C# ASP.NET 在模板字段中的 Gridview 单元格中更改文本和颜色
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ASP.NET Change Text and Color in Gridview cell in a Template Field
提问by Apollo
I have Gridview in ASP.net that displays data. Depending on the data it changes color and text depending on the value of the cell. This works fine when a column is NOT a template field.
我在 ASP.net 中有显示数据的 Gridview。根据数据，它会根据单元格的值更改颜色和文本。当列不是模板字段时，这可以正常工作。
//WORKS WHEN IS NOT A TEMPLATE FIELD
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.Cells[2].Text == "1")
{
e.Row.Cells[2].Text = "IN";
e.Row.Cells[2].BackColor = Color.Blue;
e.Row.Cells[2].ForeColor = Color.White;
}
}
Now I converted the Column in to a Template field and nothing works.
现在我将列转换为模板字段，但没有任何效果。
//DOEST NOT WORK WHEN IS a TEMPLATE FIELD
if (e.Row.RowType == DataControlRowType.DataRow)
{
if (e.Row.Cells[2].Text == "1")
{
e.Row.Cells[2].Text = "IN";
e.Row.Cells[2].BackColor = Color.Blue;
e.Row.Cells[2].ForeColor = Color.White;
}
}
I GOT THE COLOR WORKING, but now I need to change the Text to the following. IF statusID == 1 then display IN, else if statusID == 2 then display OUT
我得到了颜色，但现在我需要将文本更改为以下内容。如果 statusID == 1 则显示 IN，否则如果 statusID == 2 则显示 OUT
<asp:TemplateField HeaderText="StatusID" SortExpression="StatusID">
<EditItemTemplate>
<asp:DropDownList ID="DropDownList1" runat="server" SelectedValue = '<%# Bind("StatusID") %>'>
<asp:ListItem Value="1">IN</asp:ListItem>
<asp:ListItem Value="2">OUT</asp:ListItem>
</asp:DropDownList>
</EditItemTemplate>
<ItemTemplate>
<asp:Label ID="lblStatus" runat="server" Text='<%# Bind("StatusID") %>' ForeColor='<%# Convert.ToString(Eval("StatusID")) == "1" ? System.Drawing.Color.Green: Convert.ToString(Eval("StatusID")) == "2" ? System.Drawing.Color.Red: System.Drawing.Color.Purple%>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
Any of you know how to solve this issue. Thanks in advance.
你们中的任何人都知道如何解决这个问题。提前致谢。
采纳答案by Win
The reason doesn't work in template column is status value is null. Try the following.
在模板列中不起作用的原因是状态值为空。请尝试以下操作。
// In template column,
if (e.Row.RowType == DataControlRowType.DataRow)
{
var status = (Label)e.Row.FindControl("lblStatus");
if (status.Text == "1")
{
e.Row.Cells[2].Text = "IN";
e.Row.Cells[2].BackColor = Color.Blue;
e.Row.Cells[2].ForeColor = Color.White;
}
}
Or cast DataItem to appropiate object and get the status value.
或者将 DataItem 转换为合适的对象并获取状态值。
// In template column,
if (e.Row.RowType == DataControlRowType.DataRow)
{
var obj = (MyObject)e.Row.DataItem;
if (obj.Status == 1)
{
e.Row.Cells[2].Text = "IN";
e.Row.Cells[2].BackColor = Color.Blue;
e.Row.Cells[2].ForeColor = Color.White;
}
}
回答by Amit Singh
if (e.Row.RowType == DataControlRowType.DataRow)
{
Label lbl=(Label)e.Row.FindControl("lblStatus");
if (lbl.Text == "1")
{
lbl.Text = "IN";
e.Row.Cells[2].BackColor = Color.Blue;
e.Row.Cells[2].ForeColor = Color.White;
}
}
回答by SMHasnain
I am a vb programmar here is a sample code.
我是一个 vb programmar 这里是一个示例代码。
If e.Row.RowType = DataControlRowType.DataRow Then
Dim abc As Label = TryCast(e.Row.FindControl("label1"), Label)
If abc.Text = "ADMIN" Then
e.Row.Cells(7).ForeColor = Drawing.Color.Blue
End If
End If
i really hope it works.
我真的希望它有效。
回答by Leo Semenov
Use ItemTemplateand surround Evalwith any HTML you need, for example, to change your color.
使用ItemTemplate和包围Eval您需要的任何 HTML，例如，更改您的颜色。
Text='<%# "Your HTML(use FONT COLOR=BLUE)" + Eval("HealthUnit") + "Close your HTML here" %>
as, here:
如，这里：
<asp:TemplateField HeaderText="Health Unit Website">
<ItemTemplate>
<asp:HyperLink runat="server"
NavigateUrl='<%# Eval("Website") %>'
tabindex="-1"
Target="_blank"
Text='<%# "<font color=blue><b>" +
Eval("HealthUnit") +
"</b></font>" %>'>
</asp:HyperLink>
</ItemTemplate>
<ItemStyle HorizontalAlign="Left" VerticalAlign="Top" width="14%" />
</asp:TemplateField>
