<Query>
<Where>
<And>
<Contains>
<FieldRef Name="Department" />
<Value Type="Text">cbu</Value>
</Contains>
<Contains>
<FieldRef Name="Location" />
<Value Type="Text">suzhou</Value>
</Contains>
</And>
</Where>
</Query>
于是我试想三个条件不就是如下语句了：
代码
<Query>
<Where>
<And>
<Contains>
<FieldRef Name="Department" />
<Value Type="Text">cbu</Value>
</Contains>
<Contains>
<FieldRef Name="Location" />
<Value Type="Text">suzhou</Value>
</Contains>
<Contains>
<FieldRef Name="Publisher" />
<Value Type="Text">kingstar</Value>
</Contains>
</And>
</Where>
</Query>
Error: One or more field types are not installed properly. Go to the list settings page to delete these fields.
<And>
<Eq><FieldRef Name=”Title”><Value Type=”Text”>Value</Value></Eq>
<Eq><FieldRef Name=”ContentType”><Value Type=”Text”>Product</Value></Eq>
</And>
<Or>
<Eq><FieldRef Name=”Title”><Value Type=”Text”>Value</Value></Eq>
<Eq><FieldRef Name=”ContentType”><Value Type=”Text”>Product</Value></Eq>
</Or>
<And>
<And>
<Eq><FieldRef Name=”Title”><Value Type=”Text”>Value</Value></Eq>
<Eq><FieldRef Name=”ContentType”><Value Type=”Text”>Product</Value></Eq>
</And>
<Eq><FieldRef Name=”Field1”><Value Type=”Text”>Value</Value></Eq>
</And>
<Or>
<Or>
<Eq><FieldRef Name=”Title”><Value Type=”Text”>Value</Value></Eq>
<Eq><FieldRef Name=”ContentType”><Value Type=”Text”>Product</Value></Eq>
</Or>
<Eq><FieldRef Name=”Field1”><Value Type=”Text”>Value</Value></Eq>
</Or>
按上面的写法，多个And 不是要判断很多次，如果一个页面有100个查询条件，不是写出人命来了，有没更简便的方法呢？答案当然是有的啦，请耐心看下去吧，(*^__^*)
/// <summary>
///查询条件的拼接
/// </summary>
/// <param name="fieldvalue">字段的值/param>
/// <param name="fieldname">字段名</param>
/// <param name="fieldtype">字段的类型</param>
/// <returns>模糊查询语句CAML</returns>
protected string GetSPQuery(string fieldvalue,string fieldname, string fieldtype)
{
System.Text.StringBuilder strbuilder = new System.Text.StringBuilder();
if (fieldvalue.Trim() != string.Empty)
{
if (int.Parse(ViewState["countand"].ToString()) >= 1)
{
strbuilder.Append("<Contains>");
strbuilder.Append("<FieldRef Name=\"" + fieldname + "\" />");
strbuilder.Append(" <Value Type=\"" + fieldtype + "\">" + fieldvalue + "</Value>");
strbuilder.Append(" </Contains>");
strbuilder.Append("</And>");
}
else
{
strbuilder.Append("<Contains>");
strbuilder.Append("<FieldRef Name=\"" + fieldname + "\" />");
strbuilder.Append(" <Value Type=\"" + fieldtype + "\">" + fieldvalue + "</Value>");
strbuilder.Append(" </Contains>");
}
ViewState["countand"] =int.Parse(ViewState["countand"].ToString()) + 1;
return strbuilder.ToString();
}
else
return string.Empty;
}
System.Text.StringBuilder strbulider = new System.Text.StringBuilder();
System.Text.StringBuilder strbuliderEnd = new System.Text.StringBuilder();
// strbulider.Append(" <OrderBy><FieldRef Name=\"ID\" /> </OrderBy>");
strbulider.Append("<Where>");
strbuliderEnd.Append(GetSPQuery(txtDepartment.Text.Trim(), "Department", "Text"));
strbuliderEnd.Append(GetSPQuery(txtLocation.Text.Trim(), "Location", "Text"));
strbuliderEnd.Append(GetSPQuery(txtPublisher.Text.Trim(), "Publisher", "Text"));
for (int i = 2; i <= int.Parse(ViewState["countand"].ToString()); i++)
{
strbulider.Append("<And>");
}
strbulider.Append(strbuliderEnd.ToString());
strbulider.Append("</Where>");
query.Query = strbulider.ToString();
代码