What's up? Error on Formatting Webgrid-Column : The Official Microsoft ASP.NET Forums

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richard20427...

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What's up? Error on Formatting Webgrid-Column

May 18, 2011 09:25 AM|LINK

<div>Hi, everyone</div> <div></div> <div></div> <div>There's a function in Controller, for Preparing some value, and it's called somewhere:</div> <div> </div> <div> <div>

<div>private NameValueCollection GetPdtsType()
        {
            NameValueCollection nvcPdtsTypeParam = new NameValueCollection();
            nvcPdtsTypeParam.Add("1","aaa");
            nvcPdtsTypeParam.Add("2", "bbb");
            nvcPdtsTypeParam.Add("3", "ccc");
            nvcPdtsTypeParam.Add("4", "ddd");

            return nvcPdtsTypeParam;
        }</div>

</div> </div> <div> </div> <div>at the top of view , I get the NameValueCollection object:</div> <div></div> <div> <div>

@
{

    NameValueCollection nvcPdtsTypeParam = new NameValueCollection();
    if (TempData["nvcPdtsTypeParam"] != null)
    {
        nvcPdtsTypeParam = TempData["nvcPdtsTypeParam"] as NameValueCollection;
    }

}

</div> </div> <div></div> <div></div> <div>then I want to custom data in my WebGrid:</div> <div></div> <div>

    <div id="divGrid">
        @pdtsGrid.GetHtml(
            tableStyle: "TblRow",
            alternatingRowStyle: "AltRow",
            headerStyle: "HeaderRow",

            columns: pdtsGrid.Columns(
                pdtsGrid.Column(
                    columnName: "wb_Name",
                    header: "产品名称",
                    format: (item) => Html.ActionLink((string)item.wb_Name, "PdtsDetail", new { id = item.wb_Guid }),
                    style: "FstColMargin"
                ),

                //pdtsGrid.Column("wb_Type", "产品类型"),
                pdtsGrid.Column(
                    columnName: "wb_Type",
                    header: "产品类型",
                    format: (item) => nvcPdtsTypeParam[(string)item.wb_Type],
                    style: "FontAutoCol"
                ),

                pdtsGrid.Column(columnName: "wb_Url1", header: "网 址 一", style: "Fontx12Col"),
            )
        )
    </div>

</div> <div></div> <div>Notice Codes Above:</div> <div></div> <div>                pdtsGrid.Column(
                    columnName: "wb_Type",
                    header: "产品类型",
                    format: (item) => nvcPdtsTypeParam[(string)item.wb_Type],
                    style: "FontAutoCol"
                ),</div> <div></div> <div></div> <div>the field 'wb_Type' in database is tinyint</div> <div></div> <div>When I view web page, the place of bold style codes show a Error message: </div> <div></div> <div> [ Cant't change byte type to string... ]</div> <div></div> <div></div> <div></div> <div>So, how to fix it if not modify the filed type in database? Thx very much</div> <div></div> <div></div>