >> 问题需简洁，错误要详细)

Jinglecat 2007-07-11

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这样的话如何隐藏HeaderText？
==========
当然还得你自己手动隐藏
如你自己贴的方法
Protected Sub GridView1_RowDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewRowEventArgs) Handles GridView1.RowDataBound
If e.Row.RowType = DataControlRowType.DataRow Then
e.Row.Cells(8).Visible = False
End If
End Sub

Jinglecat 2007-07-11

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For Each row As GridViewRow In GridView1.Rows
imgurlsml = DirectCast(row.Cells(8).FindControl("HiddenField1"), HiddenField).Value
System.IO.File.Delete(Server.MapPath("../") + imgurlsml)
Next
=======
晕，竟然遍历所行

》》》》》》

// C#
GridViewRow row = GridView1.Rows[e.RowIndex];
imgurlsml = ((HiddenField)row.FindControl("HiddenField1")).Value;
System.IO.File.Delete(Server.MapPath("../") + imgurlsml);

leo_boy 2007-07-11

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不对哦。发现我用HiddenField，这样循环是删掉所有图片了。。。哪里错了？

leo_boy 2007-07-11

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刚才我改用HiddenField了。

<asp:TemplateField SortExpression="ImgUrlSml">
<ItemTemplate>
<asp:HiddenField ID="HiddenField1" runat="server" Value='<%# Bind("ImgUrlSml") %>' />
</ItemTemplate>
</asp:TemplateField>
++++++++++++++++++++++++++++++++++++++++
Protected Sub GridView1_RowDeleting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewDeleteEventArgs) Handles GridView1.RowDeleting
Dim imgurlsml, imgurlbig As String
For Each row As GridViewRow In GridView1.Rows
imgurlsml = DirectCast(row.Cells(8).FindControl("HiddenField1"), HiddenField).Value
System.IO.File.Delete(Server.MapPath("../") + imgurlsml)
Next
End Sub

这样的话如何隐藏HeaderText？

gridview隐藏了列后，要在什么事件中取得模板列中的控件值？

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