我们在数据库中有一个student数据表:
注:studentSex为Bit类型,其中1代表男,0代表女
在GridView中显示情况:
我们在选择Edit后,需要在Sex列中以DropDownList形式展现,并且展现的DropDownList的默认选项当前学生的性别。如图所示:
Sex列代码:
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<asp:TemplateField HeaderText="Sex">
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<EditItemTemplate>
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<asp:DropDownList ID="sex" runat="server">
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</asp:DropDownList>
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</EditItemTemplate>
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<ItemTemplate>
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<asp:Label ID="Label1" runat="server" Text='<%# Convert.ToBoolean(Eval("studentSex"))?"男":"女" %>'></asp:Label>
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</ItemTemplate>
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<HeaderStyle Width="50px" />
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</asp:TemplateField>
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后台代码:
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protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
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{
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bool sex = Convert.ToBoolean(DataBinder.Eval(e.Row.DataItem, "studentSex"));
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if (e.Row.Cells[2].FindControl("sex") != null)
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{
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DropDownList ddl = (DropDownList)e.Row.Cells[2].FindControl("sex");
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ListItem li1=new ListItem("男","1");
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if (sex)
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{
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li1.Selected = true;
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}
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ddl.Items.Add(li1);
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ListItem li2 = new ListItem("女", "0");
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if (!sex)
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{
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li2.Selected = true;
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}
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ddl.Items.Add(li2);
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}
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}
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